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RISS 인기검색어
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- 저자 : 김진욱 ( Chong Yung Yuk (검색결과 3 건)
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제요인이 유우의 비유량과 유지율에 미치는 영향에 관한 연구 제 1 보 사료내 조섬유 수준이 유우의 유생산 및 유지율에 미치는 영향
김진욱,육종융 ( Jin Uk Kim,Chong Yung Yuk ) 한국축산학회 1976 한국축산학회지 Vol.18 No.1
The effects of dietary fiber level on milk yield, milk fat content, and live weight were studied by using 3×3 Latin square experimental design. Three different dietary fiber levels have been tested with the follow ing dietary fiber content in the formula (dry matter basis): Lot A, 23% ; Lot B, 16% ; Lot C, 7%. The results obtained are as follows: 1. Dry matter intake per day during the experimental period among three treatnents showed little difference. 2. The animals in Lot C tended to give higher milk yield than those in Lot A or B, but the difference is not significant statistically. 3. The cows in Lot A gave the milk of higher fat content than those is Lot B or C, of which difference is statistically significant at 5% level. 4. Cows did not show any difference in the solids-eat-fat content of the milk they produced. 5. Animals showed significant differences in live weight increase in accordance with the different level of dietary fiber. The cows receiving the 16% fiber diet gave the most weight increase, followed by the animals in Lot C (Significant at 5% level).
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한국 소 비육에 있어서 사료 급여방식이 비육효과에 미치는 영향
육종융,김진욱 ( Chong Yung Yuk,Jin Uk Kim ) 한국축산학회 1975 한국축산학회지 Vol.17 No.3
Six Korean yearling bulls were employed in two experiments to study the effect of feeding methods, i.e., feeding concentrates and Gutted native grass hay separately (control feeds) or mixed together (test feeds). The double-reversal design was used in this experiment. The results obtained were summarized as follow: 1. Amount of hay intake in test group was larger than that in control group. but the difference was not significant. 2. Body weight gains of the bulls fed control feeds were heavier than that of test feeds. The average daily gain was 1.21㎏ for control group and 1.03㎏ for test group, but the difference was not statistically significant. 3. During the two experimental periods, bulls of control group consumed less DCP and TDN for 1㎏ body weight gain than that of test group. 4. The height of hip cross and length of heart girth of control bulls were longer than that of test bulls. Withers height and body length of test bulls, however, were longer than that of control bulls.
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조사료와 농후사료의 급여비율이 유우의 유생산 및 Rumen fluid 의 pH 에 미치는 영향
남기홍,김진욱,육종융 ( Kee Hong Nahm,Jin Uk Kim,Chong Yung Yuk ) 한국축산학회 1975 한국축산학회지 Vol.17 No.4
In order to get the information on the most economic feeding of dairy cows, the study was conducted with the different ratios of roughage to concentrate feed upon milk production, changes of body weight and pH of rumen fluid using 3×3 Latin square design. Three different feed ratios have been tested with the following proportions of roughages to concentrate; 40% : 60%(Treatment A), 50% : 50%(Treatment B) 60% : 40% (Treatment C) calculated on total digestible nutrient basis. The results obtained are as follows: 1. Dry matter intake per day during the experimental period among three treatments showed no differences. 2. Milk yield of Treatment A feeding lot tended to give higher yield than that of treatments B and C feeding lots, but the difference was not statistically significant. And production of 4% fat corrected milk was not different among the diets of treatment A, B and C. 3. Milk fat content of Treatment A feeding lot seemed to be lower than that of treatment B and C feeding lots, but the difference was not significant. 4. Content of solids-not-fat of milk was not different among treatments of A, B and C. 5. pH of rumen fluid showed no difference among the different treatments. 6. The daily water consumption per cow was higher in treatment A feeding lot than that of treatments B and C feeding lots, but the difference was not significant. 7. Treatment A gave the most increase in body weight followed by treatment B and treatment B gave the least increase in body weight during the experimental period, but the difference was not significant.
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