Device and method for identifying development degree of ovary of eriocheir sinensis

Abstract

The invention relates to a device and method for identifying the development degree of an ovary of eriocheir sinensis. The device comprises an identification pool and a cover plate located at the top of the identification pool, the identification pool comprises a male crab area located at a center and a plurality of channels coaxially arranged from inside to outside, a screening plate is arranged between every two adjacent channels, each screening plate is provided with a one-way door and an air hole, the number of the air holes increases gradually from the periphery of the identification pool to the male crab area, the number of the one-way doors decreases gradually from the periphery of the identification pool to the male crab area, the height of the one-way doors decreases gradually from the periphery of the identification pool to the male crab area according to an arithmetic progression, and the width of the channels increases gradually from the periphery of the identification pool to the male crab area according to a Peiboci progression. According to the device and method, the defect that the gonad development degree cannot be accurately judged by manually identifying external characteristics is overcome, feasible equipment is provided for automatically screening the gonad development maturity, and reference is provided for judging the commercial value of the eriocheir sinensis with different gonad development degrees.

Description

technical field [0001] The invention relates to the technical field of quality selection and regulation of Chinese mitten crabs, in particular to a device and method for identifying the ovarian development degree of Chinese mitten crabs. Background technique [0002] Eriocheir sinensis is delicious and rich in nutrients. It is deeply loved and occupies an important position in aquatic product farming. It has important market value and broad market prospects. As a part of crab roe or crab paste, gonads of Chinese mitten crab determine the value of the product. The maturity of gonads is higher, and the fuller the crab roe, the richer the flavor substances it contains. How to accurately judge the state of gonad development of Chinese mitten crab to better determine its commodity value and strive for maximum economic benefits has become a problem that plagues practitioners in the Chinese mitten crab industry. In addition, during the breeding season of Chinese mitten crabs, tech...

AI Technical Summary

Problems solved by technology

In addition, during the breeding season of Chinese mitten crabs, technicians often select species of crabs by identifying the external characteristics of Chinese mitten crabs based on experience. This method requires inspection of large groups one by one, and manual selection errors are relatively large. The poor gonad development of artificially selected crab species will inevitably lead to a decline in the emergence rate and even the quality of crab seedlings, which will bring serious losses to the Chinese mitten crab industry.

Images