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Surveys on Reproduction Status and Calf Production of Hanwoo Farmers

한우 농가의 번식우 관리와 송아지 생산 현황

  • Yang, Byoung-Chul (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Kang, Sung-Sik (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Kim, Ui-Hyung (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Jang, Sun-Sik (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Yang, Boh-Suk (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Lee, Seok-Dong (Hanwoo Research Institute, National Institute of Animal Science, RDA) ;
  • Cho, Sang-Rae (Hanwoo Research Institute, National Institute of Animal Science, RDA)
  • 양병철 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 강성식 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 김의형 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 장선식 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 양보석 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 이석동 (농촌진흥청 국립축산과학원 한우연구소) ;
  • 조상래 (농촌진흥청 국립축산과학원 한우연구소)
  • Received : 2017.08.17
  • Accepted : 2017.09.15
  • Published : 2017.09.30

Abstract

This study was conducted to investigate the breeding status of farms to improve the production efficiency of Hanwoo calf. The study was conducted on 45 farms divided into two groups. This study was conducted to investigate the breeding size and breeding area of Hanwoo cows. The average age at first delivery of Hanwoo was 28.7 months. The number of artificial insemination per pregnancy was $1.45{\pm}0.32$, and the number of artificial insemination days after birth was 119.8 days. Conception rates were $75.2{\pm}16.93%$ for small farms and $70.6{\pm}17.46%$ for medium sized farms and $71.4{\pm}11.03%$ for large farms. When we looked at farming methods, 'the farmers using estrus observation aids' had 10.42% higher calf production rate than the 'unused farmers'. The farms vaccinated with IBR and BVDV for breeding cattle showed a 4.41% decrease in abortion, stillbirth and mortality. According to farming conditions, conception rate and delivery rate improved by 3.47% and 18.29%, respectively, when grazing and exercising were performed. Observation, immunization and grazing were found to be important indicators for improving calf production efficiency in Hanwoo farm. This study can be used as a research data to improve the reproductive rate of farmhouse sites through the survey on the breeding status of Hanwoo farmers.

본 연구는 한우 송아지 생산효율 향상을 위한 농가 번식 실태를 조사하였다. 한우 사육 규모별, 지역별로 나누어 45개 농가의 가임암소를 대상으로 조사를 실시하여 다음과 같은 결과를 얻었다. 한우의 최초 분만월령은 평균 28.7개월령이었다. 수태당 인공수정 횟수는 $1.45{\pm}0.32$회였으며, 분만 후 인공수정 일수는 119.8일이었다. 수태율은 소규모 농가가 $75.2{\pm}16.93%$로 중규모($70.6{\pm}17.46%$) 및 대규모 농가($71.4{\pm}11.03%$)보다 높은 것으로 나타났다. 번식률 상위 농가의 사육 방식을 보면, '발정관찰 보조기구를 사용하는 농가'가 '그렇지 않은 농가'보다 송아지 생산율이 10.42% 높았다. 번식소에 대해 IBR과 BVDV 예방접종을 실시한 농가는 유사산 폐사율이 4.41% 감소한 것으로 나타났다. 또한 농가여건에 따라 방목과 운동을 한 경우, 수태율과 분만율이 각각 3.47%, 18.29% 향상되는 것으로 나타났다. 본 조사 결과를 통해 발정관찰, 예방접종, 방목이 한우농가에서 송아지 생산 효율을 높이는데 중요한 지표로 나타났다. 한우 사육 농가의 번식실태 조사를 통해 농가 현장의 번식률 향상을 위한 연구 자료로 활용이 가능할 것이다.

Keywords

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