Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effects of Feeding High Quality Roughage (Timothy Hay) during Growing Period on Growth Performance and Carcass Characteristics of Hanwoo Steers

육성기의 양질조사료(티머시 건초)급여가 거세한우의 성장 및 도체특성에 미치는 영향

  • Published : 2006.06.01
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Abstract

Effects of feeding high quality roughage (timothy hay) in growing period on growth performance and carcass characteristics during 24 month (5 month from 28 month to) in twenty of Hanwoo steers were investigated. The hanwoo steers were randomly allotted to 2 treatments (10 heads/treatment) ; rice straw group (control) and timothy hay group (treatment). The final body weights of rice straw group and timothy hay group on 28 month were 667.70 kg and 681.75kg, respectively. The daily gain of total period was slightly higher in timothy hay group (0.83kg ) than in rice straw group (0.81 kg). The daily roughage intake in the growing period was tended to be higher in timothy hay group (4.27kg ) than rice straw group (3.80 kg). The carcass grades (yield grade and quality grade) and Longissimus dorsi area were significantly higher in timothy hay group ($85.62 cm^2$, 2.02 and 2.20 point) than in rice straw group ($81.29 cm^2$, 2.00 and 1.60 point respectively) (p<0.05), and were affected by the feeding with high quality roughage in the growing period.

본 연구는 거세 한우에 대한 육성기의 양질 조사료(티머시 건초)의 급여 효과를 구명하기 위하여 거세우 20두를 공시하여 대조구, 시험구로 2개 처리구를 두고 생후 5개월령부터 28개월령까지 24개월간 비육시험를 실시한 결과는 다음과 같다. 28개월령 시험종료 시기의 체중은 대조구가 669.70kg, 시험구가 681.75 kg이었고, 일당 증체량은 시험구가 (0.83 kg) 대조구(0.81 kg)보다 다소 높은 경향이었다. 육성기의 두당 1일 조사료섭취 량은 시험구(4.27 kg)가 대조구(3.80kg)보다 크게 높은 경향이었다. 도축후 배최장근 단면적과 육량등급, 육질등급은 시험구(각 $85.62 cm^2$, 2.20 점, 2.20점)가 대조구(각 $81.29 cm^2$, 2.00점, 1.60 점)보다 크게 높아 통계적인 유의차 인정되었고(p<0.05), 육성기때의 양질 조사료 급여가 영향을 미친 것으로 사료된다.

Keywords

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