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- 저자 : 김성겸 ( Y . G . Ko (검색결과 2 건)
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사료내 구리및 유황의 공급원이 브로일러의 생산성에 미치는 효과
고영길,한인규,하종규,김성겸 ( Y . G . Ko,In K . Han,J . K . Han,S . K . Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.10
As a preliminary study to clarify whether growth promotion effect of dietary copper sulfate is due to either copper canon, sulfate, or to the whole copper sulfate salt, 3 day old broiler chicks were fed the experimental diets containing graded levels of DL-methionine, copper sulfate, copper carbonate and sodium sulfate for 3 weeks. Chicks fed copper carbonate failed to show normal performance and showed significantly higher mortality. Although statistics did not show any significance, chicks fed higher levels of the three other materials showed slightly improved performances eventhough they were fed together with antibiotics. It could be inferred that dietary copper alone or copper without being combined to sulfate cannot stimulat chick`s growth at all.
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아미노산 첨가수준에 따른 산란계용 사료의 단백질 절약효과
곽종형,강대진,고영두,하정기,한인규,김성겸 ( C . H . Kwack,D . J . Kang,Y . D . Ko,J . K . Ha,In K . Han,S . K . Kim ) 한국축산학회 1981 한국축산학회지 Vol.23 No.6
To investigate the protein sparing effect of DL-methionine and L-lysin on the laying hen ration, the present experiment with a total of 288 hens (Hi-sex commercial hens) was carried out for a period of 14 weeks (23-36 weeks). In this experiment 8 treatments ((1) control, CP 16%; (2) basal, CP 14% (3)basal +L-lysine 0.1% ; (4) basal+L-lysine 0.2% ; (5) basal+DL-methionine 0.1 % ; (6) basal+DL-methionine 0.2%; (7) basal+L-lysine 0.1%+DL-methionine 0.1 %; and (8) basal+L-lysine 0.2%+DL-methionine 0.2%) were employed. Metabolism trial was conducted at the end of feeling trial. The results obtained are summarized as follows; 1. The highest egg production was obtained from the group of basal+L-lysine 0.2%+DL-methionine 0.2% and the lowest from the group of basil +L-lysine 0.2%. But no statistically significant difference was found among all the treatments. 2. The heaviest egg weight was obtained from the group of basal+L-lysine 0.2%+DL-methionine 0.2% and the lightest was obtained from basal+L-lysine 0. 1%. But no significant difference was found among all the treatments. 3 . In feed intake, significant (p$lt;0.05) differences were found among treatment groups. Higher feed consumptions were generally resulted from the groups supplemented with L-lysine and/or DL-methionine. 4. Best, feed efficiency was obtained from control group, and the worst from the group of basal+L-lysine 0.1%+DL-methionine 0.1%. But no significant difference was found among all the treatments. 5. Nutrient utilization was not affected by supplementation with L-lysine and/or DL-methionine. 6. Feed cost per Kg egg mass production was in order of basal, basal +L-lysine 0.1%, basal+L-methionine 0.1%, basal+L-lysine 0.2%+DL-methionine 0.2%, control, basal+L-lysine 0.2%, basal+L-lysine 0.1%+DLmethionine 0.1%, and basal+DL-methionine 0.2%. Therefore, based on the results of this experiment, it is concluded that supplementation of L-Lysine and DL -Methionine at the level of 0.2% respectively with the basal ration(14% protein) would be able to spare 2% dietary protein.
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