实验小型猪发情周期和妊娠早期外周血清孕酮含量的变化规律  

Serum progesterone of mini-gilts during oestrous cycle and early pregnancy

作　　者：张德福[1,2] 刘东亮[1] 戴建军[1,2] 吴彩凤[1,2] 吴华莉[1,2] 郑筱峰[3] 王昭凯[4] 王少兵[4] 

机构地区：[1]上海市农业科学院畜牧兽医研究所,上海201106 [2]上海市农业遗传育种重点实验室动物遗传工程研究室,上海201106 [3]南京农业大学动物医学院,南京210095 [4]南京农业大学动物科技学院,南京210095

出　　处：《上海农业学报》2009年第1期6-8,共3页Acta Agriculturae Shanghai

基　　金：上海市科技兴农推广项目(沪农科推字2006-2-5;2007-3-7);上海市科技兴农重点攻关项目[沪农科攻字(2005)第3-5号];上海市科学技术发展基金课题资助(No.014909005;04DZ05611);上海市农科院青年科技发展基金[2008(07)];上海市农业遗传育种重点实验室开发课题(Shagb2008-03)资助

摘　　要：测定了5头贵州香猪和5头上海小型猪发情周期和妊娠早期外周血清的孕酮含量。发现两个品种发情周期血清孕酮含量有相似的变化，峰值均出现在发情周期的9～12d，贵州香猪为26．00ng／mL，上海小型猪为24．36ng／mL；妊娠早期的变化也大致相同。贵州香猪和上海小型猪在妊娠-3～12d与发情周期-2～12d的孕酮含量变化相近，妊振第12天峰值贵州香猪为21．40ng／mL，上海小型猪为27．78ng／mL；在妊振12d后两品种猪孕酮含量略有下降；16-20d后又开始回升，并维持在较高水平。发情周期和妊娠早期外周血清孕酮含量16d后有明显差异，可供早期妊娠诊断参考。The progesterone contents of peripheral serum of 5 Guizhou Xiang gilts and 5 Shanghai mini- gilts were determined during their oestrous cycles and early pregnancy by a radioimmunoassay method. It was found that the two gilt breeds during oestrous cycles were similar in the progesterone content change, and their peak values were 26.00 ng/mL for Guizhou Xiang gilts and 24.36 ng/mL for Shanghai mini-gilts and all appeared during 9-12 d of oestrous cycles. The change during early pregnancy was also largely alike. The two gilt breeds during - 3-12 d of early pregnancy and - 2-12 d of oestrous cycle were similar in the progesterone content change. On the 12th day of pregnancy, the peak value was 21.40 ng/mL for Guizhou Xiang gilts and 27.78 ng/mL for Shanghai mini-gilts. The progesterone content for both breeds slightly decreased after 12 days of pregnancy but increased again between 16-20 days of pregnancy and remained a relatively high level. The difference of the progesterone levels afterl6 days between the cycle and early pregnancy was significant and could be used to diagnose the gilt＇s early pregnancy.

关 键 词：贵州香猪 上海小型猪 发情周期 妊娠早期 孕酮 

分 类 号：S852.21[农业科学—基础兽医学] S828[农业科学—兽医学]