Evaluation of performance from the silkworm (Bombyx mori L. when it is fed with mulberry clones in different phases of development

Authors

  • Antonio José Porto Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro Estadual de Pesquisa Aplicada em Sericicultura, Nova Odessa, SP

Keywords:

mulberry clones, phases of development, silkworm

Abstract

The experiment was developed at Centro Estadual de Pesquisa Aplicada em Sericicultura of Instituto de Zootecnia, Gália city, São Paulo State, Brazil, during the spring of 1996. The objective was to evaluate biological performance (larval period duration and cocoon formation) and productive (cocoon weight, cocoon shell weight, silk net and cocoons quantity per kilogram of sample) from the silkworm (Bombyx mori L.), when it is fed in the final period of its larval phase (5° instar), with mulberry leaves harvest from some clones, in three phases of vegetative development, after pruning. Analysing the biological performance, it was noticed a tendence of variance in the larval period duration in order of the plant development phase and the utilized clone, whereas, to the character cocoon formation, any decorrent influence of the treatments was observed. Regarded to productive performance, upper values of cocoon€™s weight and cocoon€™s shell weight, which resulted in a smaller number per kilogram of sample, they were obtained from the treatment where mulberry harvest leaves were provided to the worms in a development of thirteen weeks, to the IZ-56/4 and IZ-40 clones and roughly ten weeks to the IZ-10/4 and Korin clones. To the silk net character content any significant variance was observed.

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Published

2013-12-05

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Evaluation of performance from the silkworm (Bombyx mori L. when it is fed with mulberry clones in different phases of development. (2013). Bulletin of Animal Husbandry, 54(2), 81-88. http://bia.iz.sp.gov.br/index.php/bia/article/view/964

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