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면양에서 조대두 ( 粗大豆 ) 레시친 첨가시 소화율 , 제1위 및 혈액지질의 지방산조성에 미치는 영향
윤칠석,정근기,배동호 ( Chil Surk Yoon,Keun Ki Jung,Dong Ho Bae ) 한국축산학회 1986 한국축산학회지 Vol.28 No.7
This experiment was carried out to study effects of crude soybean lecithin addition on digestibility of ration components, ruminal characteristics, fermentation of long-chain fatty acids in the rumen, and composition of fatty acids in blood lipid. The results obtained are summarized as follows: 1. The digestibility of OM, protein, ether extract, fiber, ADF, NDF and energy were improved with 4% lecithin, and especially ether extract was significantly (P$lt;.01) more digested than the control. 2. The digestibilities of major fatty acids were not greatly affected by the inclusion of lecithin. However, the unsatutated fatty acids were more digestible than the saturated fatty acids regardless of the treatments. 3. The ruminal pH at the 8% level was slightly lower than at the 0 or 4% levels. The ruminal viscosity was greatly influenced by the addition of lecithin. The ruminal viscosity was much lower at the 4 and 8% levels (6.0-9.0 cp) compared to the control (13.0-16.0 cp). 4. The total VFA concentration tended to be slightly declined with increasing lecithin. In the molar proportions of individual VFAs, the addition of lecithin resulted in a high increase in proportion of propionic acid and n-valeric acid. The acetic acid production declined greatly as the crude soybean lecithin increased. 5. The ruminal ammonia concentration was increased with lecithin supplementation. 6. The stearic acid in the rumen fluid was quantitatively the most important fatty acid, followed by palmitic and oleic acids although the difference in the proportions among treatments existed. The fatty acids in the faeces ware predominated stearic acid followed by palmitic acid, and unsaturated fatty acids were at low percentage. 7. The concentration of free fatty acid in blood lipid increased with lecithin addition. In the fatty acid composition of blood, the stearic acid was quantitatively the most proportion, followed by oleic acid and palmitic acid. 8. The above results indicate that the inclusion of crude lecithin can be well utilized by ruminants in view of the. profitable effects in the digestibility and the production of individual VFAs.
윤칠석 영남대학교 지역발전연구소 2000 영남지역발전연구 Vol.26 No.-
The purpose of this study is to find the scheme of GIS application to regional environmental management planning. For the purpose, we have discussed about the theoretical and practical efforts of GIS application to regional environmental management planning. We also have discussed the roles of GIS as planning supporting system. From this study following result has been found: For the establishment of regional environmental management planning system, first, we need to build up the organization carrying out the planning. Second, we have to find out the regional environment problems specified to the region. Third, we have to establish clear-cut goal setting of regional environmental management planning. Fourth, we have to divide GIS concretely into spatial data base and application system in the implementation step. Finally, for the evaluation and feedback, we need to device the evaluation model of regional environmental management.
볏짚 - 계분 발효사료의 급여가 반추가축의 비육효과 , 영양소의 이용율 , 제1위내 성상 및 Protozoa 분포에 미치는 영향
윤칠석,이남형,김춘수 ( Chil Surk Yoon,Nam Hyung Lee,Chun Su Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.10
Fifteen Korean native cattle, averaging 128㎏ of initial body weight, were utilized to evaluate the effects of SMS on growing performance and digestibility of nufrients, protozoal population in the rumen and some mineral balance in sheep. The concentrates were given the amount of 1% of body weight and each roughage (SMS, rice straw, rice straw-pellet) of 2%o of body weight. NaCl and water were available at all times. After 48weeks of experimental peroid, the final body weight of SMS group was significantly higher compared with the other roughage groups (P $lt; .05). Daily weight gain of SMS, rice straw and pellet group was 0.90, 0.69, and 0.81㎏, respectively. In sheep experiment, the nutrient utilization for SMS tended to increase mostly, while the crude protein digestibility for the pellet group was significantly decreased. The rumen pH value for SMS group tended to be slightly lower compared to the other groups, and the concentration of individual VFAs was higher at the SMS group. Especially, the butyric acid for SMS was doubled in value than that of other roughage. Total protozoal count in the rumen fluid was higher at SMS group, followed by straw and pellet group (P $lt; .01). And Entodiniomorphs was predominated species, especially Entodinium. SMS But Holotrichs in me or straw was more frequently observed. Absorption% of intake of Mg, Na, K for the SMS were 48.18, 64.37, and 61.83, and these of the other groups were lower. As compared to the high intake of Na for pellet group, the retained amount was fairly low as were the other minerals. Nitrogen retention for pellet group was lower than that of the other groups (P $lt; .01).
대두박과 요소를 첨가한 옥수수 및 보리 급여시 면양의 소화관내 아미노산 이용에 관한 연구
윤칠석,이남형,정근기 ( Chil Surk Yoon,Nam Hyung Lee,Keun Ki Jung ) 한국축산학회 1986 한국축산학회지 Vol.28 No.9
This experiment was designed to study the effect of carbohydrate sources with some different processes on the utilization of amino acids in the intestine as well as amino acid flow at the abomasum. The carbohydrate sources were cracked corn, whole barley, rolled barley and steamrolled barley, and the 20% of total nitrogen was replaced by the urea. The results obtained are as follows; 1) For the quantities of TAA-N, EAA-N and NEAA-N passing the abomasum, it resulted not significantly in increased for the steamrolled barley diet. The amounts of TAA-N and NEAAN digested postruminally were significantly lower at the feeding of cracked corn diet (P$lt;.05). The mean values for the proportionate disappearance of apparently digested TAA-N, EAAN, and NEAA-N within the intestine for four diets were 79.74±2.53, 79.23±2.40, and 80.62±2.91, respectively. 2) There were no significant differences (P$lt;0.5) for individual amino acid composition (g/100g DM digesta) in abomasum. There were significant differences for the quantities of amino acid passing abomasum on the GLU, PRO, VAL, LEU, PHE, LYS, and ARG at the feeding of steamrolled barley (P$lt;.05). The amounts of each amino acid in abomasal digesta, expressed as a proportion of the amounts ingested for the diets, showed that there were net gains of EAA with exception of cystine and NEAA. 3) Within the intestine of sheep, there was significant loss of amino acids, such as SER, GLU, GLY, ISL, LEU, PHE, LYS (P$lt;.05), and PRO, VAL, and ARG (P$lt;.01). The mean values of the proportionate losses of methionine and phenylalanine were 0.748±0.015, and 0.805±0.032.
윤칠석 영남대학교 지역발전연구소 1999 새마을지역개발연구 Vol.24 No.-
The purpose of this study is to examine the actual condition and the mechanism of environmental disruption in Central Asia with the connection to the regional development policies in the same area. From this study following result has been found: In the actual condition analysis of environmental disruption of Central Asia, expansion of the irrigation agriculture in the Aral sea basin forms bases of Central Asia environmental problems such as a water environment(volume of water decreases and water quality contamination), soil pollution and air pollution. Secondly, the environmental disruption in Central Asia is a typical example of in socialism nations. So it needs to understand the environmental problems in Central Asia in connections with politics, a race, a philosophy and technique problems in socialism nations.