보리짚 - 계분 싸일레지가 한우의 성장능력에 미치는 영향

김춘수,이남형 ( Chun Su Kim,Nam Hyung Lee ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5

This experiment was carried out to determine the digestible nutrients in alkali treated barley straw-manure silage and to assess the growth performance of yearling cattle, when wild grass hay was partly substituted with straw-manure silage for 6 months. The results obtained are as follows : 1) For digestibility, DCP and TDN value of wild grass hay were 0.32% and 28.99%, respectively, while barley straw-manure silage contained DCP of 14.39% and 62.58 for TDN. 2 ) Six native bull calves, weighing average 110㎏, were used for the feeding trial. Average daily gain for the wild grass fed was 0.27㎏, compared with 0.49㎏ for the silage group. This was 81% increase in weight gain for the silage fed over the grass hay fed. The feed efficiency was 14.78 for the grass hay fed, compared with 8.61 for the silage fed The efficiency improvement of the silage fed was 40% over the grass hay fed.

볏짚의 사료가치 증진에 관한 연구 제1보 발효 볏짚 사료의 소화율 검정 시험

김춘수,배무,이남형 ( Chun Su Kim,Mu Bae,Nam Hyung Lee ) 한국축산학회 1977 한국축산학회지 Vol.19 No.5

This experiment was conducted to study the nutritive value (TDN) of rice straws which were produced by chemical treatment and the fermented methods for cattle and pig. The results obtained were summarized as follows: 1. TDN value of the fermented products of rice straw for cattle was ranging from 50.5 to 58.4%. The value was 10% higher than the one for pig. TDN value of raw straw for cattle was attained as 41.0%. 2. The nutritive value of rice straw with aerobic fermentation after 0.25% Ca(OH)₂-steamed treatment did not improve significantly over the 3% NaOH-steamed treatment. 3. The fermented product of rice straw by Asp-9 resulted in higher TDN value than other strains. 4. It was tested TDN value of rice straws which were produced differently by the fermented methods. The process F-II using Asp-9 resulted in higher TDN value but little significant difference were observed among fermentation methods.

고구마의 사료화에 관한 연구 2 . 양계사육 시험

김춘수,이남형 ( Chun Su Kim,Nam Hyung Lee ) 한국축산학회 1976 한국축산학회지 Vol.18 No.3

Nutritional aspects deeding the sweet potato, being processed by physical means of pressing and drying, were examined for the place of yellow-corn with chicks. Prior to the feeding trials, chemical compositions including vitamin and mineral contents, and amino-acid profiles of respective potatoes samples were analysed. Metabolizability of experimental samples were also included in this study. 1. For the first feeding trial of broiler starter, potatoes (pressed or not pressed) anal whole potato (root to leaf and stem ratio in 2 : 1 or 4 : 1) were substituted with corn meal at 0, 5, 10, 20 and 30% levels on an air dried weight to weight basis. The weight gain, feed intake and feed efficiency of control group were superior over the sweet potatoes groups and it was observed that the effect of weight gain was decreasing with increasing the substitutional levels of the potatoes in all treatments, but upto 10% substitution levels, little significant difference was observed between control and experiment groups. The metabolizable energy value of potatoes (pressed) and whole potato (root to leap and stem ratio in 3 : 1) were estimated as 2,538 ㎉ and 2,406 ㎉ per kilogram respectively. However, the feed cost required per ㎏. weight gain was less for the 20% (potatoes pressed) and the 10% (whole potatoes) groups compared to that of control. 2. In subsequent feeding trial on the broiler starter. The samples of potato (with or without steamed) were substituted with corn meal at the same levels as was in the first feeding trial. For the weight gain as well as feed efficiency, the potato groups of both with or without steamed was inferior to that of control group but differences were not significant among the groups. The metabolizable energy value of steamed potato was estimated as 3,100㎉/㎏., higher than the pressed one, but the estimated production cost was higher than the control group. 3. As for the starting chicks, the whole sweet potato, being hot sir dried, was substituted with corn meal upto 20% on an air dried weight to weight basis. It was observed that overall growing performance was also decreased with increasing the levels of potato but upto 10% level, little statistical difference was also observed among the roups. 4. In the hen-day egg production, egg weight and feed efficiency, the performence of experimental groups in the first trial were favorable over the control group, and this results indicate that the whole potatoes can be in corporated in laying rations up to 14% in replacing corn, and the substitution of corn with potatoes was also proved to be economically feasible. Such favorable results of feeding the potato for the place of corn was also confirmed by subsequent trial on laying hen.

고구마의 사료화에 관한 연구 3 . 양돈 사육시험

김춘수,이남형,한인규,하종규,윤덕진 ( Chun Su Kim,Nam Hyung Lee,In K . Han,Jong Kyu Ha,Duk Jin Yoon ) 한국축산학회 1976 한국축산학회지 Vol.18 No.3

The experiments were designed to evaluate nutritive value of whole sweet potato (root to stem and leaf ratio in 3 : 1), being pressed and sun-dried, for the pig grower. The potato was substituted with corn meal at the levels of 0, 10, 20 and 40% on air dried matter basis in the first trial. For the subsequent trial, the substitution level was extended to 60% basis. In the first feeding trial, overall growing performance including weight gain and feed efficiency, and the results of carcass analysis were not significantly different between the control and the potato groups. Nutrient digestibility of sweet potato was, however, inferior to that of the control group. The digestible energy value of potato sample was estimated as 2,678 ㎉/㎏. Contrarily, for the second feeding trial, the of reds of feeding the potato upon weight gain, feed efficiency and nutrient availability were somewhat decreased with increasing the level of potato but little significant difference was attained between the control and the groups of 40% potato feeding. The feed cost required per ㎏ weight gain for the potato groups of upto 40% feeding was tuned cut to be favorable over the control.

석유자화효모의 사료적 가치에 관한 연구 ( 2 )

김춘수,이남형 ( Chun S . Kim,Nam H . Lee ) 한국축산학회 1975 한국축산학회지 Vol.17 No.3

The feeding experiments were made for a period of 13 weeks to determine the nutritional values of petroleum hydrocarbon yeast (KISTEIN) on the laying performance. The results obtained were summarized as fellows: 1. Petroleum hydrocarbon yeast (KISTEIN) contains mere vitamin B₂ and niacin than soybean oil meal but P, Ca, Mg and K contents of KISTEIN were rather lover than soybean meal. 2. It was observed that hen-day egg production, feed intake, egg weight and feed efficiency were not significantly different among the experimental groups. Metabolizabl energy value of KISTEIN was determined as 3,045 ㎉/㎏ in layer diets and digestibility of crude protein was 82.16%, indicating that KISTEIN is nutritionally very competitive with soybean meal.

부로일러에서 피혁분의 사료적 가치에 관한 연구

김춘수,이남형 ( Chun Su Kim,Nam Hyung Lee ) 한국축산학회 1977 한국축산학회지 Vol.19 No.3

Trials have been conducted to determine the acceptability of hydrolyzed leather meal (HLM) in the broiler diets. The results obtained were summarized as follows; 1. The crude protein and ash content of HLM was found to be respectively 66.65 and 14.45 percent. Also, glycine and methionine content was 17.05 and 0.26 percent. 2. There was not significantly difference among the groups in the weight gain, feed intake and feed efficiency. 3. in vico and in vitro protein digestibility were found to be 82.73 and 70.85 percent. 4. Chromium content of HLM was 1.14 percent and chromium in liver and kidney eras higher as to increase level of HLM in formula feed, but there was no apparent accumulation of chromium in muscle to 4 percent level. This results indicate that hydrolyzed leather meal for the place of oil cakes can be used up to 4 percent level in the broiler ration.

상대습도를 달리한 저장조건하에서 배합사료의 변질방지를 위한 방부제의 사용효과에 관한 연구

이남형(Nam H . Lee),윤칠석(Chil S . Yoon),오태광(Toe K . Oh),이인옥(In O . Lee),유창열(Chang U . Yoo),김춘수(Chun S . Kim) 한국영양사료학회 1987 韓國營養飼料學會誌 Vol.11 No.3

면양에서 볏짚 - 가축분싸일레지의 소화율과 질소균형에 관한 연구

이남형,김춘수 ( Nam Hyung Lee,Chun Su Kim ) 한국축산학회 1983 한국축산학회지 Vol.25 No.3

This experiment was conducted to use broiler litters and pig manure as alternatives of layer`s manure for making straw-manure silage as well as to determine the digestibility and nitrogen balance in sheep fed rice straw-livestock manure silage. Four sheep averaging 30 kg were used in a digestibility and nitrogen balance trial by 4x4 Latin square design. The four rations tested contained; 1) 4% NaOH treated rice straw-wet layer`s manure silage, 2) 4% NaOH treated rice straw-broiler litters silage, 3) 4% NaOH treated rice straw-pig manure silage, 4) 4% NaOH treated rice straw-dried layer`s manure silage. The pH of the silage containing wet layer`s manure, broiler litters, pig manure and dried layer`s manure was 4.83, 5.16, 4.64 and 4.82 at the 40 days of ensiling, respectively. The acetic acid production of straw-manure silage with wet layer`s manure and pig manure was major dominant acid whereas the acetic acid and lactic acid production in the straw-broiler litters silage and straw-dried layer`s manure silage became equally dominant. The total acids of silage with broiler litters and pig manure were 7.41% and 2.49%, respectively. The apparent digestibilities of dry matter, organic matter, neutral detergent fiber (NDF) and acid detergent fiber (ADF) were similar in the lambs receiving the straw-manure silage regardless of type of manure included. The apparent digestibility of crude protein in the silage containing dried layer`s manure was significantly lower than the silages of pig manure, broiler litters and wet layer`s manure (P$lt;0.05). There was little differences in nitrogen balance. The total digestible nutrients (TDN) value of straw-manure silage containing wet layer`s manure, broiler litters, pig manure and dried layer`s manure was determined as 53.36%, 54.50%. 53.57% and 49.86% respectively.

부로일러 초생추에 있어서 강부류사료의 대사에너지 측정에 관한 연구 ( 제4보 )

이남형,김춘수 ( Nam H . Lee,Chun S . Kim ) 한국축산학회 1975 한국축산학회지 Vol.17 No.3

This experiment was conducted to study the ME values of rice bran, wheat bran, barley bran, sweet potato meal (include leaf and stem), sweet potato meal (expressed processing) by chromic oxide indicator technique in broiler chickens. The substitution level of test ingredients was 30% on the basis of air dry matter. The N-corrected ME values of rice bran, wheat bran and barley bran were 1,600, 1,489 and 2,315 ㎉/㎏ respectively. The sweet potato meal including leaf and stem and mechanically expressed sweet potato meal gave the ME values of 2,406 and 2,528 ㎉/㎏ respectively.

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.