OVULATION RATES AND LITTER SIZES IN SEXUALLY RECEPTIVE AND NONRECEPTIVE ARTIFICIALLY INSEMINATED RABBITS GIVEN VARYING DOSAGES OF LUTEINIZING HORMONE

R. H. FOOTE, H. D. HAFS, R. E. STAPLES, A. T. GREGOIRE, R. W. BRATTON
1963 Reproduction  
At any one time a large proportion of individually caged, sexually mature female rabbits failed to copulate. Intravenous adminis¬ tration of purified pituitary luteinizing hormone (plh) (Armour) produced ovulations in sexually receptive and nonreceptive does alike. Does with histories of infertility ovulated after the injection of plh. The routine administration of 2-5 mg of plh to fifty-seven virgin and multiparous Dutch-Belted does averaging 2 to 3 kg, followed by artificial insemination,
more » ... l insemination, resulted in 91% of the does kindling and 307 young being born. Administration of either 0-5 mg or 1 mg of plh per kg to random members of fourteen pairs of does, accompanied by artificial insemina¬ tion, resulted in no difference between the number of ovulations or the number of young per treatment ( >0·05). Fertility and litter size were normal when sixteen does were re-injected with plh and inseminated after weaning their previous litters.
doi:10.1530/jrf.0.0050059 pmid:13958662 fatcat:tqqrhvuxsnc23f646vm4leopei