<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1659-1321</journal-id>
<journal-title><![CDATA[Agronomía Mesoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Mesoam]]></abbrev-journal-title>
<issn>1659-1321</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-13212018000300485</article-id>
<article-id pub-id-type="doi">10.15517/ma.v29i3.32445</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto de la composición racial sobre la calidad espermática de verracos]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of breed composition on sperm quality of boar]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valverde]]></surname>
<given-names><![CDATA[Anthony]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Madrigal-Valverde]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho-Calvo]]></surname>
<given-names><![CDATA[Marlen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zambrana-Jiménez]]></surname>
<given-names><![CDATA[Adones]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>29</volume>
<numero>3</numero>
<fpage>485</fpage>
<lpage>506</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-13212018000300485&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-13212018000300485&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-13212018000300485&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  La evaluación de la calidad seminal constituye una herramienta para mejorar los índices reproductivos en las granjas porcinas. La movilidad del espermatozoide es un parámetro que se utiliza en la evaluación de la calidad espermática, porque se relaciona con el nivel de energía del gameto masculino. El objetivo de este estudio fue determinar la influencia de la composición racial sobre variables reproductivas de calidad, cinética y movilidad del semen en verracos. Durante el año 2016, se recolectaron 240 eyaculados de 63 verracos con una edad media de 24,4±10,9 meses. Se identificaron seis grupos raciales: Duroc (D), Yorkshire (Y), Landrace (L), F1 Pietrain*Duroc (PD) y dos líneas genéticas (LA y LB). Los grupos raciales con mayor volumen de eyaculado presentaron un número total de espermatozoides más elevado (P&lt;0,05). El efecto del grupo racial fue significativo (P&lt;0,05) sobre las variables de cinética espermática, excepto para la amplitud del desplazamiento lateral de la cabeza (ALH, &#956;m). La raza Landrace presentó el mayor (P&lt;0,05) porcentaje de espermatozoides estáticos (29,30±1,57). Las diferencias más relevantes (P&lt;0,05) para motilidad total (MTOT) y mótiles progresivos (MP), se presentaron entre L y PD con valores de 70,71±1,57; 77,48±1,09 y 51,80±1,97; 59,85±1,37%, respectivamente. Los verracos adultos (&#8805;18 meses) presentaron mayores volúmenes de eyaculado y número total de espermatozoides con respecto a los verracos de edades intermedias y jóvenes, sin embargo, para las velocidades (&#956;m/s): curvilínea (VCL), rectilínea (VSL) y promedio (VAP), los verracos adultos fueron distintos (P&lt;0,05) de los verracos en edad intermedia. Se identificaron cuatro subpoblaciones espermáticas (SP), SP1 (46,83%) caracterizadas por una velocidad moderada, pero de movimiento muy progresivo, SP2 (14,78%) con movimiento activo, pero no progresivo, SP3 (8,45%) con velocidades bajas y trayectorias progresivas y SP4 (29,94%) con movimiento muy rápido, pero sin progresividad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  The assessment of the semen quality is an essential tool to improve the reproductive indexes in swine farms. The motility is the most important parameter that used in the sperm quality evaluation because it is associate to the energy of the spermatozoon. The aim of this research was to determine the influence of breed composition on reproductive variables of sperm quality, kinetics and semen motility in boars. During 2016, 240 ejaculates were collected from 63 boars with a mean age of 24.4±10.9 months. Six racial groups were identified: Duroc (D), Yorkshire (Y), Landrace (L), F1 Pietrain*Duroc (PD) and two genetic lines (LA and LB). The breeds with the highest ejaculate volume presented a higher total number of spermatozoa (P &lt;0.05). The effect of the breed was significant (P &lt;0.05) on sperm kinetics variables except for amplitude of lateral head displacement (ALH, &#956;m). The Landrace breed presented the highest (P&lt;0.05) percentage of static sperm (29.30±1.57). The most relevant differences (P&lt;0.05) for total motility (MTOT) and progressive motility (MP), were presented between L and PD with values of 70.71±1.57; 77.48±1.09 and 51.80±1.97; 59.85±1.37% respectively. Adult boars (&#8805;18 months) had higher volumes of ejaculate and total number of sperm than boars in the intermediate and young ages, however, for velocities (&#956;m/s): curvilinear (VCL), straight line (VSL) and average path (VAP), adult boars only were different (P&lt;0.05) of the boars in-between ages. Four sperm subpopulations (SP) were identified, SP1 (46.83%) characterized by a moderate speed, but of very progressive motility, SP2 (14.78%) with active movement, but not progressive, SP3 (8.45%) with low speeds and progressive path and SP4 (29.94%) with quick movement, but without progressivity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cerdo]]></kwd>
<kwd lng="es"><![CDATA[espermatozoo]]></kwd>
<kwd lng="es"><![CDATA[semen]]></kwd>
<kwd lng="es"><![CDATA[reproducción]]></kwd>
<kwd lng="en"><![CDATA[swine]]></kwd>
<kwd lng="en"><![CDATA[spermatozoa]]></kwd>
<kwd lng="en"><![CDATA[semen]]></kwd>
<kwd lng="en"><![CDATA[reproduction]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abaigar]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Holt]]></surname>
<given-names><![CDATA[W.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Harrison]]></surname>
<given-names><![CDATA[R.A.P.]]></given-names>
</name>
<name>
<surname><![CDATA[del-Barrio]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm subpopulations in boar (Sus scrofa) and gazelle (Gazella dama mhorr) semen as revealed by pattern analysis of computer-assisted motility assessments]]></article-title>
<source><![CDATA[Biol. Reprod.]]></source>
<year>1999</year>
<volume>60</volume>
<page-range>32-41</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Adamiak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kondracki]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Wysoki&#324;ska]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of season of the year on physical properties of ejaculates from Polish Large White and Polish Landrace boars]]></article-title>
<source><![CDATA[Roczniki Naukowe Zootech.]]></source>
<year>2010</year>
<volume>37</volume>
<page-range>159-67</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Amann]]></surname>
<given-names><![CDATA[R.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Katz]]></surname>
<given-names><![CDATA[D.F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reflections on CASA after 25 years]]></article-title>
<source><![CDATA[J. Androl.]]></source>
<year>2004</year>
<volume>25</volume>
<page-range>317-24</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bompart]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Molina]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Valverde]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldeira]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Yániz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez de Murga]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Soler]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CASA-Mot technology: how results are affected by the frame rate and counting chamber]]></article-title>
<source><![CDATA[Reprod Fertil Dev.]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Braundmeier]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The search is on: finding accurate molecular markers of male fertility]]></article-title>
<source><![CDATA[J. Dairy Sci.]]></source>
<year>2001</year>
<volume>84</volume>
<page-range>1915-25</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Broekhuijse]]></surname>
<given-names><![CDATA[M.L.]]></given-names>
</name>
<name>
<surname><![CDATA[&#352;o&#353;tari&#263;]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Feitsma]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gadella]]></surname>
<given-names><![CDATA[B.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of computer-assisted semen analysis to explain variations in pig fertility]]></article-title>
<source><![CDATA[J. Anim. Sci.]]></source>
<year>2012</year>
<volume>90</volume>
<page-range>779-89</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burian]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Buchta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[&#344;ehák]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Sládek]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Schmidt]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analýza spermatologických ukazatel&#367; kanc&#367; plemen b&#305;&#769;lé u&#353;lechtilé, landrase a duroc a hybridn&#305;&#769;ch kanc&#367; SL 98 F1, F2 a F3 generace]]></article-title>
<source><![CDATA[&#381;ivo&#269;. Výr.]]></source>
<year>1987</year>
<volume>32</volume>
<page-range>1097-103</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ciereszko]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ottobre]]></surname>
<given-names><![CDATA[J.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Glogowski]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of season andbreed on sperm acrosin activity and semen quality of boars]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2000</year>
<volume>64</volume>
<page-range>89-96</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Conlon]]></surname>
<given-names><![CDATA[P.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Kennedy]]></surname>
<given-names><![CDATA[B.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparison of crossbred and purebred boars for semen and reproductive characteristics]]></article-title>
<source><![CDATA[Can. J. Anim. Sci.]]></source>
<year>1978</year>
<volume>58</volume>
<page-range>63-70</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cremades]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Roca]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodriguez-Martinez]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Abaigar]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Vazquez]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinematic changes during the cryopreservation of boar spermatozoa]]></article-title>
<source><![CDATA[J. Androl.]]></source>
<year>2005</year>
<volume>26</volume>
<page-range>610-8</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davila]]></surname>
<given-names><![CDATA[M.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[P.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bolaños]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Stout]]></surname>
<given-names><![CDATA[T.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gadella]]></surname>
<given-names><![CDATA[B.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Tapia]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[da-Silvia]]></surname>
<given-names><![CDATA[C.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrusola]]></surname>
<given-names><![CDATA[C.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[F.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mitochondrial ATP is required for the maintenance of membrane integrity in stallion spermatozoa, whereas motility requires both glycolysis and oxidative phosphorylation]]></article-title>
<source><![CDATA[Reproduction]]></source>
<year>2016</year>
<volume>152</volume>
<page-range>683-94</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Didion]]></surname>
<given-names><![CDATA[B.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Computer-assisted semen analysis and its utility for pro&#64257;ling boar semen samples]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2008</year>
<volume>70</volume>
<page-range>1374-6</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dyck]]></surname>
<given-names><![CDATA[M.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Foxcroft]]></surname>
<given-names><![CDATA[G.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Novak]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz-Sanchez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Patterson]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Dixon]]></surname>
<given-names><![CDATA[W.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biological markers of boar fertility]]></article-title>
<source><![CDATA[Reprod. Domest. Anim.]]></source>
<year>2011</year>
<volume>46</volume>
<page-range>55-8</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dzieko&#324;ska]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Fraser]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Strze&#380;ek]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of different storage temperatures on the metabolic activity of spermatozoa following liquid storage of boar semen]]></article-title>
<source><![CDATA[J. Anim. Feed. Sci.]]></source>
<year>2009</year>
<volume>18</volume>
<page-range>638-49</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Estrada]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera-del-Álamo]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Gil]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Yeste]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The addition of reduced glutathione to cryopreservation media induces changes in the structure of motile subpopulations of frozen-thawed boar sperm]]></article-title>
<source><![CDATA[Cryobiology]]></source>
<year>2017</year>
<volume>78</volume>
<page-range>56-64</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Novell]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Gil]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The degree of resistance to freezing-thawing is related to specific changes in the structures of motile sperm subpopulations and mitochondrial activity in boar spermatozoa]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2009</year>
<volume>72</volume>
<page-range>784-97</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Taberner]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rigau]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Miró]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Gil]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of freezing/thawing on motile sperm subpopulations of boar and donkey ejaculates]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2008</year>
<volume>70</volume>
<page-range>936-45</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flowers]]></surname>
<given-names><![CDATA[W.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of boars for efficient semen production]]></article-title>
<source><![CDATA[J. Reprod. Fertil. Suppl]]></source>
<year>1997</year>
<volume>52</volume>
<page-range>67-78</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fraser]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dzieko&#324;ska]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Strzezek]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Strzezek]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dialysis of boar semen prior to freezing thawing: its effects on post-thaw sperm characteristics]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2007</year>
<volume>67</volume>
<page-range>994-1003</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gadea]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm factors related to in vitro and in vivo porcine fertility]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>63</volume>
<page-range>431-44</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gerfen]]></surname>
<given-names><![CDATA[R.W.]]></given-names>
</name>
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[B.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Cotta]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wheeler]]></surname>
<given-names><![CDATA[M.B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of the semen characteristics of fengjing, meishan and Yorkshire boars]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1994</year>
<volume>41</volume>
<page-range>461-9</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gil]]></surname>
<given-names><![CDATA[M.C.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Herreros]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Barón]]></surname>
<given-names><![CDATA[F.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Aparicio]]></surname>
<given-names><![CDATA[I.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Marín]]></surname>
<given-names><![CDATA[L.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morphometry of porcine spermatozoa and its functional signi&#64257;cance in relation with the motility parameters in fresh semen]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2009</year>
<volume>71</volume>
<page-range>254-63</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grieblová]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pintus]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ros-Santaella]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Integrity of head and tail plasmalemma is associated with different kinetic variables in boar sper]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2017</year>
<volume>184</volume>
<page-range>218-27</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoflack]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Opsomer]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rijsselaere]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Van-Soom]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Maes]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[de-Kruif]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Duchatea]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of computer-assisted sperm motility analysis parameters in semen from Belgian blue and Holstein-Friesian bull]]></article-title>
<source><![CDATA[Reprod. Domest. Anim]]></source>
<year>2007</year>
<volume>42</volume>
<page-range>153-61</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holt]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Holt]]></surname>
<given-names><![CDATA[W.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Moore]]></surname>
<given-names><![CDATA[H.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Reed]]></surname>
<given-names><![CDATA[H.C]]></given-names>
</name>
<name>
<surname><![CDATA[Curnock]]></surname>
<given-names><![CDATA[R.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Objectively measured boar sperm motility parameters correlate with the outcomes of on-farm inseminations: results of two fertility trials]]></article-title>
<source><![CDATA[J. Androl.]]></source>
<year>1997</year>
<volume>18</volume>
<page-range>312-23</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[W.V.]]></surname>
<given-names><![CDATA[Holt]]></given-names>
</name>
<name>
<surname><![CDATA[Van-Look]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Concepts in sperm heterogeneity, sperm selection and sperm competition as biological foundations for laboratory test of semen quality]]></article-title>
<source><![CDATA[Reproduction]]></source>
<year>2004</year>
<volume>127</volume>
<page-range>527-35</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaw&#281;cka]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pietruszka]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jacyno]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Czarnecki]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Kamyczek]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality of semen of young boars of the breeds Pietrain and Duroc and their reciprocal crosses]]></article-title>
<source><![CDATA[Arch. Tierz.]]></source>
<year>2008</year>
<volume>51</volume>
<page-range>42-54</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kennedy]]></surname>
<given-names><![CDATA[B.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Wilkins]]></surname>
<given-names><![CDATA[J.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Boar, breed and environmental factors influencing semen characteristics of boars used in artificial insemination]]></article-title>
<source><![CDATA[Can. J. Anim. Sci.]]></source>
<year>1983</year>
<volume>64</volume>
<page-range>833-43</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knecht]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[&#346;rodo&#324;]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Duzi&#324;ski]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The influence of boar breed and season on semen parameters]]></article-title>
<source><![CDATA[S. Afr. J. Anim. Sci.]]></source>
<year>2014</year>
<volume>44</volume>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knecht]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[&#346;rodo&#324;]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Szulc]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Duzi&#324;ski]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of photoperiod on selected parameters of boar semen.]]></article-title>
<source><![CDATA[Liv. Sci.]]></source>
<year>2013</year>
<volume>157</volume>
<page-range>364-71</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knox]]></surname>
<given-names><![CDATA[R.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of swine reproductive technologies on pig and global food production]]></article-title>
<source><![CDATA[Current and future reproductive technologies and world food production]]></source>
<year>2014</year>
<page-range>131-60</page-range><publisher-loc><![CDATA[NY, USA ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kondracki]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Iwanina]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Wysoki&#324;ska]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Huszno]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative analysis of Duroc and Pietrain boar sperm morphology]]></article-title>
<source><![CDATA[Acta Vet. Brno]]></source>
<year>2012</year>
<volume>81</volume>
<page-range>195-9</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kunavongkrit]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Suriyasomboom]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lundeheim]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Heard]]></surname>
<given-names><![CDATA[T.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Einarsson]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management and sperm production of boars under differing environmental conditions]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>63</volume>
<page-range>657-67</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Langendijk]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Soede]]></surname>
<given-names><![CDATA[N.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kemp]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uterine activity, sperm transport, and the role of boar stimuli around insemination in sows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>63</volume>
<page-range>500-13</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leahy]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Gadella]]></surname>
<given-names><![CDATA[B.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm surface changes and physiological consequences induced by sperm handling and storage]]></article-title>
<source><![CDATA[Reproduction]]></source>
<year>2011</year>
<volume>142</volume>
<page-range>759-78</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[D.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Clarke]]></surname>
<given-names><![CDATA[G.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Gordon-Baker]]></surname>
<given-names><![CDATA[H.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between sperm motility assessed with the Hamilton-Thorn motility analyzer and fertilization rates in vitro.]]></article-title>
<source><![CDATA[J. Androl.]]></source>
<year>1991</year>
<volume>12</volume>
<page-range>231-9</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[D.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Clarke]]></surname>
<given-names><![CDATA[G.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Gordon-Baker]]></surname>
<given-names><![CDATA[H.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between sperm motility assessed with the Hamilton-Thorn motility analyzer and fertilization rates in vitro]]></article-title>
<source><![CDATA[J. Androl.]]></source>
<year>1991</year>
<volume>12</volume>
<page-range>231-9</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martinez-Alborcia]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Valverde]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Parrilla]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Vazquez]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Roca]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Detrimental effects of non-functional spermatozoa on the freezability of functional spermatozoa from boar ejaculate]]></article-title>
<source><![CDATA[PLoS ONE]]></source>
<year>2012</year>
<volume>7</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oh]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[Y.J.]]></given-names>
</name>
<name>
<surname><![CDATA[You]]></surname>
<given-names><![CDATA[Y.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohamed]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pang]]></surname>
<given-names><![CDATA[M.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Capacitation status of stored boar spermatozoa is related to litter size of sows]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2010</year>
<volume>121</volume>
<page-range>131-8</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oh]]></surname>
<given-names><![CDATA[S.H.]]></given-names>
</name>
<name>
<surname><![CDATA[See]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[T.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Galvin]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimates of genetic correlations between production and semen traits in boar]]></article-title>
<source><![CDATA[J. Anim. Sci.]]></source>
<year>2006</year>
<volume>19</volume>
<page-range>160-4</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Okere]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Joseph]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ezekwe]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonal and genotype variations in libido, semen production and quality in artificial insemination boars]]></article-title>
<source><![CDATA[J. Anim. Vet. Adv.]]></source>
<year>2005</year>
<volume>4</volume>
<page-range>885-8</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quintero-Moreno]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rigau]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Gil]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Regression analyses and motile sperm subpopulation structure study as improving tools in boar semen quality analysis]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2004</year>
<volume>61</volume>
<page-range>673-90</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[J.A.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Buhr]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of genetic selection on management of boar replacement]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>63</volume>
<page-range>668-78</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Savi&#263;]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Petrovi&#263;]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Radojkovi&#263;]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Radovi&#263;]]></surname>
<given-names><![CDATA[&#268;.]]></given-names>
</name>
<name>
<surname><![CDATA[Parunovi&#263;]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of breed, boar and season on some properties of sperm]]></article-title>
<source><![CDATA[Biotechnol. Anim. Husb.]]></source>
<year>2013</year>
<volume>29</volume>
<page-range>299-310</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schinckel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[R.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Pumfrey]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Zimmerman]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Testicular growth in boars of different genetic lines and its relationship to reproductive performance]]></article-title>
<source><![CDATA[J. Anim. Sci.]]></source>
<year>1983</year>
<volume>56</volume>
<page-range>1065-76</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schulze]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Buder]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rüdiger]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Beyerbach]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Waberski]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influences on semen traits used for selection of young AI boars]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2014</year>
<volume>148</volume>
<page-range>164-70</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sellés]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gadea]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Romar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Matás]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of in vitro fertilizing capacity to evaluate the freezing procedures of boar semen and to predict the subsequent fertility]]></article-title>
<source><![CDATA[Reprod. Domest. Anim.]]></source>
<year>2003</year>
<volume>38</volume>
<page-range>66-72</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smital]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects influencing boar semen]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2009</year>
<volume>110</volume>
<page-range>335-46</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smital]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[De-Sousa]]></surname>
<given-names><![CDATA[L.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohsen]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Differences among breeds and manifestation of heterosis in AI boar sperm output]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2004</year>
<volume>80</volume>
<page-range>121-30</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sonderman]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Luebbe]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Semen production and fertility issues related to differences in genetic lines of boars]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2008</year>
<volume>70</volume>
<page-range>1380-3</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Swierstra]]></surname>
<given-names><![CDATA[E.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparison of regular ejaculation with sexual rest on semen characteristics and reproductive organ weights in young boars.]]></article-title>
<source><![CDATA[J. Anim. Sci.]]></source>
<year>1974</year>
<volume>39</volume>
<page-range>575-81</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[T&#259;p&#259;loag&#259;]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
<name>
<surname><![CDATA[&#536;onea]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Iancu]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mitr&#259;nescu]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Researches regarding age, breed and collecting season influence in quality and quantity boars semen]]></article-title>
<source><![CDATA[Sci. Pap. Ser. D. Anim. Sci.]]></source>
<year>2013</year>
<volume>56</volume>
<page-range>161-5</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tardif]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Laforest]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Cormier]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Bailey]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The importance of porcine sperm parameters on fertility in vivo]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1999</year>
<volume>52</volume>
<page-range>447-59</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tsakmakidis]]></surname>
<given-names><![CDATA[I.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lymberopoulos]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Khalifa]]></surname>
<given-names><![CDATA[T.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between sperm quality traits and field-fertility of porcine semen]]></article-title>
<source><![CDATA[J. Vet. Sci.]]></source>
<year>2010</year>
<volume>11</volume>
<page-range>151-4</page-range></nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Verstegen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Iguer-Ouada]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Onclin]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Computer assisted semen analyzers in andrology research and veterinary practice]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2002</year>
<volume>57</volume>
<page-range>149-79</page-range></nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wasilewska]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fraser]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Boar variability in sperm cryo-tolerance after cooling of semen in different long-term extenders at various temperatures]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2017</year>
<volume>185</volume>
<page-range>161-73</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="book">
<collab>WHO (World Health Organization)</collab>
<source><![CDATA[Laboratory manual for the examination and processing of human semen]]></source>
<year>2010</year>
<edition>5</edition>
<publisher-loc><![CDATA[Cambridge, GBR ]]></publisher-loc>
<publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wolf]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Smital]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects in genetic evaluation for semen traits in Czech Large White and Czech Landrace boars]]></article-title>
<source><![CDATA[Czech J. Anim. Sci.]]></source>
<year>2009</year>
<volume>54</volume>
<page-range>349-58</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wysoki&#324;ska]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kondracki]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kowalewski]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Adamiak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Muczy&#324;ska]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of seasonal factors on the ejaculate properties of crossbred Duroc x Pietrain and Pietrain x Duroc boars as well as purebred Duroc and Pietrain boars]]></article-title>
<source><![CDATA[Bull. Vet. Inst. Pulawy]]></source>
<year>2009</year>
<volume>53</volume>
<page-range>677-85</page-range></nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yeste]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo-Martín]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Boar spermatozoa within the Uterus]]></article-title>
<source><![CDATA[Boar reproduction: Fundamentals and new biotechnological trends]]></source>
<year>2013</year>
<page-range>101-68</page-range><publisher-loc><![CDATA[Berlin, GER. ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B61">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[&#381;aja]]></surname>
<given-names><![CDATA[I.&#381;.]]></given-names>
</name>
<name>
<surname><![CDATA[Samard&#382;ija]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Vince]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Maji&#263;-Bali&#263;]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Vili&#263;]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[&#272;uri&#269;i&#263;]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Milinkovi&#263;-Tur]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of boar breeds or hybrid genetic composition on semen quality and seminal plasma biochemical variables]]></article-title>
<source><![CDATA[Anim. Reprod. Sci.]]></source>
<year>2016</year>
<volume>164</volume>
<page-range>169-76</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
