Nearly 6 billion sperm, plus 9. billion for each added day between partially exhaustive collections, were produced by six two-year-old Holstein bulls, in tests of the sperm available for ejaculation at intervals of one to seven days.A depleted sperm supply was restored in seven days, and extending the time to 30 days between partial exhaustions resulted in no more spermatozoa.The correlation between testis-epididymis weight and its dimensions was r:.94; between testes-epididymides weight and number of sperm ejaculated, r=.80, and between seminal vesicles and semen volume,
No takes yet. Share an insight, caveat, or question.
Boyd et al. (1957) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: