<?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>0034-7744</journal-id>
<journal-title><![CDATA[Revista de Biología Tropical]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. biol. trop]]></abbrev-journal-title>
<issn>0034-7744</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-77442024000100020</article-id>
<article-id pub-id-type="doi">10.15517/rev.biol.trop..v72i1.56736</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Digestive proteases of Morelet&#8217;s crocodile (Crocodylus moreletii) in three life stages]]></article-title>
<article-title xml:lang="es"><![CDATA[Proteasas digestivas del cocodrilo de pantano (Crocodylus moreletii) en tres etapas de vida]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Rodríguez]]></surname>
<given-names><![CDATA[Manuel-Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rangel-Mendoza]]></surname>
<given-names><![CDATA[Judith-Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Marín]]></surname>
<given-names><![CDATA[Emyr-Saul]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-González]]></surname>
<given-names><![CDATA[Carlos-Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Luna]]></surname>
<given-names><![CDATA[Marco-Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maytorena-Verdugo]]></surname>
<given-names><![CDATA[Claudia-Ivette]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA)-DACBIOL ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco Centro de Investigación para la Conservación de Especies Amenazadas (CICEA)-DACBIOL ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Baja California (UABC) Instituto de Investigaciones Oceanológicas ]]></institution>
<addr-line><![CDATA[ Baja California]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Politécnica del Centro  ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>72</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442024000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0034-77442024000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0034-77442024000100020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Morelet&#8217;s crocodile (Crocodylus moreletii) is a species distributed in the Mexican southeast and threatened due to multiple pressures.  Objective:  To characterize the digestive proteases in the acid phase (stomach) and alkaline phase (intestine) of three life stages of C. moreletii in captivity (hatchling, juvenile, and adult).  Methods: Total alkaline and acid protease activities were quantified using casein and haemoglobin as substrates. Trypsin, chymotrypsin, leucine aminopeptidase, and elastase activities were quantified using synthetic substrates. Protease profiles were analysed by SDS-PAGE and Native-PAGE.  Results:  The specific activity of acid and alkaline proteases showed differences between the three stages, finding the highest activity in the juveniles. Trypsin, chymotrypsin, leucine aminopeptidase, and elastase activities were higher in hatchlings. There were differences in optimum pH and temperature of acid and alkaline proteases, trypsin, and leucine aminopeptidase between the three stages, demonstrating the diversification of the enzymes according to different stages, as well as the presence of specific isoforms in each stage of C. moreletii. The acid phase zymogram showed four bands with pepsin-like acid activity in the hatchling and juvenile crocodile, while in the adult only two of the four bands were detected. The alkaline zymogram showed that the hatchling had the highest number of activity bands compared to the other stages, corresponding to the high specific activity reported in the alkaline phase.  Conclusions: Digestive proteases of Morelet&#8217;s crocodile differ in their biochemical characteristics and the number of proteases between hatchling, juvenile, and adult. This could help in the future design of balanced diets as well to the sustainable management and production of this species.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  El cocodrilo de pantano (Crocodylus moreletii) es una especie distribuida en el sureste mexicano y amenazada por múltiples presiones.  Objetivo:  Caracterizar las proteasas digestivas en fase ácida (estómago) y fase alcalina (intestino) en tres etapas de vida de C. moreletii en cautiverio (cría, juvenil y adulto).  Métodos:  Se cuantificaron las actividades de proteasas alcalinas y ácidas totales utilizando caseína y hemoglobina como sustrato. Las actividades de tripsina, quimotripsina, leucina aminopeptidasa y elastasa se cuantificaron utilizando sustratos sintéticos. Los perfiles de proteasas se analizaron mediante SDS-PAGE y PAGE nativa.  Resultados:  La actividad específica de las proteasas ácidas y alcalinas mostró diferencias entre las tres tallas, encontrándose la mayor actividad en el estadio juvenil. Las actividades de tripsina, quimotripsina, leucina aminopeptidasa y elastasa fueron mayores en las crías. Hubo diferencias en el pH y temperatura óptimos de las proteasas ácidas y alcalinas, tripsina y leucina aminopeptidasa entre las tres tallas, demostrando la diversificación de las enzimas según las diferentes tallas, así como la presencia de isoformas específicas en cada talla de C. moreletii. El zimograma en fase ácida mostró cuatro bandas con actividad similar a pepsina en la cría y juvenil, mientras que en el adulto solo se detectaron dos de las cuatro bandas. El zimograma alcalino mostró que la cría tuvo el mayor número de bandas de actividad en comparación con las otras tallas, correspondiente a la alta actividad específica reportada en la fase alcalina.  Conclusiones:  Las proteasas digestivas del cocodrilo de pantano presentaron características bioquímicas y en número de proteasas diferentes entre cría, juvenil y adulto. Esto podría ayudar en el futuro diseño de dietas balanceadas, así como al manejo y producción sustentable de esta especie.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[pepsin]]></kwd>
<kwd lng="en"><![CDATA[trypsin]]></kwd>
<kwd lng="en"><![CDATA[leucine aminopeptidase]]></kwd>
<kwd lng="en"><![CDATA[hatchling]]></kwd>
<kwd lng="en"><![CDATA[juvenile]]></kwd>
<kwd lng="en"><![CDATA[adult.]]></kwd>
<kwd lng="es"><![CDATA[pepsina]]></kwd>
<kwd lng="es"><![CDATA[tripsina]]></kwd>
<kwd lng="es"><![CDATA[leucina aminopeptidasa]]></kwd>
<kwd lng="es"><![CDATA[cría]]></kwd>
<kwd lng="es"><![CDATA[juvenil]]></kwd>
<kwd lng="es"><![CDATA[adulto.]]></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[Alcon]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bdolah]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Increase of proteolytic activity and synthetic capacity of the pancreas in snakes after feeding]]></article-title>
<source><![CDATA[Comparative Biochemistry &amp; Physiology A]]></source>
<year>1975</year>
<volume>50</volume>
<page-range>627-31</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anson]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The estimation of pepsin, trypsin, papain, and cathepsin with hemoglobin]]></article-title>
<source><![CDATA[Journal of General Physiology]]></source>
<year>1938</year>
<volume>22</volume>
<page-range>79-89</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhardwaj]]></surname>
<given-names><![CDATA[S. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Alcohol and gastrointestinal tract function]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Watson]]></surname>
<given-names><![CDATA[R. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bioactive food as dietary interventions for liver and gastrointestinal disease]]></source>
<year>2013</year>
<page-range>81-118</page-range><publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bradford]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A rapid and sensitive method for the quantization of microgram quantities of protein utilizing the principle of protein-dye binding]]></article-title>
<source><![CDATA[Analytical Biochemistry]]></source>
<year>1976</year>
<volume>72</volume>
<page-range>248-54</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Casas-Andreu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Barrios-Quiroz]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Macip-Ríos]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reproducción en cautiverio de Crocodylus moreletii en Tabasco, México]]></article-title>
<source><![CDATA[Revista Mexicana de Biodiversidad]]></source>
<year>2011</year>
<volume>82</volume>
<page-range>261-73</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chikwati]]></surname>
<given-names><![CDATA[E. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sahlmann]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Holm]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Penn]]></surname>
<given-names><![CDATA[M. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Krogdahl]]></surname>
<given-names><![CDATA[Å.]]></given-names>
</name>
<name>
<surname><![CDATA[Bakke]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Alterations in digestive enzyme activities during the development of diet-induced enteritis in Atlantic salmon, Salmo salar L]]></article-title>
<source><![CDATA[Aquaculture]]></source>
<year>2013</year>
<volume>402-403</volume>
<page-range>28-37</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clarks]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Macdonald]]></surname>
<given-names><![CDATA[N. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Stark]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metabolism in marine flatfish-III. Measurement of elastase activity in the digestive tract of dover sole (Solea solea L)]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part B: Comparative Biochemistry]]></source>
<year>1985</year>
<volume>81</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>695-700</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coulson]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Coulson]]></surname>
<given-names><![CDATA[T. D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of temperature on the rates of digestion, amino acid absorption and assimilation in the alligator]]></article-title>
<source><![CDATA[Comparative Biochemistry &amp; Physiology Part A: Physiology]]></source>
<year>1986</year>
<volume>83</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>585-8</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Díaz-López]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Moyano-López]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Alarcón-López]]></surname>
<given-names><![CDATA[F. J.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Carreño]]></surname>
<given-names><![CDATA[F. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Navarrete del Toro]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of fish acid proteases by substrate-gel electrophoresis]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology]]></source>
<year>1998</year>
<volume>121</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>369-77</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Diefenbach]]></surname>
<given-names><![CDATA[C. O. da C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gastric function in Caiman crocodilus (Crocodylia: Reptilia)-I. Rate of gastric digestion and gastric motility as a function of temperature]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part A: Physiology]]></source>
<year>1974</year>
<volume>51</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>259-65</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fox]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Musacchia]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Notes on the pH of the digestive tract of Chrysemys picta]]></article-title>
<source><![CDATA[Copeia]]></source>
<year>1959</year>
<volume>1959</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>337-9</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Carreño]]></surname>
<given-names><![CDATA[F. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dimes]]></surname>
<given-names><![CDATA[L. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Haard]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Substrate-Gel electrophoresis for composition and molecular weight of proteinases or proteinaceous proteinase inhibitors]]></article-title>
<source><![CDATA[Analytical Biochemistry]]></source>
<year>1993</year>
<volume>214</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>65-9</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Carreño]]></surname>
<given-names><![CDATA[F. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Cortés]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Haard]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Enzymes with peptidase and proteinase activity from the digestive systems of a freshwater and a marine decapod]]></article-title>
<source><![CDATA[Journal of Agricultural and Food Chemistry]]></source>
<year>1994</year>
<volume>42</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1456-61</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gildberg]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Olsen]]></surname>
<given-names><![CDATA[R. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Bjarnason]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Catalytic properties and chemical composition of pepsins from Atlantic cod (Gadus morhua)]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part B: Comparative Biochemistry]]></source>
<year>1990</year>
<volume>96</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>323-30</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Huchzermeyer]]></surname>
<given-names><![CDATA[F. W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Crocodiles biology, husbandry and diseases]]></source>
<year>2003</year>
<publisher-loc><![CDATA[Wallinford ]]></publisher-loc>
<publisher-name><![CDATA[CABI Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ishida]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ogawa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mori]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Mega]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Determination and characterization of succinyl tri-alanine p-nitroanilide hydrolyzing metalloendopeptidase in serum]]></article-title>
<source><![CDATA[Enzyme]]></source>
<year>1987</year>
<volume>37</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>202-7</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jesús&#8209;De la Cruz]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez&#8209;González]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales&#8209;Contreras]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila&#8209;Fernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fish trypsins: potential applications in biomedicine and prospects for production]]></article-title>
<source><![CDATA[3 Biotech]]></source>
<year>2018</year>
<volume>8</volume>
<page-range>186</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Klomklao]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Digestive proteinases from marine organisms and their applications]]></article-title>
<source><![CDATA[Songklanakarin Journal of Science and Technology]]></source>
<year>2008</year>
<volume>30</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>37-46</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maroux]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Louvard]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Barath]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The aminopeptidase from hog intestinal brush border]]></article-title>
<source><![CDATA[Biochimica et Biophysica Acta (BBA)-Enzymology]]></source>
<year>1973</year>
<volume>321</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>282-95</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreira]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Novillo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Eastman]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Barrera-Oro]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Degree of herbivory and intestinal morphology in nine notothenioid fishes from the western Antarctic Peninsula]]></article-title>
<source><![CDATA[Polar Biology]]></source>
<year>2020</year>
<volume>43</volume>
<page-range>535-44</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parachú-Marcó]]></surname>
<given-names><![CDATA[M. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Piña]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Larriera]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Food conversion rate (FCR) in Caiman latirostris resulted more efficient at higher temperatures]]></article-title>
<source><![CDATA[Interciencia]]></source>
<year>2009</year>
<volume>34</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>428-31</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez-Gómez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Naranjo-López]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Tur]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Vega-Ramírez]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influencia de dos tipos de dietas sobre la talla y el peso corporal en neonatos de Crocodylus acutus Cuvier, 1807 (Crocodylidae: Crocodylia) del zoocriadero de Manzanillo, Cuba]]></article-title>
<source><![CDATA[Acta Zoológica Mexicana]]></source>
<year>2009</year>
<volume>25</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>151-60</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Platt]]></surname>
<given-names><![CDATA[S. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rainwater]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Finger]]></surname>
<given-names><![CDATA[A. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Thorbjarnarson]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[McMurry]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Food habits, ontogenetic dietary partitioning and observations of foraging behaviour of Morelet&#8217;s crocodile (Crocodylus moreletii) in Northern Belize]]></article-title>
<source><![CDATA[The Herpetological Journal]]></source>
<year>2006</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>281-90</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Platt]]></surname>
<given-names><![CDATA[S. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rainwater]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Snider]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Garel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[McMurry]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Consumption of large mammals by Crocodylus moreletii: field observations of necrophagy and interspecific kleptoparasitism]]></article-title>
<source><![CDATA[The Southwestern Naturalist]]></source>
<year>2007</year>
<volume>52</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>310-7</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Platt]]></surname>
<given-names><![CDATA[S. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Sigler]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rainwater]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morelet&#8217;s crocodile Crocodylus moreletii]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Manolis]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Crocodiles. Status Survey and Conservation Action Plan]]></source>
<year>2010</year>
<edition>3</edition>
<page-range>79-83</page-range><publisher-loc><![CDATA[Australia ]]></publisher-loc>
<publisher-name><![CDATA[Crocodile Specialist Group]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Radloff]]></surname>
<given-names><![CDATA[F. G. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Hobson]]></surname>
<given-names><![CDATA[K. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Leslie]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterising ontogenetic niche shifts in Nile crocodile using stable isotope (&#948;13C, &#948;15N) analyses of scute keratin]]></article-title>
<source><![CDATA[Isotopes in Environmental and Health Studies]]></source>
<year>2012</year>
<volume>48</volume>
<page-range>439-56</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rangel-Mendoza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-González]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Guerrero-Zárate]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zenteno-Ruiz]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Luna]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Digestive proteases and in vitro protein digestibility of feed ingredients for the Central American river turtle, Dermatemys mawii]]></article-title>
<source><![CDATA[Journal of Animal Physiology and Animal Nutrition]]></source>
<year>2018</year>
<volume>102</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1102-10</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rawlings]]></surname>
<given-names><![CDATA[N. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Salvesen]]></surname>
<given-names><![CDATA[G. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Handbook of Proteolytic Enzymes]]></source>
<year>2013</year>
<edition>3</edition>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ross]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Honeyfield]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Experimental induction of vitamin deficiency with diet in captive alligators]]></article-title>
<source><![CDATA[Crocodiles, Proceedings of the 19 th Working Meeting of the Crocodile Specialist Group]]></source>
<year>2008</year>
<page-range>181</page-range><publisher-name><![CDATA[IUCN-The World Conservation Union]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Simpson]]></surname>
<given-names><![CDATA[B. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Digestive proteinases from marine animals]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Haard]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Seafood Enzymes: Utilization and Influence on Postharvest Seafood Quality]]></source>
<year>2000</year>
<page-range>531-40</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Marcel Dekker]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solovyev]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kashinskaya]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gisbert]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A meta-analysis for assessing the contributions of trypsin and chymotrypsin as the two major endoproteases in protein hydrolysis in fish intestine]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part A: Molecular &amp; Integrative Physiology]]></source>
<year>2023</year>
<volume>278</volume>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[J. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Du]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Qian]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Jing]]></surname>
<given-names><![CDATA[M. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Weng]]></surname>
<given-names><![CDATA[X. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Distribution and characteristics of endogenous digestive enzymes in the red-eared slider turtle, Trachemys scripta elegans]]></article-title>
<source><![CDATA[Comparative Biochemistry and Physiology Part A: Molecular &amp; Integrative Physiology]]></source>
<year>2007</year>
<volume>147</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1125-9</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tracy]]></surname>
<given-names><![CDATA[C. R.]]></given-names>
</name>
<name>
<surname><![CDATA[McWhorter]]></surname>
<given-names><![CDATA[T. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gienger]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Starck]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Medley]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Manolis]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Webb]]></surname>
<given-names><![CDATA[G. J. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Christian]]></surname>
<given-names><![CDATA[K. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Alligators and crocodiles have high paracellular absorption of nutrients, but differ in digestive morphology and physiology]]></article-title>
<source><![CDATA[Integrative and Comparative Biology]]></source>
<year>2015</year>
<volume>55</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>986-1004</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Venesky]]></surname>
<given-names><![CDATA[M. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hanlon]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lynch]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Parris]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rohr]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimal digestion theory does not predict the effect of pathogens on intestinal plasticity]]></article-title>
<source><![CDATA[Biology Letters]]></source>
<year>2013</year>
<volume>9</volume>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walter]]></surname>
<given-names><![CDATA[H. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Proteinases: methods with hemoglobin, casein and azocoll as substrates]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Bergmeyer]]></surname>
<given-names><![CDATA[H. U.]]></given-names>
</name>
</person-group>
<source><![CDATA[Methods of Enzymatic Analysis]]></source>
<year>1984</year>
<volume>5</volume>
<page-range>270-7</page-range><publisher-name><![CDATA[Verlag Chemie]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Whitaker]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Andrews]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Madras croc bank: an update]]></article-title>
<source><![CDATA[Crocodiles. Proceedings of the 14th Working Meeting of the Crocodile Specialist Group]]></source>
<year>1998</year>
<page-range>4012-406</page-range><publisher-name><![CDATA[IUCN-The World Conservation Union]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Whitcomb]]></surname>
<given-names><![CDATA[D. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lowe]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Human pancreatic digestive enzymes]]></article-title>
<source><![CDATA[Digestive Diseases and Sciences]]></source>
<year>2007</year>
<volume>52</volume>
<page-range>1-17</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhalka]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bdolah]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dietary regulation of digestive enzyme levels in the water snake, Natrix tessellate]]></article-title>
<source><![CDATA[The Journal of Experimental Zoology]]></source>
<year>1987</year>
<volume>243</volume>
<page-range>9-13</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
