Effect of artificial daylight changes on the reproductive rate of sheep.
D000818:Animals; D003365:Costs and Cost Analysis; D004971:Estrus; D005260:Female; D007774:Lactation; D007989:Libido; D008029:Lighting; D008297:Male; D010060:Ovulation; D010507:Periodicity; D011247:Pregnancy; D012098:Reproduction; D012621:Seasons; D012726:Sexual Behavior, Animal; D012756:Sheep