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RISS 인기검색어
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다비상엽(多肥桑葉)의 사료가치(飼料價値)에 관(關)한 연구(硏究)
문재유 ( J. Y. Moon ),김윤식 ( Y. S. Kim ),김낙정 ( N. J. Kim ),이윤환 ( Y. W. Lee ) 한국잠사학회 1970 한국잠사곤충학회지 Vol.11 No.-
최근 상문의 생산성을 향상시키기 위하여 우리나라 양잠농가의 실정을 감안할 정도의 다비재배를 할 경우 다비상엽에 대한 누에의 사료가치를 구명하고자 약 1년간 (1969.3월~1969.12월)를 연구기간으로 하여 사육시험에 의하여 얻어진 결과를 실험통계적인 면에서, 다비상엽의 성분분석에 의하여 얻어진 결과를 누에의 영양요구 면에서 고찰하였다. 고찰결과 N 44.4kg, P2O5 18.4kg, K2O 34.4kg (년간 10a 당)까지 시여한 다비상엽이라도 누에의 충질과 견질에 영향이 없는 동시에 누에의 사료가치가 인정되었다. In the light of the present situation of fertilizing presently apllied in farmer`s mulberry fields, it was considered to be value enough to carry out the experiment on whether its degree of fertilizing have no affect on silkworm growth and their cocoon harvest as well, so that the results thus obtained from the experiment are as following; The amount of fertilizing, N 44.4kg, P2O5 18.4kg, and K2O 34.4kg, respectively were minimum for the. East affect on the silkworm growth and cocoon yields.
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5령일수별급상량(齡日數別給桑量)의 증감(增減)이 가잠실용형질(家蠶實用形質)에 미치는 영향(影響)
박광의 ( K. E. Park ),문재유 ( J. Y. Moon ),김주읍 ( C. U. Kim ) 한국잠사학회 1969 한국잠사곤충학회지 Vol.9 No.-
5령일수별급상량의 증감이 가잠 실용형질에 미치는 영향은 다음과 같다. 1. 5령 전기간 표준급상량을 급여한 것보다 5령일수별로 30%증가 급여한 것은 실용형질 중 1과수에만 영향하고 화용비율, 전견중, 견증량, 견증비율, 상견비율에는 영향하지 않는다. 즉, 급상량증가는 강건성과 사량증가에는 효과가 없다. 2. 5령 전기간 표준급상량을 급여한 것보다 5령일수별로 30% 감량 급여하는 것은 실용형질 중 가장 중요한 전견기, 견증중에 크게 영향하며 화용비율, 견증비율, 상견비율 1계수에는 영향하지 않는다. 즉, 5령 전기간 표준급상량을 급여한 것에 비하여 5령 전기간 감량급여 한 것은 전상량이 12%, 상증중이 17% 가벼운 것으로 가장 불량하며 5령일수별로 감량 급여한 것 중에 특히 5령 7일째 감량한 것은 전상중, 상증중이 각각 5% 가벼운 것으로 불량하였다. This study was carried ont to investigate the effect of feeding amount on the metric characters of silkworm at each day of 5th instar. The results obtained from the study are summarized as follows: 1. The increased amount of feeding did not affect on the metric characters except the character, number of cocoon per litre, by each day of 5th instar. 2. The decreased amount of feeding did affect the weight of cocoon, weight of cocoon layer and did not affect the pupation, best cocoon rate, cocoon layer rate and number of cocoon per litre by each day of 5th instar. Namely, the weight of cocoon or weight of cocoon layer was decreased by 12 to 17 per cent in decreasing amount of feeding through 5th instar. Weight of cocoon or cocoon layer decreased by 5 per cent in the decreasing amount of feeding at just 7th day of 5th instar.
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人工飼料育에 있어서 卵黃蛋白質(Vitellogenin)의 同定과 그 分子量 推定
文在裕,尹馨珠,李相夢 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.1
The existence of vitellogenin and subunit molecular weights in the silkworm were investigated by SDS- polyacrylamide gel electrophoresis. 1. The female specific protein(SP1) was detected in the haemolymph of the 5th instar female larvae as specific female protein. The above specific female protein was increased more rapidly from 6th day of the 5th instar till 2nd day of the spinning larvae. 2. The vitellogenin (VG) was also detected in the haemolymph of the female pupae and eggs as the specific female protein. The haemolymph vitellogenin was occured just after transformation of larvae into pupa. 3. Egg vitellogenin molecules were consisted of two large and two small subunits. The estimated molecular weights were 186,000 and 41,000, respectively. No difference in the molecular weights of the egg vitellogenin were found in the silkworm larvae reared on artificial diet and mulberry leaves. 4. In comparision with the control, the contents of female specific protein(SP1) in 4,6 and 8 days old 5th instar larvae were increased when treated with juvenile hormone, analogue(methoprene) during 5th instar, and decreased on 2nd day old spinning larvae in both the rearings with artificial diet and mulberry leaves. The content of female specific protein(SP1) was found minimum in 4 days old 5th instar larvae and increased gradually on 6th, 8th days and was maximum on 2nd day of spinning, in both rearings with artificial diet and mulberry leaves.
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人工飼料의 營養物質 添加가 누에의 Vitellogenin 및 Vitellin 含量에 미치는 影響
文在裕,孫基旭 서울大學校 農科大學 1988 서울대농학연구지 Vol.13 No.1
The effects of some dietry nutrients as β-sitosterol, methionine and α-tocopheral in the artificial diet were investigated, on the quantities of vitellogenin and vitellin in the silkworm, Bomyx mori. The results obtained are as follows: 1. the quantities of vitellogenin in the pupal haemolymph and vitellin in the eggs were found increased, when 5㎎ or 10㎎ of β-sitosterol was added to one gram of dry artificial diet. 2. The remarkable increase in the quantities of vitellogenin and vitellin were noticed, when 6.5㎎ methionine was added to one gram of dry artificial diet. 3. The quantities of vietllogenin and vitellin were decreased when 4㎍ or 2㎍ of α-toeopherol was added to one gram of dry artificial diet.
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