Jiang Qianming, Li Chenyan, Yu Yuannian, Xing Yueteng, Xiao Dingfu, Zhang Bin
Hunan Co-Innovation Center of Animal Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China.
Anim Nutr. 2018 Sep;4(3):256-259. doi: 10.1016/j.aninu.2018.05.006. Epub 2018 Jul 7.
The present study is conducted to determinate fatty acids (FA) composition in 3 adipose tissues. Subcutaneous and perirenal adipose tissues were prepared from 24 castrated boars and 24 castrated gilts fattened by a traditional diet for 56 d, respectively. The results showed that the FA profile in the 3 adipose tissues (dorsal subcutaneous adipose [DSA], abdominal subcutaneous adipose [ASA], and perirenal adipose [PA]) differed greatly. In boars, the proportions of oleic acid (c18:1n9c) ( < 0.05), cis-11-20c acid (c20:1) ( < 0.05), and α-linolenic acid (c18:3n3) ( < 0.05) in DSA were the highest among 3 adipose tissues, whereas palmitic acid (c16:0) ( < 0.05) and stearic acid (c18:0) ( < 0.05) in DSA had the lowest proportion. In gilts, cis-11-20c acid (c20:1) ( < 0.05) in DSA was the highest, while stearic acid (c18:0) ( < 0.05) in subcutaneous adipose was the lowest among these deposits. Overall, the results indicate that from external to inner carcass of boars, the sum of saturated fatty acids (SFA) increase, but the sum of monounsaturated fatty acids (MUFA) decrease, while ASA of gilts have the greatest proportion of MUFA and the lowest SFA. Sex and adipose locations as significant effects on the FA profile are interaction.
本研究旨在测定3种脂肪组织中的脂肪酸（FA）组成。分别从24头经传统日粮育肥56天的去势公猪和24头去势母猪中获取皮下和肾周脂肪组织。结果表明，3种脂肪组织（背部皮下脂肪[DSA]、腹部皮下脂肪[ASA]和肾周脂肪[PA]）的脂肪酸谱差异很大。在公猪中，DSA中的油酸（c18:1n9c）（<0.05）、顺式-11-二十碳烯酸（c20:1）（<0.05）和α-亚麻酸（c18:3n3）（<0.05）比例在3种脂肪组织中最高，而DSA中的棕榈酸（c16:0）（<0.05）和硬脂酸（c18:0）（<0.05）比例最低。在母猪中，DSA中的顺式-11-二十碳烯酸（c20:1）（<0.05）最高，而皮下脂肪中的硬脂酸（c18:0）（<0.05）在这些脂肪沉积中最低。总体而言，结果表明，从公猪胴体的外部到内部，饱和脂肪酸（SFA）的总和增加，但单不饱和脂肪酸（MUFA）的总和减少，而母猪的ASA中MUFA比例最高，SFA最低。性别和脂肪位置对脂肪酸谱有显著影响，二者存在交互作用。
