title: Effects of origin and environment on reproductive phenomena in Rambouillet ewes. I. Breeding season and ovulation.
mesh_terms: D000818:Animals; D001947:Breeding; D002940:Circadian Rhythm; D004781:Environmental Exposure; D004971:Estrus; D005260:Female; D007061:Idaho; D010060:Ovulation; D011247:Pregnancy; D012098:Reproduction; D012621:Seasons; D012756:Sheep / Q000502:physiology*; D013696:Temperature; D013781:Texas