Relationship between proteome changes of Longissimus muscle and intramuscular fat content in finishing pigs fed conjugated linoleic acid

文献类型： 外文期刊

第一作者： Zhong, Weijing

作者： Zhong, Weijing;Jiang, Zongyong;Zheng, Chuntian;Lin, Yingcai;Zhong, Weijing;Yang, Lin;Zou, Shutong

作者机构：

关键词： Conjugated linoleic acid;Finishing pigs;Intramuscular fat;Proteome

期刊名称：BRITISH JOURNAL OF NUTRITION （ 影响因子：3.718； 五年影响因子：4.816 ）

ISSN： 0007-1145

年卷期： 2011 年 105 卷 1 期

页码：

收录情况： SCI

摘要： The present experiment was conducted to determine proteome changes in Longissimus muscle of finishing pigs fed conjugated linoleic acid (CLA), in association with alteration of intramuscular fat content. Previously, seventy-two Duroc X Landrace x Large White gilts (approximately 60 kg) had been fed maize-soyabean meal-based diets with 0, 12.5 and 25 g CLA/kg diet. The CIA contained 369.1 mg/g cis-9, trans-11 CIA, 374.6 mg/g trans-10, cis-12 CIA and 53.7 mg/g other isomers. Six pigs per treatment were slaughtered when they reached a body weight of approximately 100 kg. Data published from a previous experiment demonstrated that supplementation with 12.5 or 25 g CLA/kg diet increased intramuscular fat content (P<0.05). The present study investigated the proteome changes in Longissimus muscle of control and pigs supplemented with 25 g CLA/kg diet. CIA significantly influenced the abundance of proteins related to energy metabolism, fatty acid oxidation and synthesis, amino acid metabolism, defence, transport and other miscellaneous processes (P<0.05). The increase in intramuscular fat content was positively correlated with the increased abundance of carbonic anhydrase 3 and aspartate aminotransferase (P<0.05). We suggest that the proteome changes in Longissimus muscle contributed to greater intramuscular lipid content in CIA-supplemented pigs.

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