辽宁绒山羊母羊FSH全年分泌规律的研究

Study on the Year Round Secreting Regularity of FSH in Peripheral Plasma of Female Liaoning Cashmere Goats

利用激素放射免疫测定法对辽宁绒山羊双羔型和单羔型的母羊全年及发情期外周血清中FSH分泌水平进行检测。结果表明:双羔型和单羔型母羊在全年各个月间FSH的分泌水平不均衡,从每年的8月份开始逐渐升高,10月份达到高峰,11月份以后开始逐渐下降,并且双羔型和单羔型在秋季的FSH分泌量差异显著(P<0.05)。双羔型和单羔型绒山羊FSH在发情期呈脉冲式分泌并有明显的分泌高峰,双羔型的FSH的排卵前峰值出现时间比显著地晚于单羔型(P<0.05)。

Using hormone radioimmunoassay, the secretion level of FSH in serums of twin and single lamb type ewe of Liaoning Cashmere goats were detected in all the year around and oestrus. The results showed that the level of FSH in serums of twin and single lamb type ewe were disproportion in each month, the level of FSH increase gradualy from August, peaked in October and fall off after November. FSH secretory volume was significant difference in the fall between twin and single lamb type （P 〈 0.05 ）. The secretion of FSH at oestrus submited impulse type and had overt secretion peak, the preovulatory FSH peak value of twin lamb type was remarkably posterior to single lamb type（P 〈 0.05 ）.