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KMID : 1041219690090010035
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Journal of Sericultural and Entomological Science
1969 Volume.9 No. 1 p.35 ~ p.38
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The effect of feeding amount on the metric Characters of silkworm at each day of 5 th instar
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Park Kwang-E
Moon Jae-Yu
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Abstract
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This study was carried ont to investigate the effect of feeding amount on the metric characters of silkworm at each day of 5 th 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 5 th 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 5 th 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 5 th instar. Weight of cocoon or cocoon layer decreased by 5 per cent in the decreasing amount of feeding at just 7 th day of 5 th instar.
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