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수단그라스 , 수단그라스잡종 및 수수 - 수단그라스 잡종의 사초생산성 2 . 사일리지용 잡종의 비교
김동암,서성,이효원,임상훈,조무환,이무영 ( D . A . Kim,S . Seo,H . W . Lee,S . H . Lim,M . H . Jo,M . Y . Lee ) 한국축산학회 1982 한국축산학회지 Vol.24 No.2
In order to select higher yielding forage suited for silage, the yield performance and associated characteristics of 23 introduced sorghum-sudangrass hybrids (Sorghum bicolor (L.) Moench) have been evaluated at the Experimental Livestock Farm, COA, SNU, Suweon in 1979 and 1981. The results obtained are summarized as follows: 1. NK 367, Pioneer 931 and FS 24 gave significant highest forage yields than the control variety, Suweon 19 hybrid corn (P $lt; 0.05). There were no significant differences in forage yield between FS 4, FS 25A, T-E TDN, X 4318, Silo Milo and Suweon 19 hybrid corn, but these sorghum-sudangrass hybrids were the better forage producers. 2. Average grain percentages to the total forage yield of various hybrids tested ranged from 9.8% for FS 24 to 44.8% for FS 351 except NK 367. The grain percentages of FS 351 and Silo Milo were the highest and similar to that of Suweon 19 hybrid corn where 43.5% grain was obtained. 3. FS 251, NK 326 and FS lA headed and flowered early than other hybrids, while Pioneer 931, T-E TDN, X 4318 and Pioneer 944 showed later. NK 367 was the latest hybrid in maturity. 4. NK 367 and Pioneer 931 were found to be as tall type hybrids, while FS 251 and FS 351 appeared short types. Although no diseases and lodging were found in most hybrids, T-E Goldmaker was susceptible to leaf disease and SS IV gave severe lodging during the growing season. 5. The results indicated that Silo Milo, X 4318, FS 25A and T-E Silomaker have high silage yield potential with moderately high grain, and NK 367, Pioneer 931, FS 24, T-E TDN and FS 4 also have high yield potential with relatively low grain.
제경법 (蹄耕法) 에 의한 산지초지 (山地草地) 개량에 관한 연구 2 . 초지개량전 방목강도가 목초의 정착과 잔존에 미치는 영향
신재순(J . S . Shin),이효원(H . W . Lee),김동암(D . A . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.6
This experiment was carried out to know the effects of grazing intensity as a seed bed preparedness method on establishment, survival, botanical composition and DM yield when hoof and tooth cultivation was applied. This trial was conducted from August, 1982 to the end of growing season in 1983 at the compound of Alpine Experiment Station. The results obtained are as follows. 1. When Korean native cow grazed on hilly grassland(Miscanthus Sinensis dominated) at the rate of 60 Heads, 120 Heads and 180 Heads/ha, the establishment ratios of grasses were 13.3%, 10.7% and 24.2%, respectively. There was significant difference(p$lt;0.05) between 180 Head plot and 60 Head plot. but those of legume were to be traced regardless intensity. Survival ratio of grasses in the following year was increased as graz ing intensity was high. 2. Grasses ratio of pasture species at the final harvest of second year was highest in plot which had highest survival ratio and there was no significant differences among treatments in term of DM production.
외국산 도입호밀의 청예사료로서의 생산성 비교연구 3 . 추파호밀 품종의 답리작 ( 畓裏作 ) 조건에서의 내한성과 사초수량
김동암,서성,이효원,조무환,임상훈 ( D . A . Kim,S . Seo,H . W . Lee,M . H . Jo,S . H . Lim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.3
This experiment was conducted on the paddy Held of SNU in Suweon, to compare growth characteristics` winter hardiness and forage yield of selected southern and northern types of winter rye (Secale cereale L.), in comparison with Korean native rye during the 1977-81 season. The southern winter ryes were characterized by an upright habit of growth and the Korean native rye exhibited a semi-uplight growth habit, but the northern winter rye showed a prostrate form of growth. Vitagraze, Athens Abruzzi, Wrens Abruzzi and Wonder grazer were earlier in maturity and grew very vigorously and rapidly in the early spring, but the Korean native and northern rye varieties were late in maturity. Vitagraze, Weser and Athens Abruzzi were the best for winter hardiness of all rye varieties, but no differences in winter hardiness were noted between different types of rye with the exception of Rymin in 1978 and Explorer in 1981 which showed the lowest winter survival. Athens Abruzzi in 1978, Athens Abruzzi, Vitagraze and Elbon in 1979 and Wonder grazcr, Vitagraze, Wrens Abruzzi, Athens Abruzzi and Acco WR 811 in 1981, produced significantly more dry matter yield than the northern and Korean native ryes. The southern winter ryes generally produced more forage than the northern and Korean native varieties. Athens Abruzzi, Wrens Abruzzi and Vitagraze were the highest yielding ryes of all rye varieties for the entire seaons.
식이중 일가불포화지방산이 흰쥐의 혈액 지질대사에 미치는 영향 2 . 혈액지방산 조성에 미치는 일가불포화지방산과 포화지방산의 반응표면분석
박병성(B . S . Park),이남형(N . H . Lee),지규만(K . M . Chee),이효원(H . W . Lee),이영철(Y . C . Rhee) 한국축산학회 1993 한국축산학회지 Vol.35 No.3
The response surface regression analysis was carried out to determine the dietary optimal response levels of monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA), as a way to minimize the plasma SFA contents and to maximize the plasma MUFA contcnta or the ratios of MUFA to SFA in the rats. Contour plots and three dimentional plots were helpful to predict optimal response conditions, on plasma levels of MUFA and SFA or ratios of MUFA to SFA, which were influenced by dietary MLJFA and SFA levels. From results or response surface regression analysis, reasonable optimal response conditions to minimize plasma levels of SFA and to maximize plasma MUFA contents or ratios of MUFA to SFA could be obtained when MUFA consisted of 40% and SFA 35%, or 45%. of total dietary fatty acids.
간척지 초지조성에 관한 연구 1 . 목초의 내염성 비교
임경빈,김동암,서성,송희복,이효원,임웅규,황종서 ( K . B . Im,D . A . Kim,S . Seo,H . B . Song,H . W . Lee,U . K . Lim,J . S . Hoang ) 한국축산학회 1981 한국축산학회지 Vol.23 No.1
Nine grass and forage legumes were sown on the reclaimed soil areas with three levels of salinity to determine the effects of saline conditions on the establishment, growth and yield of pasture plants. Monthly salt concentration of cultivated. soil layers of the experimental plots was also studied in the 1979-80 season. 1. The seasonal pattern of salt concentration of cultivated soil layers was closely related to the distribution of precipitation throughout the year. Although the salt concentration began to increase in spring and dropped after rainy season, it was again increased in autumn due to continuous favourable weather. 2. Cover degrees of pasture plants were much decreased according to the increasing levels of salt concentration, but those of tall fescue, tall wheatgrass, alkaligrass and alfalfa were usually more than 48% in the medium saline plot. 3. Tall fescue and alfalfa gave an appreciable dry matter yield, such as more than 600㎏/l0a in the low saline plot, however, the other pasture plants including orchardgrass and ladino clover showed an unfavourable yield. 4. Even though dry matter yields of all pasture plants in the medium and high saline plots were remarkably low compared with those of the low saline plot, tall fescue, tall wheatgrass and alfalfa appeared to be better adapted to salinity than the other pasture plants. 5. On the basis of the results obtained, it is suggested that the relative salt tolerance of tall fescue, tall wheatgrass and alfalfa should be considered in formulating seed mixtures for pasture establishment on the reclaimed salty areas in Korea.