http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김정일,맹원재,장문백 ( J . I . Kim,W . J . Maeng,M . B . Chang ) 한국축산학회 1986 한국축산학회지 Vol.28 No.2
Rice straw was treated with 4% anhydrous ammonia in a wire mesh silo and stack and 4% sodium hydroxide of the weight of rice straw dry matter (3.3% in a air dry rice straw). Treatment period with ammonia was winter time from September 23 to February 14, and chopped rice straw with 4-5 cm was sprayed with sodium hydroxide dissolved in water of 50% of straw weight and stacked for 96 hours, and then dried in a shadow. In vitro digestibility studies and goat metabolism trials with 4 × 4 Latin square design were conducted. Crude protein content of ammonia-treated rice straw, compared with 4.2% of untreated rice straw, was 11.9% (wire mesh silo) and 9.6% (stack) and increased 2.8 fold and 2.3 fold, respectively. Crude protein content of sodium hydroxide treated rice straw was 3.9% and decreased 7.1% over untreated rice straw. Digestible crude protein contents of untreated and sodium hydroxide treated rice straw were 0.6% and 0.5%, respectively, however, that of ammonia treated rice straw was 7.6% (wire mesh silo) and 5.6% (stack), which were considerably higher than untreated and sodium hydroxide treated rice straw. NDF, ADF, and cellouse contents of rice straw were decreased by ammonia and sodium hydroxide treatment. In vitro dry matter, NDF, ADF and cellouse digestibilities were increased significantly by ammonia and sodium hydroxide treatment (P$lt;0.01). Increases of in vitro digestibilities were the highest in sodium hydroxide treated rice straw and followed by ammonia treated rice straw in wire mesh silo. However, in vivo digestibilities of rice straw were the highest with ammonia treated rice straw in a wire mesh silo and were not different between ammonia treated rice straw in stack and sodium hydroxide treated rice straw. Rice straw intake increased by 62% in ammonia treatment in a wire mesh silo, by 26% in ammonia treatment in stack and by 35% in sodium hydroxide treatment (P$lt;0.05). Water intake and urine excretion were significantly increased by ammonia and sodium hydroxide treatment of rice straw (P$lt;0.05) and highest with goat fed sodium hydroxide treated rice straw. Digestible dry matter and TDN contents of untreated and ammonia treated in a wire mesh and stack and sodium hydroxide treated rice straw were 48.6%, 57.4%, 54.3% and 52.9%, and 40.5, 53.9, 47.7 and 47.9, respectively. Concentration of total VFA in rumen fluid was the highest in ammonia treated rice straw in a wire mesh silo and composition of individual VFA was not significantly different among treatment.
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.
Coenzyme Q10 다량 발현 미생물을 이용한 Rumen Simulation Continuous Culture (RSCC) System 반추위 내 미생물 발효 특성에 대한 연구
배귀석,여준모,장문백,김종남,Bae, G.S.,Yeo, J.M.,Chang, M.B.,Kim, J.N. 국립한국농수산대학교 교육개발센터 2017 현장농업연구지 = Journal of practical agricultural resear Vol.19 No.1
This study was conducted to confirm the rumen fermentation characteristics of large-scale CoenzymeQ10(CoQ10) producing bacteria R. spharoides in rumen. We conducted in vitro continuous culture test to investigate the characteristics of rumen fermentation with 5% R. spharoides as a direct fed microorganism. A rumen microbial fermentation characteristic has stability at after 12 days for 15 day of experimental period. pH value, NH<sub>3</sub>-N, microbial protein synthesis, ADF digestibility and NDF digestibility were not shown significantly differences between control and treatment. However, UDP was significantly higher in treatment than control (p<0.05). CoQ10 concentration was 336.0mg/l with 5% R. spharoides. On the other hands, CoQ10 was not detected without R. spharoides. Our study was shown that R. spharoides can produce CoQ10 in rumen environment without harmful effects on rumen fermentation parameter. CoQ10 in rumen may transfer into cow milk through cow metabolism. This strategy might be helpful for producing functional dairy cow milk.