JARB Journal of Animal Reproduction and Biotehnology

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

Article Search

Article
Split Viewer

Reproductive & Developmental Biology 2013; 37(1): 23-28

Published online March 31, 2013

Copyright © The Korean Society of Animal Reproduction and Biotechnology.

한우 암소의 인공수정 실패율에 관한 조사연구

박새롬,김훈,이영섭,김진우,김종복,송영한,이학교,이성진

강원대학교 동물생명과학대학

Abstract

This study was carried out to investigate the influence of artificial insemination (AI) failure in 1,619 Korean native cows at Gangwon East area, Korea. The average AI failure rate was 37.02% in the cows and the highest rate was 40.85% in Yangyang-city. Based on the parity in the cows, the AI failure rate was 49.14% and 29.91% in the first and fifth parity cows, respectively. Whereas cows until fifth parity were decreased in AI failure, cows with sixth or more parity showed an upturning AI failure trends with the increasing of parity number. AI failure rate incidence according to the rump fat thickness measured by ultrasound was 28.9% and 33.4% at 5 mm to 10 mm and over than 15 mm, respectively. There was a positive correlation (0.2186) between AI failure rate of mother and that of their offspring cows. That is, offspring of dams with high AI failure rate showed also higher AI failure than those of dams having lower AI failure rate. In conclusion, these results indicate that the AI failure rate was closely related to the rump fat thickness, parity number, and conception rate of mother cows. In addition, these results might strengthen the basis to improve the reproductive performance in Korean native cows.

Keywords: Artificial insemination, Korean native cow, Rump fat, Parity

Article

Reproductive & Developmental Biology 2013; 37(1): 23-28

Published online March 31, 2013

Copyright © The Korean Society of Animal Reproduction and Biotechnology.

한우 암소의 인공수정 실패율에 관한 조사연구

박새롬,김훈,이영섭,김진우,김종복,송영한,이학교,이성진

강원대학교 동물생명과학대학

Abstract

This study was carried out to investigate the influence of artificial insemination (AI) failure in 1,619 Korean native cows at Gangwon East area, Korea. The average AI failure rate was 37.02% in the cows and the highest rate was 40.85% in Yangyang-city. Based on the parity in the cows, the AI failure rate was 49.14% and 29.91% in the first and fifth parity cows, respectively. Whereas cows until fifth parity were decreased in AI failure, cows with sixth or more parity showed an upturning AI failure trends with the increasing of parity number. AI failure rate incidence according to the rump fat thickness measured by ultrasound was 28.9% and 33.4% at 5 mm to 10 mm and over than 15 mm, respectively. There was a positive correlation (0.2186) between AI failure rate of mother and that of their offspring cows. That is, offspring of dams with high AI failure rate showed also higher AI failure than those of dams having lower AI failure rate. In conclusion, these results indicate that the AI failure rate was closely related to the rump fat thickness, parity number, and conception rate of mother cows. In addition, these results might strengthen the basis to improve the reproductive performance in Korean native cows.

Keywords: Artificial insemination, Korean native cow, Rump fat, Parity

JARB Journal of Animal Reproduction and Biotehnology

qr code

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