畜牧与兽医2024，Vol.56Issue(1)：13-19,7.
不同月龄贵州黑山羊生长性能、屠宰性能及肌肉和脂肪组织中膻味脂肪酸含量分析
Analysis of growth performance,slaughter performance and content of odor fatty acids in muscle and adipose tissue of Guizhou Black goats at different months of age
摘要
Abstract
This study was to determine the production performance,slaughter performance and content of mutton fatty acids in muscle and adipose tissue of Guizhou Black goats at different months of age.In the experiment,80 Guizhou Black goats(40 males and 40 females)aged 3,6,12,and 24 months were selected under the same feeding level for growth performance measurement.Five males and five females of the goats of different ages were randomly selected for slaughter performance analysis.The content of mutton fatty acids in different muscles and adipose tissues of the male goats at different months of age were measured and analyzed.The results showed that there were significant differ-ences in body weight,body height,body length,chest circumference,and other indicators between the males and females(P＜0.05),and these indicators all increased with higher months of age of the goats.The various indicators of slaughter performance of the goats showed the same trend.The analysis of fatty acids in the muscle tissue showed that the contents of 4-methyloctanoic acid(MOA),4-ethyloctanoic acid(EOA)and 4-methylnonanoic acid(MNA)all showed a trend of increasing with higher months of age of the goats.The contents of the three types of mutton fatty acids in the tissue were the highest at 24 months of age of the animals.In the subcutaneous fat of the goats,the contents of MOA and MNA were the highest at 24 months of age,both significantly higher than those at the other months of age;however,the content of EOA was the highest at 12 months of age,and significantly higher than that at the other months of age.In the adipose tissue of animals,the contents of the three types of mutton fatty acids were the highest at 24 months of age,which was significantly higher than those at the oth-er months of age.The present study indicated that there were significant differences in growth and slaughter performance among Guizhou Black goats at different months of age,and the formation and deposition of mutton fatty acids continued with the increasing age of goats.关键词
月龄/贵州黑山羊/生长性能/屠宰性能/膻味脂肪酸Key words
month of age/Guizhou Black goat/growth performance/slaughtering performance/odor fatty acids分类
农业科技引用本文复制引用
杨洋,袁超,龙勇,肖文..不同月龄贵州黑山羊生长性能、屠宰性能及肌肉和脂肪组织中膻味脂肪酸含量分析[J].畜牧与兽医,2024,56(1):13-19,7.基金项目
贵州省科技计划项目(黔科合支撑[2021]一般112) （黔科合支撑[2021]一般112）
贵州省农业科学院青年科技基金项目(黔农科院青年科技基因[2021]27号) （黔农科院青年科技基因[2021]27号）
贵州省科技计划项目(黔科合支撑[2022]重点033) （黔科合支撑[2022]重点033）
国家重点研发计划项目(2021YFD1100308) （2021YFD1100308）
