Contributions to the nutrition of the American crocodile Crocodylus acutus (Cuvier, 1807) in captivity
In this work we evaluated the essential amino acid profile of muscle Crocodylus acutus and calculated their chemical score of main proteins used in their diet in captivity. The separation and identification of amino acids was carried out by high performance liquid chromatography coupled to a fluores...
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| Veröffentlicht in: | Latin american journal of aquatic research 2018-03, Vol.46 (1), p.15-19 |
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| creator | Hernandez, Pablo Soria, Hector Farnes, Olimpia Hernandez, Helios Garcia, Rafael Casas, Gustavo Montoya, Cynthia Vega, Fernando |
| description | In this work we evaluated the essential amino acid profile of muscle Crocodylus acutus and calculated their chemical score of main proteins used in their diet in captivity. The separation and identification of amino acids was carried out by high performance liquid chromatography coupled to a fluorescence detector. The calculation of chemical score was obtained by dividing the value of each essential amino acid between the same amino acid of the reference protein. The lowest value of the relationships is the chemical score. The amino acids present in greater quantities in the tail muscle are glutamic acid, lysine and leucine (16.96, 9.84 and 8.87 g amino acid per 100 g of protein, respectively), whereas histidine, methionine and tryptophan (2.99, 2.93 and 0.59 g amino acid per 100 g of protein) were the lowest. The chemical score obtained results showed that the proteins of animal origin, preferably marine fish and supplemented with terrestrial animals ingredients, including beef liver appear to be the most effective. The incorporation of plant proteins in diets for C. acutus does not appear as a viable alternative due to deficiencies in several essential amino acids such as methionine, lysine and threonine. |
| doi_str_mv | 10.3856/vol46-issue1-fulltext-3 |
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The separation and identification of amino acids was carried out by high performance liquid chromatography coupled to a fluorescence detector. The calculation of chemical score was obtained by dividing the value of each essential amino acid between the same amino acid of the reference protein. The lowest value of the relationships is the chemical score. The amino acids present in greater quantities in the tail muscle are glutamic acid, lysine and leucine (16.96, 9.84 and 8.87 g amino acid per 100 g of protein, respectively), whereas histidine, methionine and tryptophan (2.99, 2.93 and 0.59 g amino acid per 100 g of protein) were the lowest. The chemical score obtained results showed that the proteins of animal origin, preferably marine fish and supplemented with terrestrial animals ingredients, including beef liver appear to be the most effective. The incorporation of plant proteins in diets for C. acutus does not appear as a viable alternative due to deficiencies in several essential amino acids such as methionine, lysine and threonine.</description><identifier>ISSN: 0718-560X</identifier><identifier>EISSN: 0718-560X</identifier><identifier>DOI: 10.3856/vol46-issue1-fulltext-3</identifier><language>eng ; spa</language><publisher>Valparaiso: Pontificia Universidad Catolica de Valparaiso, Escuela de Ciencias del Mar</publisher><subject>Amino acids ; Aquatic reptiles ; Captivity ; Crocodiles ; Crocodylia ; Crocodylidae ; Crocodylus acutus ; Crocodylus niloticus ; Diet ; Fish ; FISHERIES ; Fluorescence ; Fluorescence in situ hybridization ; Glutamic acid ; High performance liquid chromatography ; Histidine ; HPLC ; Ictalurus punctatus ; Leucine ; Liquid chromatography ; Liver ; Lysine ; MARINE & FRESHWATER BIOLOGY ; Marine animals ; Marine fish ; Marine fishes ; Mathematical analysis ; Methionine ; Muscles ; Nutrition ; OCEANOGRAPHY ; Proteins ; Threonine ; Tryptophan</subject><ispartof>Latin american journal of aquatic research, 2018-03, Vol.46 (1), p.15-19</ispartof><rights>COPYRIGHT 2018 Pontificia Universidad Catolica de Valparaiso, Escuela de Ciencias del Mar</rights><rights>Copyright Pontificia Universidad Catolica de Valparaiso Mar 2018</rights><rights>This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids></links><search><creatorcontrib>Hernandez, Pablo</creatorcontrib><creatorcontrib>Soria, Hector</creatorcontrib><creatorcontrib>Farnes, Olimpia</creatorcontrib><creatorcontrib>Hernandez, Helios</creatorcontrib><creatorcontrib>Garcia, Rafael</creatorcontrib><creatorcontrib>Casas, Gustavo</creatorcontrib><creatorcontrib>Montoya, Cynthia</creatorcontrib><creatorcontrib>Vega, Fernando</creatorcontrib><title>Contributions to the nutrition of the American crocodile Crocodylus acutus (Cuvier, 1807) in captivity</title><title>Latin american journal of aquatic research</title><addtitle>Lat. Am. J. Aquat. Res</addtitle><description>In this work we evaluated the essential amino acid profile of muscle Crocodylus acutus and calculated their chemical score of main proteins used in their diet in captivity. The separation and identification of amino acids was carried out by high performance liquid chromatography coupled to a fluorescence detector. The calculation of chemical score was obtained by dividing the value of each essential amino acid between the same amino acid of the reference protein. The lowest value of the relationships is the chemical score. The amino acids present in greater quantities in the tail muscle are glutamic acid, lysine and leucine (16.96, 9.84 and 8.87 g amino acid per 100 g of protein, respectively), whereas histidine, methionine and tryptophan (2.99, 2.93 and 0.59 g amino acid per 100 g of protein) were the lowest. The chemical score obtained results showed that the proteins of animal origin, preferably marine fish and supplemented with terrestrial animals ingredients, including beef liver appear to be the most effective. The incorporation of plant proteins in diets for C. acutus does not appear as a viable alternative due to deficiencies in several essential amino acids such as methionine, lysine and threonine.</description><subject>Amino acids</subject><subject>Aquatic reptiles</subject><subject>Captivity</subject><subject>Crocodiles</subject><subject>Crocodylia</subject><subject>Crocodylidae</subject><subject>Crocodylus acutus</subject><subject>Crocodylus niloticus</subject><subject>Diet</subject><subject>Fish</subject><subject>FISHERIES</subject><subject>Fluorescence</subject><subject>Fluorescence in situ hybridization</subject><subject>Glutamic acid</subject><subject>High performance liquid chromatography</subject><subject>Histidine</subject><subject>HPLC</subject><subject>Ictalurus punctatus</subject><subject>Leucine</subject><subject>Liquid chromatography</subject><subject>Liver</subject><subject>Lysine</subject><subject>MARINE & FRESHWATER BIOLOGY</subject><subject>Marine animals</subject><subject>Marine fish</subject><subject>Marine fishes</subject><subject>Mathematical analysis</subject><subject>Methionine</subject><subject>Muscles</subject><subject>Nutrition</subject><subject>OCEANOGRAPHY</subject><subject>Proteins</subject><subject>Threonine</subject><subject>Tryptophan</subject><issn>0718-560X</issn><issn>0718-560X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><sourceid>BENPR</sourceid><recordid>eNpVUl1rHCEUHUoDDWl-Q4S-tJBJ_Rh15nEZ-gWBPrSBvInj6MYwO269umT_fZ3dls1e0Xu5nOOV46mqG4LvWMvF512YGlF7gGxJ7fI0JfuSavamusSStDUX-PHtq_pddQ3wjEtwRgTll5Xrw5yiH3LyYQaUAkpPFs259JYOCu7QWG1s9EbPyMRgwugni_pDtZ8yIG1yKuljn3fexltEWiw_IV_Qepv8zqf9--rC6Qns9b98VT18_fK7_17f__z2o1_d16ahLNXCjNZq1sqB8VEbLBomxwE3XDQdw1xKzDrZamJ1CdYa4xzvOisH2tEls6vq7ngvGG-noJ5DjnMZqH4tGqhFA4rL8zAmy-aF8OFI2MbwJ1tIJwrFjEhMCKUn1FpPVvnZhRS12XgwasWZkI2Qgp6Gn6HKGu3GmzBbV3Q7J9y-IgwZ_GyhHODXTwnWOgOcw-URXj4BIFqnttFvdNwrgtViB3WwgzraQf23g2LsL_ihqrU</recordid><startdate>20180301</startdate><enddate>20180301</enddate><creator>Hernandez, Pablo</creator><creator>Soria, Hector</creator><creator>Farnes, Olimpia</creator><creator>Hernandez, Helios</creator><creator>Garcia, Rafael</creator><creator>Casas, Gustavo</creator><creator>Montoya, Cynthia</creator><creator>Vega, Fernando</creator><general>Pontificia Universidad Catolica de Valparaiso, Escuela de Ciencias del Mar</general><general>Pontificia Universidad Catolica de Valparaiso</general><general>Pontificia Universidad Católica de Valparaíso. 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Am. J. Aquat. Res</addtitle><date>2018-03-01</date><risdate>2018</risdate><volume>46</volume><issue>1</issue><spage>15</spage><epage>19</epage><pages>15-19</pages><issn>0718-560X</issn><eissn>0718-560X</eissn><abstract>In this work we evaluated the essential amino acid profile of muscle Crocodylus acutus and calculated their chemical score of main proteins used in their diet in captivity. The separation and identification of amino acids was carried out by high performance liquid chromatography coupled to a fluorescence detector. The calculation of chemical score was obtained by dividing the value of each essential amino acid between the same amino acid of the reference protein. The lowest value of the relationships is the chemical score. The amino acids present in greater quantities in the tail muscle are glutamic acid, lysine and leucine (16.96, 9.84 and 8.87 g amino acid per 100 g of protein, respectively), whereas histidine, methionine and tryptophan (2.99, 2.93 and 0.59 g amino acid per 100 g of protein) were the lowest. The chemical score obtained results showed that the proteins of animal origin, preferably marine fish and supplemented with terrestrial animals ingredients, including beef liver appear to be the most effective. The incorporation of plant proteins in diets for C. acutus does not appear as a viable alternative due to deficiencies in several essential amino acids such as methionine, lysine and threonine.</abstract><cop>Valparaiso</cop><pub>Pontificia Universidad Catolica de Valparaiso, Escuela de Ciencias del Mar</pub><doi>10.3856/vol46-issue1-fulltext-3</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Amino acids Aquatic reptiles Captivity Crocodiles Crocodylia Crocodylidae Crocodylus acutus Crocodylus niloticus Diet Fish FISHERIES Fluorescence Fluorescence in situ hybridization Glutamic acid High performance liquid chromatography Histidine HPLC Ictalurus punctatus Leucine Liquid chromatography Liver Lysine MARINE & FRESHWATER BIOLOGY Marine animals Marine fish Marine fishes Mathematical analysis Methionine Muscles Nutrition OCEANOGRAPHY Proteins Threonine Tryptophan |
| title | Contributions to the nutrition of the American crocodile Crocodylus acutus (Cuvier, 1807) in captivity |
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