A device and method for identifying the degree of ovarian development of Chinese mitten crabs
A technology of Chinese mitten crab and ovary development, which is applied in application, climate change adaptation, fish farming, etc., can solve the problems of large errors in manual selection, decline in the quality of crab seedlings in emergence rate, and economic losses in the Chinese mitten crab industry. Achieve the effect of convenient operation, saving manpower and compact structure
Active Publication Date: 2022-04-26
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1
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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.
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[0028] The following in conjunction with the accompanying drawings, illustrates a specific embodiment of the present invention.
[0029] as Figure 1-Figure 4 As shown, the apparatus for identifying the degree of ovarian development of Chinese river crabs, comprising a identification pool 1, a cover plate 16 located at the top of the identification pool 1, the identification pool 1 includes a male crab area located in the center, several channels set from the inside to the outward coaxial, a screening plate is provided between the adjacent two channels, each screening plate is provided with a one-way gate and a vent, the number of vents increases from the outer periphery of the identification pool 1 to the male crab area, the number of one-way gate decreases from the outer edge of the identification pool 1 to the male crab area, The height of the unidirectional gate follows the decrement of the male crab region from the periphery of the self-identifying pool 1 to the male crab area...
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The invention relates to a device and method for identifying the development degree of the ovary of Chinese mitten crabs, comprising an identification pool and a cover plate located on the top of the identification pool, the identification pool includes a male crab area located in the center, and is coaxially arranged from inside to outside There are a number of passages, and screening plates are set between two adjacent passages. Each screening plate is provided with one-way doors and air holes. The number of air holes increases from the periphery of the identification pool to the male crab area, and the number of one-way doors is from the identification pool. The periphery decreases toward the male crab area, the height of the one-way gate decreases from the periphery of the identification pool to the male crab area, and the width of the channel increases from the periphery of the identification pool to the male crab area, following the Fibonacci sequence. The invention overcomes the inability to accurately judge the degree of gonad development by manually identifying external features, not only provides feasible equipment for automatic screening of gonad development maturity, but also provides a reference for judging the commercial value of Chinese mitten crabs with different degrees of gonad development.
Description
Technical field [0001] The present invention relates to the field of quality selection and regulation technology of Chinese river crab, in particular a device and method for identifying the degree of ovarian development of Chinese river crab. Background [0002] Chinese river crab is delicious, rich in nutrients, deeply loved, occupies an important position in aquatic product breeding, has important market value and broad market prospects. As part of crab yellow or crab paste, the developmental state of Chinese river crab determines the level of commodity value, and its gonadal development maturity is higher, and the fuller the crab yellow, the richer the flavor substances contained. How to accurately judge the gonadal development status of Chinese river crab to better determine its commodity value and strive for maximum economic benefits has become a problem that plagues practitioners in the Chinese river crab industry. In addition, in the breeding season of Chinese river crab,...
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IPC IPC(8): A01K61/59A01K63/00A01K63/04
CPCA01K61/59A01K63/003A01K63/042A01K63/006Y02A40/81
Inventor 苏胜彦赖婷刘爱民唐永凯周爱民穆站昆王美垚李建林李红霞徐跑
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI