title: The need for, and possible methods of application of, hormone assay techniques for improving reproductive efficiency.
mesh_terms: D000818:Animals; D002417:Cattle; D004971:Estrus; D005260:Female; D005306:Fertilization; D007247:Infertility, Female / Q000175:diagnosis / Q000662:veterinary; D008297:Male; D010061:Ovulation Detection; D011247:Pregnancy; D011258:Pregnancy Tests / Q000662:veterinary*; D011374:Progesterone / Q000032:analysis
chemical_list: D011374:Progesterone