Investigation on Season Effects on Efficiency of Individual Selection System and Performance Response in Silkworm

Seidavi, Alireza; Mirhosseini, S. Z.; Mavvajpour, M.; Bizhannia, A R; Ghanipoor, M

doi:10.1142/9789814295048_0014

Cited by 4 publications

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“…2007 ) can improve economical traits during consecutive generations. Another study that investigated the effect of individual selection based on cocoon weight of a 31 × 32 hybrid found significantly higher performance in the selected group than in the control group ( Seidavi et al. 2008 ).…”

Section: Resultsmentioning

confidence: 99%

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Comparison of Phenotypic Value Changes in Pure Lines of Bombyx mori (Lepidoptera: Bombycidae) During Consecutive Generations Following Initial Selection on Cocoon Weight

Seidavi

Goldsmith

2014

Journal of Insect Science

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The experiments reported here were conducted to investigate the effect of selection on three quantitative traits, namely cocoon weight, cocoon shell weight, and cocoon shell percentage, during four generations by rearing six pure breeds of domesticated silkworm, Bombyx mori L. (Lepidoptera: Bombycidae) of Chinese and Japanese origin compared with random unselected groups as controls. All stages of rearing and data recording were performed over four rearing periods, with generations 1–3 during successive spring seasons and generation 4 during the autumn season in year 3. Each pure line contained two groups of selected and random (control) groups. Comparisons included the effect of selection methods, pure line, and generation on the phenotypic values. We found strong main effects of pure line, generation, sex, and group and support for nearly all interactions between these main effects for all three response traits. The results indicated that cocoon weight and cocoon shell weight in the selected group were higher than in the control or nonselected group. Both selected and nonselected groups had the lowest cocoon weight, cocoon shell weight, and cocoon shell percentage in the fourth generation when environmental conditions during the autumn season were less favorable than spring. The cocoon weight and cocoon shell weight averages were higher for nonselected groups in the second and third generations, and for the selected group in the first generation due to the direct effect of selection.

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Section: Resultsmentioning

confidence: 99%

“…These studies showed that hybrids had a significant response to parental selection, and their responses to selection were significantly different. In another report ( Seidavi et al. 2008 ), researchers studied the phenotypic responses of different varieties to parental phenotypic selection based on cocoon weight.…”

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confidence: 99%

Comparison of Phenotypic Value Changes in Pure Lines of Bombyx mori (Lepidoptera: Bombycidae) During Consecutive Generations Following Initial Selection on Cocoon Weight

Seidavi

Goldsmith

2014

Journal of Insect Science

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“…The quality of leaves fed to worms is considered to be the most important factor for good cocoon crop production. Since the silkworms attain short period of time to synthesize silk, the nutrient content of the mulberry leaf meals greatly affects and determine the growth and development of the larvae and cocoon production (Seidavi et al, 2005;Kanafi et al, 2007;Rahmathulla et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Productive Performance of Philippine Silkworm (Bombyx Mori L.) Purelines Fed with Folic Acid-Enriched Mulberry Leaves

2024

Int. J. Biosci.

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Low silk production has been attributed to the low quality of mulberry leaves fed to silkworms during rearing.Thus, quality of mulberry leaves should be enhanced. This study determined the efficacy of folic acid-enriched mulberry leaves in the performance of silkworms and silkmoth egg production. Fifth instar larvae of the six (6) silkworm purelines were used in the study. Mulberry leaves were supplemented with 0.001% Folic Acid (T1) and 0 .002% Folic Acid (T2) and compared to the Control (No Supplementation). Results showed that the larvae, cocoons and eggs produced by the silkworm purelines fed with folic acid supplemented mulberry leaves were significantly affected based on the weight of 10 matured larvae, single shell weight, single cocoon weight, effective rearing rate (ERR), cocoon yield per box (CYPB), and fecundity. An interaction effect on the effective rearing rate (ERR) and cocoon yield per box (CYPB) from silkworm fed with folic acid supplemented mulberry leaves revealed significant differences among all treatments and breeds. It can be noted that folic acid-enriched mulberry leaves fed to silkworms tend to have higher results as compared to the control treatment (CT) on all the parameters of the study.

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“…), which are crucial for its nutrition, silk production and cocoon formation. Since B. mori must be raised indoors, they are susceptible to various infectious diseases caused by bacteria, viruses, fungi, and protozoa (Seidavi et al, 2005;Hiware, 2006). Mulberry is cultivated in Africa, Asia and Europe as raw materials, mostly for the silk production and medical beauty industries (Yuan and Zhao, 2017).…”

Section: Introductionmentioning

confidence: 99%

Intestinal Immune Responses of the Silkworm Larvae, to Bacterial Leaf Blight Caused by Pantoea ananatis

Shahin,

Khamis,

Shams

2024

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Investigation on Season Effects on Efficiency of Individual Selection System and Performance Response in Silkworm

Cited by 4 publications

References 0 publications

Comparison of Phenotypic Value Changes in Pure Lines of Bombyx mori (Lepidoptera: Bombycidae) During Consecutive Generations Following Initial Selection on Cocoon Weight

Comparison of Phenotypic Value Changes in Pure Lines of Bombyx mori (Lepidoptera: Bombycidae) During Consecutive Generations Following Initial Selection on Cocoon Weight

Productive Performance of Philippine Silkworm (Bombyx Mori L.) Purelines Fed with Folic Acid-Enriched Mulberry Leaves

Intestinal Immune Responses of the Silkworm Larvae, to Bacterial Leaf Blight Caused by Pantoea ananatis

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