Answers are grounded in this paper and cite their sources.
Ovulations were induced in hens by the intravenous injection of a luteinizing preparation into hens pretreated with pregnant mare's serum for 6 to 11 days. Ovulation was induced in some hens following each of 3 successive LH injections. As many as 7 multiple ovulations were effected in individual PMS pretreated hens following a single LH injection.
No takes yet. Share an insight, caveat, or question.
Fraps et al. (1942) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: