paltry
发表于 2025-3-30 11:45:21
Efficiency and Productivity Analysis from a System Perspective: Historical Overviewizing ability of the sperm per se is influenced by the age of the male. The results of in vitro fertilization by sperm from adolescent, adult and aged males plus results of natural mating (% successful conceptions and litter size) are described.
ascend
发表于 2025-3-30 15:44:21
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