荷斯坦青年牛黄体直径对移植受胎率的影响  

The Effect of Corpus Luteum Diameter on Conception Rate of Transplantation in Adult Heifer

作　　者：薛森武 刘贤侠[1] 王忠 王建梅[1] 李学新 杨永军 江发云 

机构地区：[1]石河子大学动物科技学院,石河子832003 [2]新疆第八师142团双锵牧业有限责任公司,石河子832029 [3]新疆第八师142团畜牧中心,石河子832029

出　　处：《中国牛业科学》2017年第1期18-22,共5页China Cattle Science

摘　　要：【目的】为了获得更多的纯种和牛,【方法】采用临床观察、直肠检查和B超检查筛选出114头荷斯坦牛作为受体牛,采用CIDR埋栓做同期发情,在发情后第7天用B型超声仪对受体牛黄体直径进行测量,对符合条件的受体牛进行胚胎移植,将不同黄体直径(corpus lutum diameter,CLD)分为3个组,分别为1≤CLD≤1.5、1.5<CLD≤2.5和CLD>2.5。在移植后第23天用B超做妊娠诊断,以便研究黄体直径对移植受胎率的影响。【结果】表明,选择114头牛做同期发情,发情率为96.5%(110/114);黄体直径1≤CLD≤1.5组、1.5<CLD≤2.5组、CLD>2.5组受胎率分别是44.44%(4/9)、45.95%(17/37)和42.11%(8/19),各组之间差异均不显著(P>0.05)。【结论】说明黄体大小与胚胎移植受胎率没有直接相关性。In order to obtain more pure Japanese black cattle, 114 heifer as receptors were examined by clinical observation, rectal examination, and B-mode sonography then were placed CIDR （the vaginal suppository） to cause synchronous estrus on receptors. Receptor cow corpus luteum diameter were deter mined by B-mode ultrasonic apparatus in the seventh day after heat. Eligible receptors were transferred embryos of Japanese black cattle. Corpus lutum diameter （CLD） were divided into 3 groups, 1≤CLD≤1. 5, 1.5〈CLD≤2.5 and CLD〉2.5, respectively. Pregnancy diagnosis were implemented by ultrasound scanner in twenty-third day after transplantation in order to study the effect of luteal diameter on concep- tion rate of transplantation. The results showed that the selected heat 114 head of receptors, the estrus rate was 96.5% （110/114） ; conception rate of corpus luteum diameter （CLD） 1.5 cm or less group, 1.5 〈 CLD group 2.5 cm or less, CLD 〉2.5 cm group was 44.44% （4/9）, 45.95% （17/37） and 42.11% （8/19）, respectively. The differences between groups were not significant （P〉0.05）.

关 键 词：荷斯坦青年牛 黄体直径 移植受胎率 

分 类 号：S823.2[农业科学—畜牧学]