周岁哈萨克羊胴体性状及脂肪酸成分分析  

Analysis of Carcass Traits and Fatty Acid Composition of One-year-old Kazakh Sheep

作　　者：张恺 玛尔孜娅·亚森 阿米妮古丽·阿不来孜 白锋 罗春彦 于丽娟[2] 纳扎开提·艾尼万尔 买坎·沙力 周喜荣[3] 高宁 张艳花[2] ZHANG Kai;MAERZIYA·Yasen;AMINIGULI·Abulaizi;BAI Feng;LUO Chunyan;YU Lijuan;NAZHAKAIDI·Ainiwaner;MAIKAN·Shali;ZHOU Xirong;GAO Ning;ZHANG Yanhua(College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China;Institute of Animal Husbandry of Xinjiang Academy of Animal Science/Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources(Sheep)of Ministry of Agriculture and Rural Development/Xinjiang Key Laboratory of Genetic Breeding and Reproduction of Fleece Sheep,Urumqi 830026,China;Institute of Animal Husbandry Economics and Information,Xinjiang Academy of Animal Science,Urumqi 830026,China;Xinjiang Academy of Animal Science,Urumqi 830026,China)

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]新疆畜牧科学院畜牧研究所/农业农村部畜禽资源(羊)评价利用重点实验室/新疆绒毛用羊遗传育种与繁殖重点实验室,乌鲁木齐830026 [3]新疆畜牧科学院畜牧业经济与信息研究所,乌鲁木齐830026 [4]新疆畜牧科学院,乌鲁木齐830026

出　　处：《草食家畜》2024年第5期27-34,共8页Grass-Feeding Livestock

基　　金：中中央引导地方科技发展专项资金项目“羊遗传资源评价与利用实验平台建设”(ZYYD2023B10);新疆维吾尔自治区产业技术体系项目“新疆牧区地方肉羊选育改良计划”(XJMQ-1);新疆维吾尔自治区农业科技推广服务项目“哈萨克羊标准化绿色养殖技术及肉产品开发示范推广”(NTFW-2024-06)。

摘　　要：【目的】测定周岁哈萨克羊胴体性状及脂肪酸成分,分析周岁哈萨克羊产肉性能及影响羊肉风味及品质的主要物质,为羊肉生产及产品研发提供新的思路。【方法】随机选取20只周岁哈萨克羊,公母各10只,屠宰并采集背肌,测定4个性状并记录数据。利用内标法测定哈萨克羊肌内脂肪成分,使用SPSS和Excel软件对数据进行多重比较和相关性分析。【结果】周岁哈萨克羊的宰前活重、胴体重、净肉重、尾重、尾重占胴体重百分比、屠宰率、背肌与性别呈极显著相关。饱和脂肪酸(SFA)中棕榈酸(C16:0)含量最高。单不饱和脂肪酸(MUFA)中,反式油酸(C18:1n9t)含量最高。多不饱和脂肪酸(PUFA)中,亚油酸(C18:2n6c)含量最高。【结论】通过对哈萨克羊胴体分析和肌内脂肪酸成分分析发现,周岁哈萨克羊屠宰性能测定结果与前人研究结果一致,尾脂占胴体7.92%~12.54%。哈萨克羊肌内脂肪酸中含有丰富的ω-3和ω-6多不饱和脂肪酸,具有良好的保健作用。【Objective】In order to Measure the carcass traits and fatty acid composition of one-year-old Kazakh sheep,analyze the mutton performance of one-year-old Kazakh sheep and the main substances affecting the meat flavor and quality,so as to provide new ideas for mutton production and development.【Methods】Twenty one-year-old Kazakh sheep,10 males and 10 females,were randomly selected and slaughtered,and dorsal muscles were collected,four traits were determined and data were recorded.Intramuscular fat composition of Kazakh sheep was determined using the internal standard method,and multiple comparisons and correlation analysis were carried out using SPSS and EXCEL software.【Results】Pre-slaughter live weight,carcass weight,net meat weight,tail weight,percentage of tail weight to carcass weight,slaughter rate and dorsal muscle of one-year-old Kazakh sheep were extremely significantly correlated with sex,and the content of palmitic acid(C16:0)was highest in saturated fatty acids(SFA),so was the content of trans-oleic acid(C18:1n9t)in monounsaturated fatty acids(MUFA),the linoleic acid(C18:2n6c)in polyunsaturated fatty acids(PUFA).【Conclusion】Based on the carcass analysis and intramuscular fatty acid composition analysis for Kazakh sheep,it was found that the determination results of slaughter performance of one-year-old Kazakh sheep were consistent with previous studies,tail fat accounted for 7.92% to 12.54% of the carcass.Intramuscular fatty acids were rich in omega-3 and omega-6 polyunsaturated fatty acids,which had good effects for human health.

关 键 词：哈萨克羊 胴体性状 脂肪酸成分 

分 类 号：S826[农业科学—畜牧学]