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윤덕영
- KOREAN POULTRY JOURNAL
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- v.6 no.6 s.56
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- pp.90-92
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- 1974
다음은 중앙일보 양돈장번식주임으로 이쓴 윤덕영씨가 본인자신이 농장에 근무하면서 실제 체험한 바를 조기 이유의 실제와 이론이란 제목으로 일반 양축가에 소개하고 있다. 윤덕영씨는 우리나라에서 일반적으로 50$\~$60일 사이에 이유를 실시하여 모돈에게 너무 체력적으로 손실을 가져와 생산성을 떨어뜨려 수익면에서 많은 손해를 보고 있어 선진국에 비해 많은 손실을 입고 있다고 자신이 체험을 통해 조기이유 가능성을 소개하면서 우리나라에서도 최소한 20일까지 가능할 수 있다고 시사하여 매우 고무적인 조언을 주고 있어 본지를 통해 소개한다.
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Yeo, Joon-Mo;Lee, Sung-Hoon;Ki, Kwang-Seok;Hwang, Jin-Ho;Lee, Sung-Sill;Kim, Wan-Young
- Journal of Animal Science and Technology
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- v.53 no.5
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- pp.497-502
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- 2011
The present survey was conducted to provide basic information on Hanwoo calf weaning age and farmer's understanding of early weaning. Eight hundred and sixty-two Hanwoo breeding farms from all nine provinces were surveyed via personal interviews. The percentages of farms categorized by herd size were 30.5%, 32.8%, 26.0% and 10.7% for <50 heads, 51~100 heads, 101~200 heads and >200 heads, respectively. The percentage of farms weaning calves at three months of age were 39.2% and 12% of farms weaned calves less than two months of age. But the percentage of farms weaning at or over four months of age were still high, being 16.1% at four months of age and 16.6% over five months of age, respectively. The result of the present study showed that calf weaning age in Hanwoo was inconsistent and higher percentage of farms wean calves at three months of age among the surveyed farms. The improvement of cow reproductive performance was answered as the biggest merit of early weaning.
https://doi.org/10.5187/JAST.2011.53.5.497 인용 PDF KSCI