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KMID : 1025520110530050497
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Journal of Animal Science and Technology
2011 Volume.53 No. 5 p.497 ~ p.502
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A Survey on Calf Weaning Age in Hanwoo
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Yeo Joon-Mo
Lee Sung-Hoon
Ki Kwang-Seok
Hwang Jin-Ho
Lee Sung-Sil
Kim Wan-Young
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Abstract
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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.
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KEYWORD
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Weaning age, Hanwoo, Survey, Early weaning
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