Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine

This study investigated the influence of dietary supplementation of rumen-unprotected betaine (RUPB) and rumen-protected betaine (RPB) on growth performance, meat quality and fatty acid profile in intramuscular and subcutaneous fat of growing lambs. A total of 24 Hu male lambs were equally divided i...

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Autores principales:	Yaqian Jin, Beibei Jiang, Hongrong Wang
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	male lambs meat quality fatty acid profile rumen-unprotected betaine rumen-protected betaine Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/f3b0bde77c4e4bf3936aef8ce4aa249f
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spelling	oai:doaj.org-article:f3b0bde77c4e4bf3936aef8ce4aa249f2021-11-11T14:23:42ZGrowth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine1594-40771828-051X10.1080/1828051X.2021.1992304https://doaj.org/article/f3b0bde77c4e4bf3936aef8ce4aa249f2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/1828051X.2021.1992304https://doaj.org/toc/1594-4077https://doaj.org/toc/1828-051XThis study investigated the influence of dietary supplementation of rumen-unprotected betaine (RUPB) and rumen-protected betaine (RPB) on growth performance, meat quality and fatty acid profile in intramuscular and subcutaneous fat of growing lambs. A total of 24 Hu male lambs were equally divided into three groups and fed a basal diet or basal diet supplemented with 1.6 g/kg of RUPB or 2.9 g/kg of RPB for 68 days. The water loss, redness of longissimus dorsi (LD) muscle and abdominal fat percentage were reduced in RUPB and RPB groups (p < .05). RPB supplementation decreased the shear force of LD muscle (p < .05). Polyunsaturated fatty acid (PUFA) content in LD muscle was decreased in RPB group, whereas n-3PUFA content was increased in RUPB group (p < .05). RUPB and RPB supplementation reduced the content of saturated fatty acid (SFA), and increased the contents of PUFA, monounsaturated fatty acid (MUFA), and n-6PUFA in subcutaneous fat (p < .05). Furthermore, dietary RUPB and RPB supplementation increased the mRNA expression of acetyl-CoA carboxylase (ACC) and glycerol-3-phosphate acyltransferase 1 (GPAT1) in LD muscle. It increased the mRNA expression of fatty acid synthetase (FANS) and lipoprotein lipase (LPL) but reduced the mRNA expression of GPAT1 in subcutaneous fat (p < .05). In conclusion, either RUPB or RPB supplementation may improve the meat quality and slightly change the fat deposition and fatty acid composition of intramuscular and subcutaneous fat, and RUPB is recommended as a supplement for growing male lambs based on its lower cost.Highlights Dietary supplementation of both rumen-unprotected betaine and (RUP B) and rumen-protected betaine (RPB) improved meat quality and altered the fat deposition of growing male lambs. Both RUPB and RPB supplementation changed fatty acid composition in the longissimus dorsi muscle and subcutaneous adipose tissue. RUPB is recommended as a supplement for growing lambs based on its lower cost.Yaqian JinBeibei JiangHongrong WangTaylor & Francis Grouparticlemale lambsmeat qualityfatty acid profilerumen-unprotected betainerumen-protected betaineAnimal cultureSF1-1100ENItalian Journal of Animal Science, Vol 20, Iss 1, Pp 2041-2050 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	male lambs meat quality fatty acid profile rumen-unprotected betaine rumen-protected betaine Animal culture SF1-1100
spellingShingle	male lambs meat quality fatty acid profile rumen-unprotected betaine rumen-protected betaine Animal culture SF1-1100 Yaqian Jin Beibei Jiang Hongrong Wang Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
description	This study investigated the influence of dietary supplementation of rumen-unprotected betaine (RUPB) and rumen-protected betaine (RPB) on growth performance, meat quality and fatty acid profile in intramuscular and subcutaneous fat of growing lambs. A total of 24 Hu male lambs were equally divided into three groups and fed a basal diet or basal diet supplemented with 1.6 g/kg of RUPB or 2.9 g/kg of RPB for 68 days. The water loss, redness of longissimus dorsi (LD) muscle and abdominal fat percentage were reduced in RUPB and RPB groups (p < .05). RPB supplementation decreased the shear force of LD muscle (p < .05). Polyunsaturated fatty acid (PUFA) content in LD muscle was decreased in RPB group, whereas n-3PUFA content was increased in RUPB group (p < .05). RUPB and RPB supplementation reduced the content of saturated fatty acid (SFA), and increased the contents of PUFA, monounsaturated fatty acid (MUFA), and n-6PUFA in subcutaneous fat (p < .05). Furthermore, dietary RUPB and RPB supplementation increased the mRNA expression of acetyl-CoA carboxylase (ACC) and glycerol-3-phosphate acyltransferase 1 (GPAT1) in LD muscle. It increased the mRNA expression of fatty acid synthetase (FANS) and lipoprotein lipase (LPL) but reduced the mRNA expression of GPAT1 in subcutaneous fat (p < .05). In conclusion, either RUPB or RPB supplementation may improve the meat quality and slightly change the fat deposition and fatty acid composition of intramuscular and subcutaneous fat, and RUPB is recommended as a supplement for growing male lambs based on its lower cost.Highlights Dietary supplementation of both rumen-unprotected betaine and (RUP B) and rumen-protected betaine (RPB) improved meat quality and altered the fat deposition of growing male lambs. Both RUPB and RPB supplementation changed fatty acid composition in the longissimus dorsi muscle and subcutaneous adipose tissue. RUPB is recommended as a supplement for growing lambs based on its lower cost.
format	article
author	Yaqian Jin Beibei Jiang Hongrong Wang
author_facet	Yaqian Jin Beibei Jiang Hongrong Wang
author_sort	Yaqian Jin
title	Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
title_short	Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
title_full	Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
title_fullStr	Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
title_full_unstemmed	Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
title_sort	growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/f3b0bde77c4e4bf3936aef8ce4aa249f
work_keys_str_mv	AT yaqianjin growthperformancemeatqualityandlipidmetabolisminfinishinglambsfeddietscontainingrumenunprotectedandrumenprotectedbetaine AT beibeijiang growthperformancemeatqualityandlipidmetabolisminfinishinglambsfeddietscontainingrumenunprotectedandrumenprotectedbetaine AT hongrongwang growthperformancemeatqualityandlipidmetabolisminfinishinglambsfeddietscontainingrumenunprotectedandrumenprotectedbetaine
_version_	1718439001198690304

Growth performance, meat quality and lipid metabolism in finishing lambs fed diets containing rumen-unprotected and rumen-protected betaine

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