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Effect of New Improved Technology of Silkworm Bombyx mori L. Rearing on the Egg Production Capacity
Greiss, H.,Tzenov, P.,Grekov, D. Korean Society of Sericultural Science 2001 International Journal of Industrial Entomology Vol.3 No.2
Experiments were held in Egypt to test a new Package of practices for commercial cocoon production, including adding secondary macro and micronutrients to the mulberry garden, disease free rearing regime, low temperature rearing in young instars and natural mounting fur silkworms. This package for seed silkworm rearing lead to increase in fecundity by 67-121eggs (15.12-26.22%) and yield of standard boxes per 1 parent egg boxes by 57-58 egg boxes(48.33-51.66%) respectively in comparison th the traditional cocoon production technology.
Effect of New Improved Technology of Silkworm Bombyx mori L. Rearing on the Egg Production Capacity
( H. Greiss ),( P. Tzenov ),( D. Grekov ) 한국잠사학회 2001 International Journal of Industrial Entomology Vol.3 No.2
Experiments were held in Egypt to test a new Package of practices for commercial cocoon production, including adding secondary macro and micronutrients to the mulberry garden, disease free rearing regime, low temperature rearing in young instars and natural mounting fur silkworms. This package for seed silkworm rearing lead to increase in fecundity by 67-121eggs (15.12-26.22%) and yield of standard boxes per 1 parent egg boxes by 57-78 egg boxes(48.33-51.66%) respectively in comparison to the traditional cocoon production technology.
Vasileva, Jolanda Bogdanova,Staykova, Teodora Atanasova,Tzenov, Panomir Ivanov Korean Society of Sericultural Science 2009 International Journal of Industrial Entomology Vol.18 No.2
The purpose of this study was to establish whether there are differences in the productivity of the same silkworm(Bombyx mori L.) parthenoclones, obtained by two different methods-thermal and combined, as well as to study their genotype structure by several enzyme loci. It was established that all individuals of parthenoclones Joana, Joana(${\downarrow}{\uparrow}$), Pohi and Pohi(${\downarrow}{\uparrow}$), are homozygous by the studied esterase and phosphoglucomutase loci, which substantiated the clones' genetic stability. By comparative analysis of some biological and technological properties, it was found that parthenoclone Pohi(${\downarrow}{\uparrow}$) obtained by low-high temperature activation is characterized by higher values of these properties as compared to parthenoclone Pohi obtained by thermal parthenogenesis. Comparing the two methods of inducing ameiotic parthenogenetic development, we would recommend that parthenoclone Joana is sustained by thermal parthenogenesis, and parthenoclone Pohi-by the combined method (low-high temperature).
Jolanda Bogdanova Vasileva,Teodora Atanasova Staykova,Panomir Ivanov Tzenov 한국잠사학회 2009 International Journal of Industrial Entomology Vol.18 No.2
The purpose of this study was to establish whether there are differences in the productivity of the same silkworm (Bombyx mori L.) parthenoclones, obtained by two different methods-thermal and combined, as well as to study their genotype structure by several enzyme loci. It was established that all individuals of parthenoclones Joana, Joana (↓↑), Pohi and Pohi (↓↑), are homozygous by the studied esterase and phosphoglucomutase loci, which substantiated the clones` genetic stability. By comparative analysis of some biological and technological properties, it was found that parthenoclone Pohi (↓↑) obtained by low-high temperature activation is characterized by higher values of these properties as compared to parthenoclone Pohi obtained by thermal parthenogenesis. Comparing the two methods of inducing ameiotic parthenogenetic development, we would recommend that parthenoclone Joana is sustained by thermal parthenogenesis, and parthenoclone Pohi-by the combined method (low-high temperature).