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- 저자 : 배동호 ( Kang Shik Kim (검색결과 1 건)
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거세우의 육성 비육시 조사료와 농후사료의 급여 비율이 비육 효율에 미치는 영향
김강식,김영길,배동호 ( Kang Shik Kim,Young Kil Kim,Dong Ho Bae ) 한국축산학회 1978 한국축산학회지 Vol.20 No.6
The experiment was conducted to study the effects of feeding different ratio of concentrate and roughage to growing-fattening Korean native steers with 1 S heads. The treatment were composed of 3 groups of T₁ (concentrate to roughage ratio, 80:20), T₂ (concentrate to roughage ratio, 70:30) and T₃ (concentrate to roughage ratio, 60:40). The results obtained were summarized as follows: 1. Average daily weight gain of T₁, T₂ and T₃ for period 1, period 2 and period 3 were 0.78, 0.84, 0.76; 0.92, 0.92, 0.93; and 0.83, 0.87, 0.78; respectively. The daily gain of T₂ group was significantly higher than that of T₃ group for total period. 2. The digestibility of crude protein and NFE of different groups showed little variation, however, and that of crude fiber decreased significantly as the ratio of concentrates increased for all 3 periods. 3. The daily TDN intake of T₁, T₂ and T₃ groups far total period were 5.15, 5.56 and 5.53 ㎏, respectively, indicating more consumption for T₂ group. 4. The TDN requirement of T₁, T₂ and T₃ groups for total period were 6.11, 6.35 and 6.48, respectively. 5. The dressing percentage and edible; parts percentage of T₁, T₂ and T₃ groups were 61.2, 51.0; 61.5, 50.0 and 58.9, 48.6, respectively, showing lower percentage for higher roughage group.
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