Fertility in sheep. I. Conception rate in relation to lamb survival.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D005260:Female; D007194:India; D008297:Male; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000502:physiology*; D012621:Seasons; D012756:Sheep / Q000502:physiology*