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RISS 인기검색어
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- 저자 : 정승헌(S . H . Chung) (검색결과 4 건)
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남은 음식물 및 유기성 폐자원을 활용한 오리사료의 제조 및 그 가치평가
정승헌,이상락,김철,이도형,맹원재,권윤정,Chung, S.H.,Lee, S.R.,Kim, C.,Lee, D.H.,Maeng, W.J.,Kwon, Y.J. 한국가금학회 2000 韓國家禽學會誌 Vol.27 No.1
An experiment was conducted to evaluate feeding values of food and other organic wastes, and to determine their dietary effects on performance and carcass yield in ducks. A total of 156 meat type ducklings at the age of 25 days were housed in 12 pens and assigned to 4 treatments, in which the birds were fed for 21 days. One of 4 diets, commercial duck feed, raw food waste (RFW), fermented food waste(FFW) and mixture of 50% RFW and 50% FFW (R+FFW). Feed consumption was significantly higher (p<0.05) in the RFW groups. Body weight gain showed no significant differences between the control and other treatments. The feed consumption ratio was significantly higher in the RFW groups (p<0.05) than that of the other groups. Carcass yield was significantly higher in the R+FFW groups (p<0.05) than the other groups. The weight of liver per live body weight showed significant differences among the treatment groups (p<0.05). The length of intestine was significantly different from those of the treated groups(p<0.05).
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남은 음식물발효사료가 산란계의 난생산성과 계란품질에 미치는 영향
정승헌,이상락,김철,안정제,맹원재,권윤정,Chung, S.H.,Lee, S.R.,Kim, C.,Ahn, J.J.,Maeng, W.J.,Kwon, Y.J. 한국가금학회 2000 韓國家禽學會誌 Vol.27 No.1
An experiment was conducted to investigate the effects of feeding fermented food waste on the egg production and egg qualities in laying hens. A lot of 30 commercial layer(ISA Brown) at the age 58 weeks were placed in individual of 80% commercial feed and 20% fermented food waste(C80%+F20%), a mixture of 50% commercial feed and 50% fermented food waste (C50%+F50%), and a mixture of 20% commercial feed and 80% fermented food waste (C20%+F80%). Daily measurements were made on feed intake, egg production rate, egg weight, yolk color, Haugh unit, shell color during the experimental period. At the end of the experiment, body weight change and egg cholesterol contents were determined. The results indicate that up to 50% of basal diet could be supplied by fermented food waste with little depression in feed intake and efficiency in egg production (p<0.01). Egg weight, egg shell thickness and Haugh units were not significant different between the treatments and the control. Egg color quality improved with increasing the proportion of the fermented food waste in the diet.
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암모니아 처리 볏짚 급여에 의한 육성비육우의 증체시험과 경제성 분석
맹원재,정태영,장문백 정승헌 ( W . J . Maeng,T . Y . Chung,M . B . Chang,S . H . Chung ) 한국축산학회 1986 한국축산학회지 Vol.28 No.7
Air dry rice straw was treated with 3% anhydrous ammonia and aqueous ammonia (ammonia weight basis) in a stack during winter from October to January and feeding trials were conducted with 18 growing Holstein bulls weighing average of 231 Kg for 90 days. Treatment expenses per Kg rice straw with 3% anhydrous ammonia and 3% aqueous ammonia were 18.45 won and 28.28 won, respectively including ammonia cost, vinyl cost and labor expenses, thus, rice straw cost per Kg were 67 won for untreated straw and 85.45 and 95.28 won for anhydrous and aqueous ammonia treatment. Crude protein content of untreated rice straw was 4.2% and increased 2.2-2.4 times, and NDF & ADF content were decreased 6.5% & 5.6%, respectively sifter ammonia treatment. Rice straw intake by growing Holstein bulls, was increased 28.4% in anhydrous ammonia treated group and 43.3% in aqueous ammonia treated group and daily gains were increased 20.8% and 29.9%, respectively over untreated rice straw group. Feed conversions were 7.68 Kg/Kg gain in untreated rice straw groups and 6.95 and 6.89 Kg in anhydrous and aqueous ammonia treated groups, which ware improved 9.5% and 10.3%, respectively. Feed cost per Kg gain was 1267.91 won in untreated rice straw groups and 1,177.63 won and 1,151.57 won in anhydrous and aqueous ammonia treated rice straw groups, and feed cost reduction per Kg gain were 7.1% and 9.2% in anhydrous and aqueous ammonia treated rice straw groups, respectively.
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맹원재(W . J . Maeng),문홍식(H . S . Moon),정태영(T . Y . Chung),장문백(M . B . Chang),정승헌(S . H . Chung) 한국축산학회 1987 한국축산학회지 Vol.29 No.1
Rice straw was treated with 3.0% anhydrous ammonia and 1.5% and 3.0% aquous ammonia of the weight of air dry rice straw in a wire mesh silo and stack, and chemical composition and in vitro digestibilities were compared with anhydrous and aquous ammonia treated rice straw. Crude protein content of ammonia treated rice straw was increased by 2-3 fold as compared with untreated rice straw. Neutral detergent fiber (NDF) was decreased significantly (p $lt; 0.05) but acid detergent fiber (ADF) and cellulose content were not different from untreated and ammonia treated rice straw. Chemical composition of rice straw treated with anhydrous and aquous ammonia was not different. Of the total nitrogen added as 3% anhydrous and 3% aquous ammonia, 25.1-38.9% and 26.3-58.3% were retained in the rice straw and 61.1-74.9% and 41.7-73.7% were lost in this experiment. Dry matter, NDF, ADF and cellulose digestibilities of rice straw were increased significantly by ammonia treatment (p $lt; 0.01) and improvement of digestibility was higher in rice straw treated with aquous ammonia as compared with anhydrous ammonia. Digestibility of rice straw treated with 3.0% aquous ammonia was higher than that with 1.5% aquous ammonia (p $lt;0.05).
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