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RISS 인기검색어
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- 저자 : 김강식 ( Y . H . Cha (검색결과 4 건)
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김강식,박용윤,차영호,정재혁,박홍석 ( K . S . Kim,Y . Y . Park,Y . H . Cha,J . H . Chung,H . S . Park ) 한국축산학회 1989 한국축산학회지 Vol.31 No.4
A digestion trial with four wether lambs and a feeding trial with sixteen Holstein cows of late lactation were conducted to evaluate nutritive value of soyhull and its feeding value to lactating cows. Digestibility of dry matter, crude protein and crude fiber were 78.0, 69.9 and 74.0%, respectively and total digestible nutrient content of soyhull was about 68.8%. When soyhull was included in dairy concentrates for replacement of the same amount of corn at the levels of 5.5, 11.0 and 16.5% of concentrates (fed about 7㎏ a day), milk production gradually decreased but milk fat content was increased. When milk production per unit concentrate or total feed consumed was calculated soyhull was as efficient as corn in providing energy for milk production but the energy content of soyhull was lower than that of corn, which caused slightly lower milk production in cows fed a limited amount of concentrates containing soyhull.
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가성소다 암모니아처리가 볏짚의 사료가치 증진에 미치는 효과
신기준,강태홍,차영호,김강식 ( K . J . Shin,T . H . Kang,Y . H . Cha,K . S . Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.5
Two digestive trials were conducted to evaluate the effects of alkali-treatment (NaOH or NH₃) on digestibility and intake of rice straw. In digestion trial I, rice straw was treated with NaOH and NH₃; (1) untreated rice straw, (2) rice straw was chopped and sprayed with 4% NaOH, (3) rice straw was chopped and sprayed with 4% NaOH and pelleted, (4) rice straw was treated by NH₃. Four sheep were assigned to four treated rice straws according to the 4x4 latin square design. In digestion trial II, each four sheep were assigned to untreated rice straw and 3% NH₃ treated rice straw. NH₃ treatment increased crude protein content from 4.47 to 12.65% (P$lt;0.01) but slightly decreased NFE. NaOH treatment did not improve the chemical contents of rice straw except crude ash. Digestibility of crude protein, crude fat and crude fiber were significantly increased by NH₃ treatment while NaOH treatment increased only the digestibility of crude fiber. Cell wall content (ADF, Hemicellulose, Lignin, Cellulose, Silica) was slightly decreased by NH₃ treatment although not significant. Rice straw consumption was increased by NaOH and NH₃ treatment as well as pelleting treatment, powever no statistical significance was found (P$gt;0.05).
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알팔파의 사료가치연구 1 . 알팔파 가공시 영양가 변화에 관한 연구
차영호,문철성,강태홍,김강식 ( Y . H . Cha,C . S . Moon,T . H . Kang,K . S . Kim ) 한국축산학회 1990 한국축산학회지 Vol.32 No.8
In order to investigate feed values due to processing form of alfalfa, this study was carried out with 4 heads of sheep and Korean Native Cattle, respectively, for pellet, cube and hay of alfalfa imported in the year of 1984 and 1988. The results obtained were as follows; 1. Proximate composition Crude protein content was highest(24.66) in cube but lowest(17.60%) in pellet. crude fiber content was 29.0 and 17.82%, respectively, in pellet and cube, but NFE contents similar in all forms. 2. Cell wall constituent content ADF and NDF contents were 49.42 and 37.41%, respectively. in pellet but 31.15 and 22.03%, in cube. 3. Amino acid and mineral composition Contents of cystine and methioine were lowest in all forms. Ca, P and K were similar in all forms. Na content(%) was highest(0.45) in hay but lowest(0.05) in pellet. 4. Digestibility and digestible nutrientIn order to investigate feed values due to processing form of alfalfa, this study was carried out with 4 heads of sheep and Korean Native Cattle, respectively, for pellet, cube and hay of alfalfa imported in the year of 1984 and 1988. Digestibilities and nutrient values were high in cube. Dry mater digestibility and TDN value were 67.06 and 62.51%, respectively, in cube and 55.76 and 55.65% in pellet. 5. Because nutrient values of alfalfa are varied according to cutting stages and cultivating area such as above results, It is required to utilize alfalfa with evaluating exact feed components of alfalfa and considering feed cost between alfalfa and others.
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암모니아 처리 볏짚의 반추 가축에 대한 급여 효과 1 . 볏짚에 대한 암모니아처리 수준이 면양의 섭취량과 소화율및 질소 축적에 미치는 영향
신기준(K . J . Shin),이봉덕(B . D . Lee),배동호(D . H . Bae),차영호(Y . H . Cha),이근상(G . S . Lee),김강식(K . S . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.7
A digestion trial was carried out to evaluate the effectiveness of various levels of NH₃ treatment on the feed value of rice straw and to decide the optimum level of NH₃ treatment. Twenty four castrated Corridale sheep were randomly allotted to six treatments (0, l, 2, 3, 4 and 5% of NH₃ to air dried rice straw on weight basis), four heads(repelicates) per treatment. The results obtained were summarized as follows: 1. The NH₃ treatment markedly increased the N content of rice straw. The NDF content appeared to be decreased by the treatment. 2. The consumption of rice straw trend to be increased by ammoniation and significant(p≤ 0.05) increase was noted when the level of NH₃ was 5%. 3. Digestibility of DM increased sign ificantly(p≤0.05) when NH₃ treatment level was over 3%, while those of OM, NDF, GE over 2% and that of crude protein wash increased by and 2% NH₃ treatment, but not by over 3% of NH₃ treatment. 4. Digestibilities of DM, OM, NDF, GE slightly decreased at the NH₃ level of 5%. 5. Nitrogen retention increased significantly(p≤0.05) by ammoniation, while nitrogen retention rate increased until NH₃ treatment level of 3% but decreased when the NH₃ treatment level was over 3%. In conclusion, the NH₃ treatment increased rice straw consumption by sheep and improved digestibities of DM, NDF, crude protein and GE, thereby improving feed value. The optimum level of NH₃ treatment of rice straw seems to be 3-4% of rice straw on the basis of air-dried weight.
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