title: Intratubal insemination with fresh semen in dogs.
abstract: The number of spermatozoa required to obtain conception by intratubal insemination in dogs was examined. Three groups consisting of 5, 8 and 8 dogs received 0.5 x 10 (6), 2.0 x 10(6) and 4.0 x 10(6) spermatozoa, respectively, into each uterine tube. No conception occurred in the 5 animals inseminated with 0.5 x 10(6) spermatozoa, but conception occurred in 6/8 (75.0%) and 3/8 (37.5%) dogs inseminated with 2.0 x 10(6) and 4.0 x 10 (6) spermatozoa, respectively. Among the pregnant animals, three aborted (33.3%) and the mean number of newborns was small, 2.5 +/- 0.5 (SE). One acardiacus anceps was observed with normal fetus in one animal with a Caesarean delivery.
authors.affiliation: Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan.
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Tsutsui
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Hori
authors.forename: Ayako
authors.initials: A
authors.lastname: Yamada
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Kirihara
authors.forename: Eiichi
authors.initials: E
authors.lastname: Kawakami
mesh_terms: D000034:Abortion, Veterinary; D000818:Animals; D000831:Animals, Newborn; D002585:Cesarean Section / Q000662:veterinary; D004285:Dogs; D005187:Fallopian Tubes; D005260:Female; D005306:Fertilization; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D011247:Pregnancy; D012661:Semen / Q000166:cytology / Q000502:physiology*; D013076:Sperm Count; D013094:Spermatozoa / Q000166:cytology / Q000502:physiology; D014599:Uterus / Q000473:pathology