Investigation method of 24h hair-thinning rate of ants harvested by artificial feed for silkworm

Abstract

The invention discloses a survey method for 24h setae dispersion rate of newly hatched silkworm during silkworm artificial feed cultivation. A digital camera is used for taking pictures which are still clear and visual after the pictures are enlarged through drawing software and can be stored for a long time and is used for surveying of the 24h setae dispersion rate of the newly hatched silkworm during artificial feed cultivation of the silkworm. Compared with a traditional survey method which is long in survey time, large in difficulty and poor in precision and can cause silkworm cultivation vessel contamination easily, the method is short in test data collecting time and visual and can conduct re-check easily, the pictures can be stored for a long time, feed contamination of silkworm cultivation vessels caused by survey can be reduced, and the method can be widely applied to artificial feed cultivation silkworm varieties, silkworm artificial feed cultivation and a novel silkworm artificial feed researching process.

Description

technical field [0001] The invention belongs to the technical field of investigation of feeding habits selection in silkworm artificial feed breeding process, and in particular relates to a method for investigating the 24-hour hair-thinning rate of silkworm harvesting ants during artificial feed breeding. Background technique [0002] Planting mulberry and raising silkworms originated in China and has a history of more than 5,000 years. Silkworm, also known as silkworm, is an oligophagous insect that mainly feeds on mulberry leaves. So far, silkworms are mainly raised with mulberry leaves in production. In order to realize labor-saving and large-scale sericulture, Japan first studied artificial feed for silkworms in 1930, and began to promote artificial feed for small silkworms in 1977. In the 1970s, my country also began to study artificial feed for silkworms. At present, the cultivation of silkworms with artificial feed is still in the laboratory and the pilot stage in ru...

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Problems solved by technology

In the 1970s, my country also began to study artificial feed for silkworms. At present, artificial feed silkworm breeding is still in the laboratory and rural pilot stages.

[0003] However, for a long time, there have been few reports on the investigation method of "24-h hair thinning rate of ants harvesting". The number of ants and silkworms harvested for 24 hours and the total number of ants and silkworms harvested are used to calculate the "24 hours of hair thinning rate for ants harvested"

There are many problems in this method, mainly as follows: (1) when the ants are harvested for 24 hours, the body length of the 1st instar silkworm is 3-4mm, the silkworm body is small, the counting is difficult, the operation time is long, and the accuracy is poor; (2) the on-site counting time Changhe’s counting operation itself can easily cause feed pollution in the sericulture container, which will affect the sericulture work in the later stage; (3) The results of the on-site counting and counting investigation are only statistical figures, which are not intuitive and cannot be reviewed

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