Studies on vaginal cytology after induction of estrous in the bitch
1988
Kang, B.K. | Choi, H.S. | Son, C.H. | Oh, K.S. | Lee, C.B. (Chonnam National Univ., Kwangju (Korea R.). Coll. of Agriculture) | Na, J.S. (Chonanm National Univ., Kwangju (Korea R.). Coll. of Agriculture)
The present study was carried out to investigate the estrous behavior and vaginal smear after induction of estus with exogenous hormones in the premature, metestrous and anestrous bitches. In a total of 21 bitches(Mixed breed: 16, Jindo breed: 5), from 10 months to 5 years of age and weighing 8 to 15 kg the change of vaginal smear and the estrous behavior before and after induction of estrus was studied. In the treatment A(They were given the PGF2alpha, estrone, estradiol-17beta, PMSG and HCG) proestrus commenced in 10.16+-1.44(Mean+-SEM) days after treatment. The mean duration of proestrus and estrus was 7.50+-1.44 and 13.50+-3.44 days, respectively. In the treatment B(They were given the PMSG and HCG) proestrus commenced in 5.53+-0.59 days after treatment. The mean duration of proestrus and estrus was 6.60+-0.71 and 14.60+-1.14 days, respectively. All of the 6 bitches in the treatment A showed vulval swelling and vaginal discharge. 14 of the 15 bitches in the treatment B showed vulval swelling and vaginal discharge. However, all of the treatment A and B showed male acceptance. The main change of vaginal smear in proestrus and estrus after induction of estrus was an increase in the proportion of anuclear and superficial cells associated with a decrease in small intermediate and parabasal cells. By the estrous behavior and vaginal smear the estrus was induced in all the premature, metestrous and anestrous bitches
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