title: Fertility problems in dairy herds.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D003612:Dairying; D020964:Embryo Loss / Q000662:veterinary; D004972:Estrus Detection; D005260:Female; D005313:Fetal Death / Q000662:veterinary; D007247:Infertility, Female / Q000517:prevention & control / Q000662:veterinary*; D007315:Insemination, Artificial / Q000662:veterinary; D003341:Luteolysis; D008892:Milk / Q000378:metabolism; D010062:Ovulation Induction / Q000662:veterinary; D011247:Pregnancy; D011374:Progesterone / Q000378:metabolism
chemical_list: D011374:Progesterone