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RISS 인기검색어
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- 저자 : 이남형 (검색결과 261 건)
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보리짚의 사료가치증진에 관한 연구 제1보 화학적 , 물리적 , 처리가 보리짚의 소화율에 미치는 영향
이남형,김춘수,정창조,육종융 ( Nam Hyung Lee,Chun Su Kim,Chang Cho Choung,Chong Yung Yuk ) 한국축산학회 1978 한국축산학회지 Vol.20 No.2
Present experiment was carried out to study the effects of chemical or physical treatment on the digestibility of barley straw. The results obtained were as follows: 1. The content of NDF and ADF was not different between rice and barley straw. The content of indigestible components (lignin and silica) in barley hull was lower than the barley and rice straw. 2. In vivo dry matter digestibility and TDN value in the alkaline treated barley straw was improved as sodium hydroxide level increased (0%, 2%, 4%). Feeding value of steam-alkaline treated straw was higher than the non-steam alkaline treated straw (Table 3) 3. When molasses and tallow were added in at 10 and 3% respectively to increase the energy content of barely hull 40% base pellet diet, TDN value was comparable with commercially available compound feed (TDN 75.6), but TDN-feed cost relative inlet was 88% of the compound feed. As increasing the level of tallow over 3%, feeding the barley-hull base diet became less favorable due to the poor acceptability.
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개미산 또는 개미산과 훠름알데하이드를 처리한 목초 싸일레지가 Jersey 미경산우의 제1위내 미생물 단백질 합성과 단백질 분해율에 미치는 영향
이남형,루크,암스트롱 ( Nam Hyung Lee,J . A . Rooke,D . G . Armstrong ) 한국축산학회 1985 한국축산학회지 Vol.27 No.8
The aim of the experiment was to assess the effect of applying formic acid at ensilage or formic acid/formaldehyde to the standing crop of herbage before ensiling upon the subsequent digestion of the silages by Jersey heifers. Unwilted grass silages were made from perennial rye; rass ensiled at a DM of 220㎏^(-1) with application of 2.22 liters ton of formic acid and wilted grass silages was made by spray to the standing crop of herbage with 90 liters ㏊^(-1) of a solution containing 50 liter formalin, 500㎖ of 10% Tween 20, and 2.5 liter water giving an application rate of 61g formaldehyde ㎏^(-1) herbage crude protein. The silages were fed to cattle equipped with rumen cannulae and duodenal re-entrant cannulae. Results from fermentation in the rumen and from the digestion of organic matter showed major differences between silages. The efficiency of rumen microbial nitrogen synthesis was also affected by additive treatment. Microbial N synthesized per ㎏ organic matter apparently digested in the rumen was 20g for the formic acid silage and 17.68 for the formic acid/formaldehyde silage. Degradability of feed N in the rumen was similar for two silages.
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이남형,오스코푸 ( Nam H . Lee,E . R . OrsKov ) 한국축산학회 1982 한국축산학회지 Vol.24 No.4
This experiment was carried out to compare the effect of ammonia gas and aqueous ammonia as well as the effect of levels (2.5% or 3.5%) on the digestibility of the barley straw by sheep. The results obtained are as follows: 1) There were no significantly different among treatments in the digestibility of dry matter, organic matter and nitrogen of ammonia treated barley straw 2) The degradation of dry matter of barley straw was increased from 40.66% to 60.26% by ammonia treatment after incubation of 72 hours in the rumen. 3) The voluntary feed intake of ammoniated barley straw in the sheep was shown similar pattern among the treatments regardless of the type and the levels of ammonia application. This result of the experiment indicates that the nutritive value of barley straw could be increased by the use of 2.5% ammonia gas or aqueous ammonia
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면양의 제1위내 미생물 단백질합성에 미치는 요인과 소장에서 아미노산 이용에 관한 연구 2 . 소장에서 아미노산 이용
이남형,암스트롱 ( Nam Hyung Lee,D . G . Armstrong ) 한국축산학회 1985 한국축산학회지 Vol.27 No.8
This experiment was conducted to examine the effects of different carbohydrate source and nitrogen source upon the utilization of amino acids in the small intestine of sheep. The results obtained are as follows: 1) For the quantities of TAA-N, EAA-N and NEAA-N passing at the duodenum and ileum except NEAA-N passing at the ileum were no significant differences (p$gt;0.05) between diets. The quantities of NEAA-N passing at the ileum for the diets containing meat and bone meal were significantly higher (P$lt;0.05) than the diets containing soyabean meal. The mean values for the proportionate disappearance apparently digested TAA-N, EAA-N and NEAAN within the small intestine for four diets were 0.692±0.0449, 0.702±0.0132, and 0.682±0.726, respectively. 2) There were no significant differences (p$gt;0.05) in duodenal individual amino acid flow between diets with the exception of aspartic acid and glycine. The amounts of each amino acid in duodenal digesta, expressed as a proportion of the amounts ingested for the four diets, were shown that there were net gains of EAA with the exception of arginine and NEAA with the exception of glutamic acid, glycine and proline prior to the small intestine. 3) Within the small intestine, there were no significant losses of each EAA (p$gt;0.05) but significant losses of aspartic acid and glycine of NEAA between diets (p$lt;0.01). The mean values of the proportionate losses of methionine, alanine and lysine within the small intestine were 0.816±0.04, 0.767±0.04, and 0.732±0.01, respectively.
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