| 摘要: |
| 早在二十世纪初,美国学者 Willams 等人证实了有关繁殖力低或不育公牛在精子形态上的明显变化。1929和1934年瑞典繁殖生物学家 Lagerlof 相继发表了对繁殖力降低和完全丧失繁殖力公牛的睾丸和精子形态变化的研究结果。这些有价值的研究清楚地表明,精液中精子形态的变化和畸形精子的比例,同公畜繁殖力的降低程度有一个大致平行的关系。这一发 |
| 关键词: 公牛 排出管 畸形精子 精子形态 繁殖力 精液 原生质 公畜 |
| DOI： |
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| 基金项目: |
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| THE MORPHOLOGY OF SPERM AND MALE ANIMAL FERTILITY |
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| Abstract: |
| 1.Morphological changes of sperm take place in the testis and geni- tal tract of male animals.During passage through the extensive duct system,the proportion of sperm with abnormal head and reed-piece decreses and the percentage of sperm with abnormal tail increases.But there are significant differences between the normal animal and the animal with certain reproductive disfunction in the percentage and types of abnormal sperm. 2.The percentage and types of abnormal sperm have noticeable re- lationship with ... |
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