The effect of vitamin A supplementation on reproduction in gilts.
D000818:Animals; D004305:Dose-Response Relationship, Drug; D005260:Female; D007247:Infertility, Female; D007315:Insemination, Artificial; D011247:Pregnancy; D012098:Reproduction / Q000187:drug effects*; D013552:Swine; D014801:Vitamin A / Q000008:administration & dosage / Q000494:pharmacology*
D014801:Vitamin A