JARB Journal of Animal Reproduction and Biotehnology

OPEN ACCESS pISSN: 2671-4639
eISSN: 2671-4663

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Journal of Embryo Transfer 2013; 28(1): 25-30

Published online March 31, 2013

Copyright © The Korean Society of Animal Reproduction and Biotechnology.

Prediction of Parturition Date Based on Vaginal Cytology in Small Dogs

박철호, 양준열, 박준태, 이상호, 박인철, 김종택, 서국현, 오기석, 손창호

전남대학교 수의과대학, 강원대학교 수의(학부)대학

Abstract

The aim of this study was to estimate of ovulation time and parturition day at the same time as breeding in small dog by vaginal cytology and to confirm the accuracy by comparing the expected parturition day and the real one. Characteristic features of vaginal cytology during the estrous cycle were the high proportion of large intermediate cell, superficial cell, anuclear cell and erythrocyte in proestrus, superficial cell and anuclear cell in estrus, parabasal cell, small intermediate cell, large intermediate cell and leukocyte in diestrus, parabasal cell and small intermediate in anestrus, respectively. When day 0 was the parturition day, the period of pregnancy is 67.45(64~75) days when the cornification index (CI) is over 90%. Also, on the basis of ovulation day, 63.65(59~66) days was confirmed, and 57.0(52~60) days was confirmed based on the first day of diestrus. There are the gap of 4 days between the day being over 90% in CI and ovulation day. On the basis of this, when expecting parturition day based on the day being over 90% in CI by vaginal cytology, 18.1% was produced in the same of the expected parturition day and the real one, 30.3% and 33.3% were produced in the gap of one day and two days, respectively so, the accuracy within two days was 81.7%. In addition, based on the first day of diestrus, it also was identified to 81.7% as the difference between the expected parturition day and the real one within 2 days. It demonstrated there are any difference between any expected parturition day by vaginal cytology. Thus on the basis of the day of being over 90% CI, it is fully thought to using clinically due to the possibility of prediction the parturition day at the same time as the determination of the proper time of the optimal mating time.

Keywords: ovulation time, parturition day, vaginal cytology, estrous cycle, cornification index

Article

Journal of Embryo Transfer 2013; 28(1): 25-30

Published online March 31, 2013

Copyright © The Korean Society of Animal Reproduction and Biotechnology.

소형견에서 발정주기 동안 질 세포 검사에 의한 분만일의 예측

박철호, 양준열, 박준태, 이상호, 박인철, 김종택, 서국현, 오기석, 손창호

전남대학교 수의과대학, 전남대학교 수의과대학, 전남대학교 수의과대학, 전남대학교 수의과대학, 강원대학교 수의(학부)대학, 강원대학교 수의(학부)대학, 전남대학교 수의과대학, 전남대학교 수의과대학, 전남대학교 수의과대학

Prediction of Parturition Date Based on Vaginal Cytology in Small Dogs

박철호, 양준열, 박준태, 이상호, 박인철, 김종택, 서국현, 오기석, 손창호

전남대학교 수의과대학, 강원대학교 수의(학부)대학

Abstract

The aim of this study was to estimate of ovulation time and parturition day at the same time as breeding in small dog by vaginal cytology and to confirm the accuracy by comparing the expected parturition day and the real one. Characteristic features of vaginal cytology during the estrous cycle were the high proportion of large intermediate cell, superficial cell, anuclear cell and erythrocyte in proestrus, superficial cell and anuclear cell in estrus, parabasal cell, small intermediate cell, large intermediate cell and leukocyte in diestrus, parabasal cell and small intermediate in anestrus, respectively. When day 0 was the parturition day, the period of pregnancy is 67.45(64~75) days when the cornification index (CI) is over 90%. Also, on the basis of ovulation day, 63.65(59~66) days was confirmed, and 57.0(52~60) days was confirmed based on the first day of diestrus. There are the gap of 4 days between the day being over 90% in CI and ovulation day. On the basis of this, when expecting parturition day based on the day being over 90% in CI by vaginal cytology, 18.1% was produced in the same of the expected parturition day and the real one, 30.3% and 33.3% were produced in the gap of one day and two days, respectively so, the accuracy within two days was 81.7%. In addition, based on the first day of diestrus, it also was identified to 81.7% as the difference between the expected parturition day and the real one within 2 days. It demonstrated there are any difference between any expected parturition day by vaginal cytology. Thus on the basis of the day of being over 90% CI, it is fully thought to using clinically due to the possibility of prediction the parturition day at the same time as the determination of the proper time of the optimal mating time.

Keywords: ovulation time, parturition day, vaginal cytology, estrous cycle, cornification index