公猪射精过程不同阶段精液精子密度和精液量的变化  

The Differences in Sperm Concentration and Semen Volume in Different Segments in one Boar Ejaculation

作　　者：幸宇云[1] 吴延博[1] 杨明[1] 李平华[1] 李凯[1] 周利华[1] 

机构地区：[1]江西农业大学动物生物技术国家重点实验室培育基地,江西南昌330045

出　　处：《江西农业大学学报》2011年第4期765-768,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：江西省自然科学基金(0630052);江西省教育厅项目(GJJ09473)

摘　　要：公猪在一次完整射精过程中有1至数次不等的短暂停顿,将公猪一次完整射精的精液分成三段:浓精(S1)、第一次射精中除浓精外的精液(S2)及其余部分精液(S3),研究三段精液精子密度、精液量的变化规律。结果表明:浓精精液量显著低于其它两段精液(P<0.01),而精子密度及总精子数显著高于其它两段精液(P<0.01);浓精量只占总精液量的约17%,而精子数占总精子数的约71%;公猪完整射精过程中的第一次射精精液量占总精液量的约70%、精子数占总精子数的约95%。There is one to several short pauses during the boar＇s whole ejaculation.The semen of the whole ejaculation was divided into three segments： concentrated semen（segment 1）,the semen of the first ejaculate with the exception of the concentrated semen（segment 2）,the rest part（segment 3）.The differences in sperm concentration and semen volume in these three different segments were studied.The results showed that the volume of the concentrated semen was significantly lower than that of the other two segments（P0.01）,whereas the sperm concentration and sperm number were significantly higher than those of the other two segments（P0.01）.The concentrated semen occupied only about 17% of the whole semen volume whereas about 71% of the total sperm number.The first ejaculate accounted for about 70% of semen volume and 95% of sperms of the whole ejaculation.

关 键 词：公猪 射精 精子密度 精液量 

分 类 号：S828.3[农业科学—畜牧学]