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한우와 샤로레교잡에 의한 신종한우육성 연구 2 . 사양형태별 한우와 샤로레 1 대잡종 발육과 번식능력 비교
이근상,나기준,김희석,윤철준 ( K . S . Lee,K . J . Na,H . S . Kim,C . J . Yun ) 한국축산학회 1985 한국축산학회지 Vol.27 No.4
This study was carried out to investigate the growth rate, the age and body weight at puberty during the growing period in Korean native cattle (K) and Charolais crossbreed (CK). 14 Korean native bulls or heifers and 14 CK were alloted to two nutritional levels (Standard level and Low level groups based on the NRC) during the experimental period. The growth rate of CK was 28%-55% faster n bulls and 33%-26% in heifers than that of K (P$lt;0.01). The feed efficiency of CK was 6%-10% less in bulls and 12%-8% in heifers than that of K. The dressing percent was 60.5-61.9% in CK and 56.7-59.9% in K. The age at puberty was different between regimes (P$lt;0.05) and the average body weight at puberty was the same between breeds (P$lt;0.05).