绵羊在四季中生精规律的研究(Ⅰ.精子发生的季节变化)

THE LAW OF SPERMATOGENESIS IN RAM AND THE FOUR SEASONS

利用发育的精子细胞顶体形态变化的分类法对绵羊在四季中睾丸曲细精管横切面上的精原细胞、精母细胞和精细胞进行了观察和统计,并对生殖细胞的比率和精子发生的效率进行了研究。结果表明,繁殖季节和非繁殖季节在精子发生水平等方面均存在着显著的季节变化。

Classification of morphological changes of the acrosome was employed in observing and determining the relationship between the development of the spermatogonium, the spermatocyte and the spermatid on the cross-section of the convoluted tubule of testis and changes of the seasons. And also a comparison between the rate of germ cells and the efficiency of spermatogenesis. The resultshowed: There's a significant difference between the reproduction season and the non-production season in spermatogenesis.