小尾寒羊母羊偏酸内环境对羔羊性别比例影响  

Effect of Acidic Internal Environment of Small Tail Han Sheep Ewe on Lamb Sex Ratio

作　　者：刘山辉 Liu Shanhui(Liaoning Vocational College,Tieling 112099,China)

机构地区：[1]辽宁职业学院,铁岭112099

出　　处：《畜牧兽医科学（电子版）》2020年第17期24-25,共2页Graziery Veterinary Sciences：Electronic Version

基　　金：职业院校教师企业兼职对促进校企合作的研究,辽宁现代农业职教集团立项2019-09。

摘　　要：养羊生产中,雌性母羊有机动性,即可育肥也可选育保留品种扩繁种群。科研人员通过控制外界条件、受孕时间、人工输精时用精氨酸酸化产道,达到增加雌性胚胎的目的。2018—2019年,通过2年的实践研究,以发情期控制电解质饲喂结合气温控制,形成小尾寒羊母羊机体偏酸内环境,该阶段自然受精,获得较大比例的雌性羔羊胎儿。试验方法简单易行,操作方便。静脉血液pH值为7.22为临界值,静脉血液pH值为7.25~7.35时,偏酸内环境母羊受精雌性胎儿比例达到85%以上。In the production of raising sheep,the female ewes have the mobility to fatten or to select the reserved breeds to expand the population.The researchers increased the number of female embryos by controlling the external conditions,the time of conception and the use of arginine to acidify the birth canal during artificial insemination.In 2018—2019,through 2 years practice study,the estrous period controlled electrolyte feeding combined with temperature control,formed the little tail Han sheep ewe body partial acid internal environment,this stage of natural fertilization,obtained a large proportion of female lamb fetus.The test method is simple and easy to operate.When the pH value of venous blood was 7.22,and the Ph value of venous blood was 7.25~7.35,the proportion of female fetus reached over 85%.

关 键 词：小尾寒羊 偏酸内环境 雌性胎儿 血液pH值 

分 类 号：S823[农业科学—畜牧学]