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가축에 대한 볏짚 사료이용증진에 관한 연구 제3보 볏짚의 채식량과 소화율에 미치는 급여농후사료량과 질의 영향
김강식,이등임,구강훤일 ( Kang Shik Kim,Minoru Itoh,Kenichi Kameoka ) 한국축산학회 1976 한국축산학회지 Vol.18 No.3
In order to study the effects influencing the digestibility of crude fiber as an index for improving the consumption and availability of rice straw according to the quality and quantity of concentrate the feeding and digestion trial was carried out employing Japanese castrated goats at the grow ing stage. 1. Japanese native goats were fed 100g concentrate per day which contained 6.4, 11.7, 12.0 and 17.0% DCP in experiment 1. There were no significant difference in rice straw intakes of goats treated. However, the significant difference in digestibility of crude fiber (P$lt;0.05) was found. The digestibility of crude protein increased as the level of crude protein increased (P$lt;0.01). 2. The consumption of rice straw decreased according to increasing consumption of concentrate (P$lt;0.01) in experiment 2 designed for varying the supply of concentrate which contained 11.7 DCP in the levels of 500, 375, and 250g per day. The digestibility of nutrients except the crude fiber increased as the consumption of concentrate increased. However, the digestibility of crude fiber showed reverse effect compared to the nutrients (P$lt;0.01). 3. The multiple regression was studied between the dry matter digestibility and DCP intake, TDN intake, rice straw intake and DM intake: Y=40.1265+1.076TDN-0.472DCP-0.065RSIN* The multiple regression between the crude fiber digestibility and those above mentioned as follows: Y=26.7905-3.684TDN+38.316DCP**-0.138RSIN**+0.382DMIN. And that between digestibility of crude fiber and those were as follows: Y=38.886-4.356TDN**+26.545DCP**+0.0038RSIN-0.0297DMIN. 4. The linear regression between TDN consumption per ㎏ body weight and digestibility of crude fiber was established as follows: Y=68.33-1.142X The optimum TDN consumption per ㎏ body weight was estimated as 14g for digestion of crude fiber. 5. Between DCP consumption per ㎏ body weight and digestibility of crude fiber the following equation was found: Y=60.82-6.408N The optimum DCP consumption per ㎏ body weight eras found as 1.2g for digestion of crude fiber.
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