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KMID : 1041220120500010005
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Journal of Sericultural and Entomological Science
2012 Volume.50 No. 1 p.5 ~ p.9
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Breeding of SooOkJam an Artificial Diet Adaptable Silkworm Variety, for Spring Rearing Season
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Kang Pil-Don
Kim Kee-Young
Sung Gyoo-Byung
Kim Mi-Ja
Ji Sang-Duk
Kweon Hae-Yong
Park Kwang-Young
Shon Bong-Hee
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Abstract
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A new silkworm variety SooOkJam for spring rearing season is F1 hybrid between Jam157, a japanese race bred from introduction breeding and Jam158, a chinese race from introduction breeding. In the local adaptability test performed at 8 local areas in spring of 2011, the hatchability rate of SooOkJam was recorded 2% higher than the authorized silkworm variety, DaePoongJam. The larval period was recorded 12 hour shorter than DaePoongJam. The pupation percentage was recorded 0.8% higher than DaePoongJam. Single cocoon weight (2.40 g), Cocoon yield (22.6 kg) and best cocoon rate (95.5%) was similar to DaePoongJam. The concentration of DNJ was measured 4.12 mg in SooOkJam, lower than DaePoongJam (4.45 mg). Test of the artificial diet of SooOkJam showed excellent adaptability of the artificial diet for larval period from 1st to 3rd, similar to KumOkJam. In the Paecilomyces tenuipes production ability test, the pupal weight of SooOkJam was 1.61 g/individual, similar to DaePoongJam (1.65 g/individual).
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KEYWORD
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Silkworm, Breeding, Artificial Diet, Cocoon
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