金川多肋骨牦牛体外触摸鉴别法的解剖学验证及应用  

Verification and Application of Using in vitro Touching Method for Identifying Multi-costa Properties of Jinchuan Yak

作　　者：杨建梅 文勇立[2] 马定惠 李善蓉 傅昌秀 艾鹥[2] 罗光荣[4] 马吉刚 付如勇 班马德清 

机构地区：[1]金川县畜牧兽医局,四川金川624100 [2]西南民族大学生命科学与技术学院,成都610041 [3]四川省畜牧总站,成都610041 [4]四川省龙日种畜场,四川红原624400

出　　处：《四川动物》2013年第1期78-81,共4页Sichuan Journal of Zoology

基　　金：国家科技支撑计划(2012BAD13B06);四川省应用基础计划(2010JY0071);四川省科技支撑计划(2011FZ0054);四川省科技支撑计划(2011JZ0001)

摘　　要：目的通过屠宰和解剖学试验,验证金川多肋骨牦牛体外触摸鉴别方法的准确性,为科研和生产应用建立简捷实用、准确可靠的方法。方法对试验牦牛进行触摸鉴别,根据鉴定结果,依照肋骨对数将牦牛分为A、B两组(A组具15对肋骨,B组具14对肋骨),从A、B两组中随机抽取25%的个体进行屠宰和解剖实验。应用触摸鉴别法在中心产区和分布区对15对肋骨牦牛的比例进行普查。结果触摸鉴别准确率为96.15%;19头肋骨数为15对的牦牛中,胸椎为15,腰椎数为5的个体有18头,约占95%。而腰椎数为4的个体仅1头,占5.26%;26头屠宰牦牛中,真肋+弓肋+浮肋组型为8+7+0个体的比例为68.42%;8+6+1个体比例为31.58%。结论触摸鉴别法简捷、准确率高,可以在生产和科研中推广应用;15对肋骨牦牛中,大多数个体的胸椎多出1个,而腰椎数正常,且60%以上个体肋骨组型为8+7+0,无浮肋;中心产区,多肋牦牛比例为52.08%,分布区为30.21%。Objective The object of this study is to use slaughter and anatomy method to verify the accuracy of in vitro touching method to indentify multi-costa properties of Jinchuan yak Bos grunniens, and to provide simple and reliable indentifying method for research and productive. Method We divided the test yaks in group A and B （individual of A with 15 pair of ribs and B with 14 pair of ribs） according to the result of number of ribs which acquired from in vitro touching test. Then we slaughtered 25% of each group randomly to verifying the accuracy of the touching result. After that, we use the method to surveying in the center region and distribution region of Jinchuan multi-costa yak. Result Through the slaughter test, we ＂find the accuracy of in vitro touching method is 96.15%. There was 18 yaks （approximate 95% ） posses 5 lumber vertebrate and only one individual （ approximate 5.26% ） posses 4 lumbar vertebrae in the 19 yaks which own 15 thoracic vertebrate. In all of 26 yak slaughtered, the percentage of individual of 8 ＋ 7 ＋ 0 in the form of true rib ＋ arched rib ＋ floating rib was up to 68.42%, and 8 ＋ 6 ＋ 1 up to 31.58%. Conclusion The in vitro touching method is simple and reliable. This method is useful to research and production for the Jinchuan multi-costa yak. In the yak with 15 pair of ribs there were numerous individuals with one more thoracic vertebrae, and moreover, the numbers of lumbar vertebrae were nature. The rib form of about 60% of yak slaughtered was 8 ＋ 7 ＋ 0 without floating rib. The percentage of 15 pair of ribs was 52.08% in central distributional areas and 30.21% in common areas.

关 键 词：金川多肋骨牦牛 体外触摸法 屠宰试验 解剖学 验证 

分 类 号：S823[农业科学—畜牧学]