儋州鸡不同产蛋时期生殖激素分泌规律的研究
发布时间:2019-05-23 10:59
【摘要】:为研究儋州鸡不同产蛋时期生殖激素的分泌规律,采用ELISA方法对儋州鸡母鸡开产前期、开产期、产蛋高峰期及产蛋后期4个时期血液中促卵泡素(FSH)、促黄体生成素(LH)、催乳素(PRL)、孕酮(P)、雌二醇(E_2)的浓度进行测定。结果显示,开产期与产蛋高峰期FSH与LH浓度极显著高于开产前期和产蛋后期(P0.01);不同产蛋时期血液中PRL浓度呈上升趋势,且开产前期和开产期PRL浓度显著低于产蛋后期(P0.05);不同产蛋时期血液中E_2浓度呈下降趋势,且产蛋后期E_2浓度显著高于开产前期和开产期(P0.05),极显著高于产蛋高峰期(P0.01);开产期与产蛋后期P的浓度较高,均显著高于开产前期(P0.05),且极显著高于产蛋高峰期(P0.01)。研究表明,儋州鸡在不同产蛋时期血液中生殖激素含量水平有不同的变化,开产期血液中FSH、LH及P浓度较开产前期明显升高;产蛋高峰期血液中FSH与LH的浓度高于其他时期;产蛋后期血液中PRL、E_2、P的浓度较产蛋高峰期明显上升,且负反馈调节FSH与LH的分泌量。
[Abstract]:In order to study the secretion of reproductive hormones in Danzhou hens at different laying stages, ELISA method was used to study the follicular hormone (FSH), (LH), in the blood of Danzhou hens at the early stage of labor, the opening period, the peak period of laying eggs and the late stage of laying. The concentration of prolactin (PRL), progesterone (P), estradiol (E 鈮,
本文编号:2483845
[Abstract]:In order to study the secretion of reproductive hormones in Danzhou hens at different laying stages, ELISA method was used to study the follicular hormone (FSH), (LH), in the blood of Danzhou hens at the early stage of labor, the opening period, the peak period of laying eggs and the late stage of laying. The concentration of prolactin (PRL), progesterone (P), estradiol (E 鈮,
本文编号:2483845
本文链接:https://www.wllwen.com/yixuelunwen/dongwuyixue/2483845.html