B超活体测定牦牛眼肌面积和背膘厚的研究  

Study of B-ultrasonic technology in the determination of eye muscle area and back fat thickness of living yak

作　　者：郭宪[1] 裴杰[1] 保善科 吴晓云[1] 赵索南 包鹏甲[1] 孔祥颖 阎萍[1] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所甘肃省牦牛繁育工程重点实验室,兰州730050 [2]青海省海北藏族自治州畜牧兽医科学研究所,青海海北810200

出　　处：《黑龙江畜牧兽医》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)

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.

关 键 词：B超技术 背膘厚 眼肌面积 体重 牦牛 

分 类 号：S854.75[农业科学—临床兽医学] S823[农业科学—兽医学]