江达牦牛产肉性能及肉品质分析研究  

Study on meat production and quality properties of Jiangda yak

作　　者：信金伟[1,2] 张成福 姬秋梅[1,2] 李超 胡永锋[3] 田孟江 朱勇[1,2] 达娃央拉 洛桑 平措占堆 张强[1,2] XIN Jinwei ZHANG Chengfu JI Qiumei LI Chao HU Yongfeng TIAN Mengjiang ZHU Yong DAWA Yangla LUO Sang PINGCUO Zhandui ZHANG Qiang(Institute of Animal Science and Veterinary,Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850009, China State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Lhasa 850000, China Changdu Animal Husbandry Smwice, Changdu 854000 China)

机构地区：[1]西藏自治区农牧科学院畜牧兽医研究所,拉萨850009 [2]省部共建青稞和牦牛种质资源与遗传改良国家重点实验室,拉萨850000 [3]昌都市畜牧总站,西藏昌都854000

出　　处：《黑龙江畜牧兽医》2017年第10期228-232,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金："十二五"国家科技支撑计划项目(2012BAD03B02)

摘　　要：为了解江达牦牛的产肉性能及其肉品质性状,试验随机选取10头(公母各半)成年健康的江达牦牛进行屠宰试验及其肉品质分析研究。结果表明:江达牦牛公牛屠宰率为51.00%,净肉率为44.14%,胴体产肉率为86.54%,骨肉比为1∶6.43,眼肌面积为(40.90±9.57)cm^2;江达牦牛母牛屠宰率为49.02%,净肉率为42.72%,胴体产肉率为87.13%,骨肉比为1∶6.77,眼肌面积为(31.62±4.98)cm^2。江达牦牛肉富含硒、铁、维生素E,牛磺酸含量丰富,不饱和脂肪酸含量较高,ω-6/ω-3比值较佳。说明江达牦牛具有较好的产肉性能,江达牦牛肉具有高蛋白的特点,氨基酸总量高,符合理想模式,属于优质动物蛋白,具有较好的加工性能。In order to study meat production and quality properties of Jiangda yak, ten healthy yaks （ half male and half female） were randomly se- lected in this experiment for slaughter and the measurement on quality properties. The results showed that dressing percentage, net meat percent- age,carcass production rate, bone - meat ratio and eye muscle area of male Jiangda yak were 51.00% ,44. 14% ,86.54% , 1：6.43 and （ 40.90 ± 9.57 ） cm2, respectively ; and those factors of female Jiangda yak were 49.02 % ,42.72 % , 87.13 %, 1：6.77 and （ 31.62 ± 4.98 ） cm2 each. The meat of Jiangda yak was rich in mineral elements Se, Fe, vitamin E and taurine, and was in higher content of unsaturaled fatty acids, and in comparatively appropriate ratio of ω - 6/ω - 3. The results indicated that Jiangda yak could have better meat performance and high a- mounts of proteins and amino acids, which were conformed to be the desired pattern. The yak meet belonged to high - quality animal protein and owned a better processing property.

关 键 词：牦牛 产肉性能 屠宰率 净肉率 肉品质 

分 类 号：S823.85[农业科学—畜牧学]