Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep

Background: Little information is available on carcass quality in nulliparous and primiparous ewes of different breeds and genetic groups. Objective: To evaluate the effect of genetic group, pregnancy, age and their interactions on carcass traits, meat quality and fatty acid profile in sheep. Method...

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Autores principales:	Geisa I. F. Esteves, Vanessa Peripolli, João B. G. Costa Jr., Candice B. Tanure, Adriana M. Menezes, Jurandir R. Souza, Liris Kindlein, Guiomar P. Bergmann, Helder Louvandini, Concepta McManus
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2019
Materias:	commercial cuts fat content meat breeds ovines santa ines slaughter age Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/43d8e2172bfb4de4b985b00f75576b7c
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spelling	oai:doaj.org-article:43d8e2172bfb4de4b985b00f75576b7c2021-12-01T19:15:23ZEffects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep2256-295810.17533/udea.rccp.v32n1a03https://doaj.org/article/43d8e2172bfb4de4b985b00f75576b7c2019-03-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/333065https://doaj.org/toc/2256-2958Background: Little information is available on carcass quality in nulliparous and primiparous ewes of different breeds and genetic groups. Objective: To evaluate the effect of genetic group, pregnancy, age and their interactions on carcass traits, meat quality and fatty acid profile in sheep. Methods: Eighty-five Santa Ines ewes and their crosses with Texel, Dorper and Ile de France, aged 12 month were bred with White Dorper rams to assess the influence of pregnancy on carcass composition and meat quality. After weaning, all ewes (nulliparous and primiparous) were fattened for slaughter at 21 months of age. A further 24 six to twenty one-month-old female lambs from the same genetic groups were included in the analysis to determine the fatty acid profile. Results: Genetic group affected muscle and fat weight as well as the eye muscle length. Fat weight, muscle and fat ratios, subcutaneous fat thickness and cooking loss were affected by pregnancy with nulliparous females being fatter. Meat purpose breeds such as Dorper, Texel and Ile de France showed better meat quality compared to the Santa Ines hair breed. Of the 19 identified fatty acids, saturated were present in greater quantities, especially stearic and palmitic. Omega-6 content was influenced by age and pregnancy. Conclusions: Younger and nulliparous females have better carcass quality in terms of fatty acid composition.Geisa I. F. EstevesVanessa PeripolliJoão B. G. Costa Jr.Candice B. TanureAdriana M. MenezesJurandir R. SouzaLiris KindleinGuiomar P. BergmannHelder LouvandiniConcepta McManusUniversidad de Antioquiaarticlecommercial cutsfat contentmeat breedsovinessanta inesslaughter ageAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 32, Iss 1, Pp 21-33 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	commercial cuts fat content meat breeds ovines santa ines slaughter age Animal culture SF1-1100
spellingShingle	commercial cuts fat content meat breeds ovines santa ines slaughter age Animal culture SF1-1100 Geisa I. F. Esteves Vanessa Peripolli João B. G. Costa Jr. Candice B. Tanure Adriana M. Menezes Jurandir R. Souza Liris Kindlein Guiomar P. Bergmann Helder Louvandini Concepta McManus Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
description	Background: Little information is available on carcass quality in nulliparous and primiparous ewes of different breeds and genetic groups. Objective: To evaluate the effect of genetic group, pregnancy, age and their interactions on carcass traits, meat quality and fatty acid profile in sheep. Methods: Eighty-five Santa Ines ewes and their crosses with Texel, Dorper and Ile de France, aged 12 month were bred with White Dorper rams to assess the influence of pregnancy on carcass composition and meat quality. After weaning, all ewes (nulliparous and primiparous) were fattened for slaughter at 21 months of age. A further 24 six to twenty one-month-old female lambs from the same genetic groups were included in the analysis to determine the fatty acid profile. Results: Genetic group affected muscle and fat weight as well as the eye muscle length. Fat weight, muscle and fat ratios, subcutaneous fat thickness and cooking loss were affected by pregnancy with nulliparous females being fatter. Meat purpose breeds such as Dorper, Texel and Ile de France showed better meat quality compared to the Santa Ines hair breed. Of the 19 identified fatty acids, saturated were present in greater quantities, especially stearic and palmitic. Omega-6 content was influenced by age and pregnancy. Conclusions: Younger and nulliparous females have better carcass quality in terms of fatty acid composition.
format	article
author	Geisa I. F. Esteves Vanessa Peripolli João B. G. Costa Jr. Candice B. Tanure Adriana M. Menezes Jurandir R. Souza Liris Kindlein Guiomar P. Bergmann Helder Louvandini Concepta McManus
author_facet	Geisa I. F. Esteves Vanessa Peripolli João B. G. Costa Jr. Candice B. Tanure Adriana M. Menezes Jurandir R. Souza Liris Kindlein Guiomar P. Bergmann Helder Louvandini Concepta McManus
author_sort	Geisa I. F. Esteves
title	Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
title_short	Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
title_full	Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
title_fullStr	Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
title_full_unstemmed	Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
title_sort	effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep
publisher	Universidad de Antioquia
publishDate	2019
url	https://doaj.org/article/43d8e2172bfb4de4b985b00f75576b7c
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Effects of genetic group, pregnancy and age on carcass traits, meat quality and fatty acid profile in female sheep

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