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Tussah larva hunger-resistant and nutrition stress-resistant breeding method

A nutritional stress and hunger-resistant technology, which is applied in animal husbandry and other fields, can solve problems such as breeding methods for tussah-free varieties, and achieve the effects of shortening the breeding period, reducing environmental errors, and high efficiency

Active Publication Date: 2022-07-05
辽宁省蚕业科学研究所
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Problems solved by technology

[0006] However, there is no related technology about the selection and breeding methods of tussah silkworm varieties under starvation stress and nutritional stress in this area

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  • Tussah larva hunger-resistant and nutrition stress-resistant breeding method

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Embodiment Construction

[0030] In the embodiment of the present invention, a method for selection and breeding of tussah larvae resistant to starvation and nutritional stress, comprising the following steps:

[0031] Step 1. Parental Screening: Collect 12 tussah species with different characteristics for single moth seed production, and stock 10 single moth areas for each species to investigate the number of eggs laid, practical hatching rate, ant cocooning rate, morbidity rate, thousand The cocoon weight and the amount of eggs collected in kilograms were analyzed by principal component analysis using DPS data processing software to calculate the comprehensive score of the comprehensive production performance of each variety, and the comprehensive production performance was sorted, and the tussah silkworm varieties with excellent economic traits and vitality traits were screened out;

[0032] Step 2, parent grouping: select the tussah variety Liao silkworm 582 with high quality, high yield and high fe...

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Abstract

The invention relates to the technical field of antheraea pernyi breeding, in particular to an antheraea pernyi larva hunger-resistant and nutrition stress-resistant breeding method which comprises the steps of 1, parent screening, 2, parent matching and 3, hybridization breeding. A new tussah variety which has higher adaptability to a bad tussah garden is obtained through hunger resistance and nutrition stress identification verification and a purebred comparison test, the variety has better adaptability and hunger resistance to the tussah garden with old and hard oak leaves, and the comprehensive production performance of the tussah variety reaches the production practical variety level; the phenomena that oak leaves are old and hard and autumn oak trees are dried early due to soil deterioration of the oak garden in the tussah production process are solved, and the problems that the tussah larva loss rate is high, and softening diseases occur frequently are solved.

Description

technical field [0001] The invention relates to the technical field of tussah silkworm breeding, in particular to a method for selection and breeding of tussah silkworm larvae resistant to starvation and nutritional stress. Background technique [0002] The tussah belongs to the Lepidoptera Saccharidae family, which originated in China and is a unique silk-secreting insect with high economic value in my country. It is an important part and the main source of income for some mountain farmers. [0003] Tussah silkworms are stocked in wild tussah gardens, and are greatly affected by abiotic factors (low temperature and chilling damage, strong wind, heavy rain, high temperature, drought, sunlight, nutrition, hunger, pesticide pollution, etc.) and biological factors (viruses, bacteria, etc.), especially In recent years, the soil fertility of the tussah garden has declined, the old and hard leaves of tussah trees and the early drying of tussah trees in autumn often occur, resultin...

Claims

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Application Information

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IPC IPC(8): A01K67/04
CPCA01K67/04Y02A40/81
Inventor 焦阳吴艳钟亮姜晓旭徐亮戚俐宿桂梅
Owner 辽宁省蚕业科学研究所
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