Intratubal insemination with fresh semen in dogs |
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| Authors: | Tsutsui Toshihiko Hori Tatsuya Yamada Ayako Kirihara Nobuyuki Kawakami Eiichi |
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| Institution: | Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan. |
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| 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. |
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