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KMID : 1041219740160010057
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Journal of Sericultural and Entomological Science
1974 Volume.16 No. 1 p.57 ~ p.65
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Effects of Carbohydrate and Protein Components of Artificial Diet on Amylase Activity of Digestive Juice in the Silkworm, Bomyx mor L. I. Effect of Protein Components of a Diet on the Increasing of Larval Body weight, Diet Efficiency and Amylase Activity of Digestive Juice during the 5th instar
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Moon Jae-Yu
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Abstract
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This study has been carried out to investigate the effect of protein components of a diet on the increasing of larval body weight and diet efficiency, as well as the amylase activity of larval digestive juices during the 5th instar. Defending on the amounts of soybean meal as a protein source, the six different kind of artificial diets containing mulberry leaf powder fed to the larvae. The results obtained may be summarized as follows： 1. As the protein components of the diet were increased, the amount of increased larval body weight was also increased. 2. As the protein components of the diet were increased, both the cocoon weight and cocoon layer weight were also increased. 3. As the protein components of the diet were increased, both the amount of diet digested and coefficient of digestibility were also increased. 4. As the protein components of the diet were increased, the diet efficiency of larvae were also increased. 5. But the experimenters could not observe any correlation between the increase of protein components of a diet and the amylase activity of the digestive juices.
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