中国农业科技导报2024，Vol.26Issue(4)：67-76,10.DOI:10.13304/j.nykjdb.2022.0760
不同海拔藏绵羊肉质脂肪酸特征分析
Characteristics Analysis of Meat Fatty Acids of Tibetan Sheep at Different Altitudes Under Natural Grazing Conditions
摘要
Abstract
In order to study the contents and composition of fatty acids in meat of Tibetan sheep at different altitudes under natural grazing conditions,6 ewes(3 years old)of Tibetan sheep at different elevations were selected,including high(4 500 m),middle(3 500 m)and low(2 500 m)altitudes.The composition and contents of fatty acids in longissimus dorsi,foreleg muscle and hindleg muscle were determined.The results showed that there were significant differences in fatty acid composition and content among Tibetan sheeps at different altitudes.Among them,the content of myristic acid(C14∶0)was the lowest in 3 muscle tissues of Tibetan sheeps at low altitude.And the content of oleic acid(C18∶1n9c)was the highest in 3 muscle tissues of Tibetan sheep at low altitude,which was significantly higher than that at middle and high altitudes.The ratios of polyunsaturated fatty acids(PUFA)to saturated fatty acids(SFA)(P/S)in different muscle tissues were from 0.168 to 0.504,and the P/S value of the longissimus dorsi muscle of Tibetan sheep at high altitude was significantly higher than that of middle and low altitudes.To sum up,except the longissimus dorsi of Tibetan sheep at high altitude area,the composition of fatty acids in different muscle tissues of Tibetan sheep at low altitude area had more advantages,which had good edible value and potential to produce high-grade mutton.关键词
海拔/藏绵羊/肉品质/脂肪酸Key words
altitude/Tibetan sheep/meat quality/fatty acids分类
农业科技引用本文复制引用
徐英,刘秀,任越,沙玉柱,蒲小宁,郭新羽,姚亮伟,邵鹏阳,王继卿,李少斌..不同海拔藏绵羊肉质脂肪酸特征分析[J].中国农业科技导报,2024,26(4):67-76,10.基金项目
甘肃省高等学校创新基金项目(2020A-52) （2020A-52）
甘肃农业大学科技创新基金项目(GAU-QDFC-2018-11) （GAU-QDFC-2018-11）
甘肃省草食动物生物技术重点实验室开放课题项目(GKLAB-201601) （GKLAB-201601）
西藏自治区科技计划项目(XZ202101ZD0001N). （XZ202101ZD0001N）
