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강한석 ( H. S. Kang ),손장호 ( J. H. Son ),이길왕 ( K. W. Lee ),김선구 ( S. K. Kim ),조병욱 ( B. W. Cho ),신택순 ( T. S. Shin ),전해열 ( H. Y. Jeon ) 한국유기농업학회 2003 韓國有機農業學會誌 Vol.11 No.1
This study was conducted to established method of culture for Paecilomyces japonica using an egg. Mycelia grew favorably at the temperature of 22~26℃ on eggs. 5.1g of dry matter basis(average 7.2㎝ of longer and 199.6 of numbers) of artificial fruiting bodies were harvested at 60 days after inoculation from one of egg. Commercial fruiting bodies of Paecilomyces japonica from silkworms was used for comparative nutriental contents. Cordycepin contents of fruit bodies of Paecilomyces japonica cultivated on eggs and silkworms were not significantly different. Crude fat contents of fruiting bodies of Paeilomyces japonica cultivated from eggs was significantly higher than from silkworms(P<0.05). Mn and Cu contents of fruiting bodies of Paecilomyces japonica cultivated from silkworms were significantly higher than from eggs(P<0.05),but Na, Mg, Fe and Zn contents were significantly higher from eggs(P<0.05). Glycine, Arginine and Proline contents in the fruiting bodies of Paecibmyces japonica cultivated from silkworms were tend to higher than from eggs, but Serine, cystein, methionine, isoleucine and phenylalanin were tend to higher from eggs. These results were made possible that possible mass production of artificial fruiting bodies of Paecilomyces Japonica cultivated on eggs.
육계사료와 식용유 정제 폐백토(Spent Bleaching Clay) 급여가 육계의 생산성에 미치는 영향
전해열,손장호,이길왕,김선구,강한석,신택순,조병욱,Jeon H. Y.,Son J. H.,Lee K. W.,Kim S. K.,Kang H. S.,Shin T. S.,Cho B. W. 한국가금학회 2005 韓國家禽學會誌 Vol.32 No.4
본 연구는 Spent Bleaching Clay(SBC)를 육계사료의 에너지 공급원으로 활용 가능성을 구명하기 위하여 실시하였다. 부화 직후의 120수의 병아리(한협 3호)를4처리 3반복, 반복당 10수(암수 각각 5수씩)를 Control(T1) 사료에 SBC를 $2.0\%(T2),\;4.0\%(T3)$ 및 $6.0\%(T4)$ 첨가한 4처리로 배치하였다. 시험사료 급여전 1주일은 시판사료를 급여하였다. 4주간의 시험 기간동안 증체중 및 사료 섭취량은 T3 및 T4 처리구에서 증가하는 경향이 인정되었다. 사료효율은 T3구에서 개선되는 경향이 인정되었다. 가슴살 및 다리살에서 치방산 조성을 사료의 처리에 따른 효과는 인정되지 않았다. 육계 초기 및 후기 사료 급여시 모두, 사료중의 건물, 조단백질 및 조지방 이용율은 T4 처리구가 다른 처리구에 비해서 유의하게 감소하였으며(p<0.05), 대사에너지가도 T4 처리구가 다른 3구에 비해서 유의하게 저하하였다(p<0.05). 사료중의 조회분의 이용율은 사료의 처리에 따른 차이는 인정되지 않았다. 결론적으로 본 시험의 결과 육계사료에 $2\~4\%$의 SBC첨가는 육계의 성장 및 사료효율 개선의 가능성이 있음이 사료된다. This study was conducted to evaluate the feasibility of spent bleaching clay(SBC) as an energy resource for meat type chicks. A total of one hundred twenty 1-d old broiler chicks(Han-hyop, No. 3) were divided into four groups and each group was assigned to one of the following diets: 0(T1), 2.0(T2), 4.0(T3) and $6.0\%$ SBC(T4). Each treatment had 3 replications of 10 birds. Before feeding experimental diets, they were fed a commercial diet for a week Body weight gain and feed intake tended to increase in T3 and T4, respectively. Feed efficiency(feed intake/ gain) tended to decrease in T3 compared to other groups. Fatty acid composition of breast and thigh meat was not significantly affected by feeding SBC. Utilization of dry matter, energy, crude protein and crude fat was lower in T4 than in the other groups during both starter and finisher periods(p<0.05). Crude ash utilization was not significantly affected by feeding dietary SBC. These results indicate that broiler diets may be supplemented with 2 to $4\%$ SBC without adverse effect on growth.
볏짚의 사료가치 증진을 위한 요소수용액의 처리기간과 저장온도에 관한 연구
고영두,김재황,유성오,류영우,강한석,송영민,김두환 ( Y . D . Ko,J . H . Kim,S . O . Yoo,Y . U . Ryu,H . S . Kang,Y . M . Song,D . H . Kim ) 한국축산학회 1997 한국축산학회지 Vol.39 No.3
This experiment was carried out to enhance the feed value of rice straw and utilization of urea as ruminant feedstuffs. The test animals were alloted depending upon three different treatment periods(7, 14 and 21 days), three different temperature(10, 20 and 30~), and two different urea concentration(5% or 10%) with 30% urea solution in the rice straw. The treated rice straw was then sun-dried, and the chemical composition of the treated rice straw was analyzed. Also, 0.2% pepsin-HCl solution and 2.5% cellulase were used to determine the in vitro dry matter digestibility. Eight Corriedale sheep(about 40 ㎏, ♂) were used to determine the NH,-N and palatability. Crude protein content of 5% level treatment with 30% urea solution was significantly(P$lt;0.05) increased in the treatment periods of 14 day and 21 day. NDF content did not significantly(P$gt;0.05) differ among treatment periods without regard to 5% or 10% level treatments with 30% urea solution, but ADF content of 21 day treatment period with 5% level and 7 day treatment period with 10% level was significantly(P$lt;0.05) lower than those of other treatment periods. Total N content did not significantly(P$gt;0.05) differ among Treatment periods, but NH₃-N content of the treatment with 10% level tended to be decreased depend on increasing with treatment periods. In vitro DDM of 5% or 10% treatment levels with 30% urea solution tended to increase in the treatment period of 7 day. Palatability of 5% or 10% levels with 30% urea solution did not differ(P$gt;0.05) among treatment periods. Crude protein content of 30℃ storage temperature with 5% or 10% levels was significantly(P$lt;0.05) higher than that of the other storage temperature, NDF and ADF contents did not significantly(P$gt;0.05) differ among storage temperature with 5% or 10% levels. Total N content did not significantly(P$gt;0.05) differ among storage temperature. But NH₃-N content of 10℃ storage temperature with 5% level was significantly (P$lt;0.05) higher than that of the other storage temperature. In vitro DDM of 5% treatment levels with 30% urea solution was significantly(P$lt;0.05) increased in the treatment with 30℃ storage temperature, but palatability of 5 or 10% treatment levels with 30% urea solution did not significantly(P$gt;0.05) differ among storage temperature.
계분과 당밀을 첨가한 볏짚 Silage 의 품질과 사료적 가치 2 . Silage 의 소화율과 기호성
고영두(Y . D . Ko),송영민(Y . M . Song),강한석(H . S . Kang),김두환(D . H . Kim) 한국축산학회 1991 한국축산학회지 Vol.33 No.3
This study was carried out to increase the feeding value of rice straw, . ensiling with broiler manure and molasses. The silage formulated with 100% rice straw, 20, 30, and 40% broiler manure and 5% molasses was fermented in plastic silo for 60 days. To evaluate feed values, palatability and digestibility of rice straw silage were determined in a feeding trial with 6 male sheep(Corridal). The results obtained are summarized as follows ; 1. Dry matter, crude protein and crude ash contents were increased when the level of broiler manure was increased in the silage, but crude fibre and NFE were decreased. 2. The crude protein digestibility of the silage with broiler manure and molasses was increasd. and DCP was the highest in the silage with 40% broiler manure. 3. Daily intake of nitrogen for sheep was the highest in the silage containing 30% broiler manure. and daily dry matter intake per metabolic body weight was the highest in the 20% broiler manure silage(p$lt; .05). 4. Palatability and dry matter intake were the best in broiler manure 20%.
사료 에너지 수준이 Broiler 의 복강지방축적 , 간의 지방산 조성 및 혈액성분에 미치는 영향
강한석,고영두,김재황 한국축산학회 1994 한국축산학회지 Vol.36 No.3
This study was conducted to investigate the effects of various dietary energy regimes during the starter and finisher periods on the abdominal fat content, blood composition and free fatty acid contents in the livers of broiler chickens. Two days-old broiler chickens were randomly alloted to three energy treatments (L, 3,000; M, 3,200; and H, 3,400 ㎉ MF/㎏) during the starter period (0 - 3 wk of age). Nor each treatment, three energy levels(L, 3,000; M, 3,200; and H, 3,400 ㎉ ME/㎏) were assigned fbr the finisher period to give 9 treatments (LL, LM, LH, ML, MM, MH, HL, HM, and HH) in all. The protein Levels for the starter and finisher periods were 23 and 20%, respectively. The results obtained are summarized as follows : 1. The abdominal fat content was significantly higher(P$lt;.05) in the HH(28.7 g/㎏) and the MH(2s.8 g/㎏) groups than in the others. The liver weight was significantly higher (P$lt;.05) in the LL(2.3%) and the ML(2.4%) groups than in the others. 2. The palmitic acid content in the liver tissue was relatively higher in the HH(37.4%) and the HM(34.5%) groups, while oleic acid was relatively lower in the HH(24.8%) and the HM(23.6%) groups than in the others. Linoleic acid content tended to be relatively high in the LL(14.3%), h9L(14.3%) and HL(14.4%) groups. 3. The concentration of hemoglobin was significantly higher(P$lt;.05) in the LL(9.6 g/dL) groups, and lower in the LH (7.9 g/dL) and the HM(8.3 g/dL) groups than in the others, and the hematorit value showed a similar trend to the hemoglobin concentration. 4. The serum cholesterol contents were high in the treatments of low dietary energy regimes(160∼170 ㎎/dL), and low in the treatments of high dietary energy level during the first 3 weeks (140∼151 ㎎/dL) of the experiment. 5. The serum triglyceride concentration was significantly higher(P$lt;.05) in the high dietary energy treatments in the last 2 weeks (LH and MH). There were no significant differences in the serum phospholipid contents as affected by dietary energy level.