Studies on the Carbohydrate-resources among the Composition of Artificial Diet for for the Silkworm, Bombyx mori L.

누에의 人工飼料 組成分中의 炭水化物源에 關한 硏究

In order to investigate a suitable carbohydrate-resources and the activities of starch decomposing enzymes in artifical diet of silkworm, the experiment was undertaken by adding eight kinds of starch in the diet of silkworm. Major characters and zymograms of amylase in body organs were studied by electrophoresis. The results obtained are as follows: 1. Starches of rice, barey and millet were comparatively good for maintaining practical characters of silkworm. 2. It is assumed that no treatments are need to increas purity of starch resources for artificial diet of silkworm. It was found that starch amounts adding to artificial diet are moeerate ranging 12 to 18 percent as dry weight. 3. Regardless of kinds of starch and varieties of silkwormr sametype of electrophoresis zymogram for amylase was resulted as three bands in hemolymph, four bands in intestine and two bands in intestine and two bands in silkgland. There was no band in the digestive juice. In case of 18 percent addition of starch and check plots, no amylose change was investigated in the hemolymph.

누에 人工飼科資源으로 適合한 炭水化物源과 澱粉分解酸素의 活性을 調査하기 위하여 8種의 澱粉을 各各 누에 人工飼科에 添加하여 調劑한 飼科로 누에를 飼育하면서 主要形質과 蠶體內 組織, 器官의 amylase電氣泳動像을 調査한 結果를 다음과 같이 要約한다. 1. 澱粉種類에 따른 누에의 實用形質은 쌀, 보리 및 조澱粉이 比較的 良好한 것으로 나타났다. 2. 누에의 人工飼科用 澱粉源은 純度를 높이기 위한 處理를 加하지 않아도 無妨할 것으로 생각되며 澱粉의 添加量은 乾物重으로 12~18%範圍가 適當한 것 같다. 3. amylase의 電氣泳動像은 蠶品種이나 澱粉의 種類에 關係없이 體液에는 3個活性帶, 中腸에는 4個活性帶 絹絲腺에는 2個活性帶가 各各 同一型으로 나타났고 消化液에는 活性帶가 認定되지 않았다. 그리고 澱粉添加量 18% 및 無添加區에서는 體液의 amylase活性帶에 變化가 誘發되었다.