Dalrymple J R, Macpherson J W, Friars G W
Can J Comp Med. 1968 Apr;32(2):437-9.
Semen collection was carried out on Large White and Auburn turkeys over a nine month period beginning in February. Equal numbers of each strain were slaughtered periodically throughout the summer and fall. The testicles were recovered, weights recorded, and histological sections were prepared and examined for signs of active spermatogenesis. Significant differences occurred in the testes weight between the two strains studied in the May and September tested birds. Significant differences also occurred in the testes weight within strains between the males slaughtered in May and October. Microscopic examination of histological sections revealed a progressive reduction in active spermatogenesis between testes recovered in early summer and those recovered in the fall.
精液采集工作于2月开始，在大白火鸡和奥本火鸡上持续了9个月。在整个夏季和秋季，定期宰杀相同数量的每个品种。取出睾丸，记录重量，并制作组织切片，检查活跃精子发生的迹象。在5月和9月测试的鸟类中，所研究的两个品种的睾丸重量存在显著差异。在5月和10月宰杀的雄性火鸡中，同一品种内的睾丸重量也存在显著差异。组织切片的显微镜检查显示，初夏采集的睾丸与秋季采集的睾丸相比，活跃精子发生逐渐减少。
