Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs

ABSTRACT The effects of purging nut (Jatropha curcas, JCO) supplementation (0, 2, 4, and 6%, DM basis of diet) on carcass traits, tissue composition and conjugated linoleic acids (CLA) concentration in muscle was evaluated in twenty intact male lambs fed a finishing diet during 56 d. The linoleic ac...

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Autores principales:	Estrada-Angulo,Alfredo, Félix-Bernal,José A., Angulo-Escalante,Miguel A., Muy-Rangel,Dolores, Castro-Pérez,Beatriz I., Ríos,Francisco G., Cerrillo,Andrea, Zinn,Richard A., Plascencia,Alejandro
Lenguaje:	English
Publicado:	Universidad Austral de Chile. Facultad de Ciencias Veterinarias 2017
Materias:	Jatropha curcas supplemental oil lambs carcass conjugated linoleic acid
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100102
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spelling	oai:scielo:S0719-813220170001001022019-11-28Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambsEstrada-Angulo,AlfredoFélix-Bernal,José A.Angulo-Escalante,Miguel A.Muy-Rangel,DoloresCastro-Pérez,Beatriz I.Ríos,Francisco G.Cerrillo,AndreaZinn,Richard A.Plascencia,Alejandro Jatropha curcas supplemental oil lambs carcass conjugated linoleic acid ABSTRACT The effects of purging nut (Jatropha curcas, JCO) supplementation (0, 2, 4, and 6%, DM basis of diet) on carcass traits, tissue composition and conjugated linoleic acids (CLA) concentration in muscle was evaluated in twenty intact male lambs fed a finishing diet during 56 d. The linoleic acid proportion in JCO was 50%. Lambs were harvested at a final weight of 54.03±2.9 kg. There were no treatment effects on hot carcass weight (HCW), longissimus muscle (LM) area nor kidney-pelvic fat. However, as JCO supplementation increased, dressing percentage was decreased and fat thickness was increased. Increasing JCO in diet decreases the proportion of muscle and increases the proportion of fat in whole shoulder clod. Content of stearic acid (C18:0) in LM was not affected by JCO. However, JCO linearly increased total CLA, and hence, the CLA:C18:0 ratio. Empty body or visceral mass were not affected by JCO. Increasing JCO in diet increases visceral fat mainly through increased mesenteric fat. It is concluded that supplemental JCO does not negatively affect HCW and LM area, and represents a viable alternative for increasing CLA concentration in meat of finishing feedlot lambs.info:eu-repo/semantics/openAccessUniversidad Austral de Chile. Facultad de Ciencias VeterinariasAustral journal of veterinary sciences v.49 n.1 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100102en10.4067/s0719-81322017000100001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Jatropha curcas supplemental oil lambs carcass conjugated linoleic acid
spellingShingle	Jatropha curcas supplemental oil lambs carcass conjugated linoleic acid Estrada-Angulo,Alfredo Félix-Bernal,José A. Angulo-Escalante,Miguel A. Muy-Rangel,Dolores Castro-Pérez,Beatriz I. Ríos,Francisco G. Cerrillo,Andrea Zinn,Richard A. Plascencia,Alejandro Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
description	ABSTRACT The effects of purging nut (Jatropha curcas, JCO) supplementation (0, 2, 4, and 6%, DM basis of diet) on carcass traits, tissue composition and conjugated linoleic acids (CLA) concentration in muscle was evaluated in twenty intact male lambs fed a finishing diet during 56 d. The linoleic acid proportion in JCO was 50%. Lambs were harvested at a final weight of 54.03±2.9 kg. There were no treatment effects on hot carcass weight (HCW), longissimus muscle (LM) area nor kidney-pelvic fat. However, as JCO supplementation increased, dressing percentage was decreased and fat thickness was increased. Increasing JCO in diet decreases the proportion of muscle and increases the proportion of fat in whole shoulder clod. Content of stearic acid (C18:0) in LM was not affected by JCO. However, JCO linearly increased total CLA, and hence, the CLA:C18:0 ratio. Empty body or visceral mass were not affected by JCO. Increasing JCO in diet increases visceral fat mainly through increased mesenteric fat. It is concluded that supplemental JCO does not negatively affect HCW and LM area, and represents a viable alternative for increasing CLA concentration in meat of finishing feedlot lambs.
author	Estrada-Angulo,Alfredo Félix-Bernal,José A. Angulo-Escalante,Miguel A. Muy-Rangel,Dolores Castro-Pérez,Beatriz I. Ríos,Francisco G. Cerrillo,Andrea Zinn,Richard A. Plascencia,Alejandro
author_facet	Estrada-Angulo,Alfredo Félix-Bernal,José A. Angulo-Escalante,Miguel A. Muy-Rangel,Dolores Castro-Pérez,Beatriz I. Ríos,Francisco G. Cerrillo,Andrea Zinn,Richard A. Plascencia,Alejandro
author_sort	Estrada-Angulo,Alfredo
title	Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
title_short	Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
title_full	Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
title_fullStr	Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
title_full_unstemmed	Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs
title_sort	effect of oil supplementation extracted from nontoxic purging nut (jatropha curcas l) on carcass traits, tissue composition, muscle cla concentration, and visceral mass of feedlot lambs
publisher	Universidad Austral de Chile. Facultad de Ciencias Veterinarias
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100102
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Effect of oil supplementation extracted from nontoxic purging nut (Jatropha curcas L) on carcass traits, tissue composition, muscle CLA concentration, and visceral mass of feedlot lambs

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