Intratubal insemination with fresh semen in dogs.
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.
Tsutsui
Toshihiko
T
Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan.
Hori
Tatsuya
T
Yamada
Ayako
A
Kirihara
Nobuyuki
N
Kawakami
Eiichi
E
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