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고구마 펠릿트 사료의 급여수준이 부로일러의 영양소이용율에 미치는 영향
곽종형,안병홍,한인규 ( Chong Heong Kwack,Beong Hong Ahn,In K . Han ) 한국축산학회 1976 한국축산학회지 Vol.18 No.5
This experiment was carried out to investigate the effect of different levels of pelleted sweet potato on the nutrients utilization of broiler chickens. The results obtained were summarized as follow: 1. The utilization of dry matter was slightly increased as the replacement level of sweet potato was higher. However, there were no statistical differences between treatments. 2. The utilization of crude protein in starter chickens(0-4 weeks) was slightly improved as the replacement level of sweet potato increased but that of growing chickens (5-8 weeks) was decreased as the substitution level of sweet potato increased. 3. The utilization of crude fiber for both starter and growing chickens was significantly (P$lt;0.05) decreased as the replacement level of sweat potato was increased. 4. The utilization of nitrogen free extract (NFE) was slightly improved as the replacement level of sweet potato was increased. On the other hand the utilization of crude fat was not affected by the level of sweet potato used in the broiler rations. 5. In the comparative utilization of nutrients between starter and growing chicken, the utilization of dry matter and crude fiber was higher for the growing chickens than for the starter. Crude protein was better utilized or the starter than for the growing chickens. However, utilization of crude fat and NFE was not affected.
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