交配次数对发情猫排卵和血清LH的影响  

THE EFFECT OF THE NUMBER OF COPULATIONS ON INCIDENCE OF OVULATION AND ON SERUM LH IN ESTURS CATS

作　　者：刘代成[1,2] 张波英 原永洁[1,2] 

机构地区：[1]山东师范大学生物学系 [2]莒南县职业中等专业学校

出　　处：《山东师范大学学报（自然科学版）》1997年第4期419-422,共4页Journal of Shandong Normal University(Natural Science)

摘　　要：研究了雌猫交配次数、排卵与血清ＬＨ的关系．用放射免疫方法对不爬跨、爬跨不交配、１～４次交配和自由交配的雌猫试验前后血清ＬＨ和孕酮含量进行了测定．结果表明：不爬跨猫血清ＬＨ不增加、不排卵．爬跨不交配猫血清ＬＨ虽稍有升高，但仍无排卵．交配１次、２次的猫，排卵者分别占５０％和１００％．１次和多次交配的家猫在０１７、１、４、８、１２ｈ的血清ＬＨ水平表明在首次交配后１ｈ达到高峰；随交配次数的增加（１和２，２和３～４，３～４次和自由交配相比）明显升高（Ｐ＜００５或Ｐ＜００１）．排卵猫血清ＬＨ２４ｈ后回复到基线状态．交配１次的发情猫血清ＬＨ至少要达到３２２μｇＬ才能排卵．排卵猫在交配后的第３～６天孕酮水平持续升高，各交配组排卵猫第３天和第６天血清孕酮值相比差异显著（Ｐ＜００１）．第６天可冲出卵子．这些结果表明：交配次数对家猫排卵。The relationship between the number of copulations and the incidence of ovulation and the serum LH was studied in the case of the female cat(queen).When queens were not mounted,no increase in LH were observed and ovulation did not occur.In queens allowed a mounting without intromission,there was a slight increase in LH at 0.7 h. But ovulation did not occur.The incidence of ovulation involving single and multiple copulations was 50% and 100% respectively.LH and progesterone were elevated only in animals confirmed to ovulate.Through the comparison of the serum LH(at 0 17,1,4,8,12 h)levels of different copulatory numbers in ovulating cats(1 vs 2,2vs 3～4,3～4vs ad libitum copulations),LH were significantly higher( P <0 05 or P <0 01)with the increasement of the number of copulations.These results indicate that the number of copulations aparently plays a major role in influencing the incidence of ovulation and serum LH levels.

关 键 词：促黄体生成激素 孕酮 排卵 交配次数 发情 猎 

分 类 号：Q492.5[生物学—生理学] S829.3[农业科学—畜牧学]