title: Early pregnancy diagnosis in Japanese black cows using a novel transrectal ultrasonography protocol.
authors.affiliation: United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Gaja
authors.forename: C
authors.initials: C
authors.lastname: Kubota
authors.forename: T
authors.initials: T
authors.lastname: Kojima
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002417:Cattle / Q000097:blood / Q000502:physiology*; D003338:Corpus Luteum / Q000000981:diagnostic imaging*; D005260:Female; D007315:Insemination, Artificial / Q000662:veterinary; D007564:Japan; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods / Q000662:veterinary*; D011374:Progesterone / Q000097:blood; D012007:Rectum; D018709:Statistics, Nonparametric; D013997:Time Factors; D014463:Ultrasonography / Q000379:methods / Q000662:veterinary*
chemical_list: D011374:Progesterone