A quantifiable selection method for cocoon individuals that maintains the inherent traits of the original mother species of the silkworm

Abstract

The invention particularly relates to a quantifiable silkworm cocoon individual selection method capable of maintaining the inherent characteristics of the original mother species of silkworms. The method comprises the following steps: selecting X pieces of excellent silkworm cocoon female or male individuals in a selected and remained moth area, weighing the whole cocoon weight and the cocoon shell weight of each individual according to the sequence and calculating the cocoon layer rate; in each group of data about the weighed whole cocoon weight and the cocoon shell weight of the female or male individuals, finding out the maximum value A and the minimum value A of the whole cocoon weight and the cocoon shell weight separately; establishing formulas: A1 is equal to maximum value A*0.618plus minimum value A*0.382, and A2 is equal to maximum A*0.382 plus minimum value A*0.618; obtaining the whole cocoon weight or cocoon shell weight A1 and A2 separately (A1 is more than A2); and in each group of data about the weighed whole cocoon weight and the cocoon shell weight of the female or male individuals, separately labeling the individuals which are more than A2 and less than A1, wherein the labeled individuals with the whole cocoon weight and the cocoon shell weight are the selected target individuals and the aim of maintaining the inherent characteristics of the varieties is fulfilled. The method is simple, practicable and quantifiable and is capable of maintaining the inherent characteristics of the silkworm varieties.

Description

technical field [0001] The invention specifically relates to a quantifiable method for individual selection of silkworm cocoons for maintaining the inherent traits of the original and female silkworm species, and belongs to the technical field of silkworm breeding and breeding. Background technique [0002] The selection to maintain the inherent traits of silkworm species is divided into four stages: 1. Moth area selection at the egg stage. That is to say, among the numerous egg circles produced by different female moths, the selection of inherent traits such as egg color, egg quantity, and egg circle shape belongs to subjective impression selection. 2. Moth area selection during the breeding period. The moth intervals of the inherent traits such as feeding time, health, and dormancy were compared among the many moth areas raised, and the target moth area during the feeding period was selected. 3. Moth area selection at the cocoon quality stage. Sampling investigation of ...

AI Technical Summary

Problems solved by technology

[0010] ② Due to the emphasis on the selection of cocoon layer quantity and cocoon layer rate, it is easy to cause the cocoon layer to become thicker, the health and fecundity of the silkworm body are reduced, and the species change is caused

[0011] ③ There are many human-subjective factors, which can easily lead to wrong selection and missing selection

[0013] The disadvantage of this method is that ① Scoring or compiling selection index is more complicated and inconvenient to use

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