摘要
为了提高牦牛肉用性能选育效率,试验采用B超测定技术活体测定牦牛背膘厚与眼肌面积。结果表明:成年牦牛(4岁以上)背膘厚为(4.87±1.09)mm、眼肌面积为(25.58±1.75)cm2,青年(1岁)牦牛背膘厚为(1.93±0.28)mm、眼肌面积为(12.93±2.78)cm2。说明牦牛脂肪沉积晚,这可能与牦牛在高寒牧区生长发育慢、体成熟迟有关。
To improve breeding efficiency of meat performance in yak, B - ultrasonic technology was used to determine the backfat thickness and eye muscle area of living yak. The results showed that the backfat thickness and eye muscle area in the more than four - year - old adult yaks were (4.87 ± 1.09 )mm and (25.58 ± 1.75 )cm2, respectively; the backfat thickness and eye muscle area in the young( one- year - old) yaks were ( 1.93 ± 0.28 )mm and ( 12.93±2.78 ) cm2, respectively. The results indicate that the fat deposition of yaks is late, which may be related to the slow growth and development, and late body maturity of yak in the alpine pastoral area.
出处
《黑龙江畜牧兽医》
CAS
北大核心
2015年第8期109-111,297,298,共5页
Heilongjiang Animal Science And veterinary Medicine
基金
"十二五"国家科技支撑计划项目(2013BAD16B09)
国家自然科学基金项目(31301976)
现代农业(肉牛牦牛)产业技术体系建设专项(CARS-38)
关键词
B超技术
背膘厚
眼肌面积
体重
牦牛
B - ultrasonic technology
backfat thickness
eye muscle area
body weight
yak