Large-scale family juvenile crab soil pool culture method for eriocheir sinensis
The technology of a Chinese mitten crab and its cultivation method is applied in the field of cultivation and reproduction of aquatic products, which can solve the problems of poor survival rate, poor emergence rate and high cost, and achieve the effects of improving the emergence rate and survival rate, low requirements and good self-purification ability.
Inactive Publication Date: 2012-12-12
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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[0003] The purpose of the invention is to invent a large-scale Chinese mitten crab that directly produces crab seedlings in earthen ponds for the problems of poor survival rate, seedling emergence rate and high cost in the existing single pond and net cage family lineage crab seedling production methods. Cultivation method of family crab seedling earthen pond
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] Such as Figure 1-2 shown.
[0022] A kind of earthen pond cultivation method of Chinese mitten crab large-scale family crab seedlings, it comprises the following steps:
[0023] First, choose an earthen pond with good water fluidity as the cultivation pond;
[0024] Secondly, with 60-80 purpose sieve silk sheet 1, above-mentioned soil pool 2 is divided into several partitions 3 that do not affect the flow of water body, as figure 2 As shown, the upper edge of each sieve sheet 1 is tensioned with wire or cable 4 and is more than 30 centimeters above the water surface (wherein the optimum height is 40 cm or more), the lower edge of each sieve sheet 1 Connect a gabion 5, the gabion 5 is buried in the slot at the bottom of the pool, and the gabion is filled with stones 6; as figure 1 As shown, taking a 600-square-meter earthen pond as an ex...
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The invention relates to a large-scale family juvenile crab soil pool culture method for eriocheir sinensis. The method is characterized by comprising the following steps that firstly, a soil pool with good water body flowability is selected to be used as a culture pool; secondly, bolting silk net piece is used for cutting the soil pool into a plurality of partition spaces which do not influence the water body flowability; thirdly, each family oogenesis female crab is singly placed into a cage, then, a cage containing the female crab is hung in the corresponding partition spaces, the water temperature and the seawater salinity are controlled, the water body flowability is maintained for young crab releasing; fourthly, the cage containing the female crab is moved away after the young crab releasing, the family larva culture is carried out until the larva grows into megalopa; and finally, the water desalting and the final night lamp light trapping are carried out in the original partition space, and the juvenile crab culture is completed. The method provided by the invention has the advantages that the requirement on a hatching pool is low, but the larva production environment is directly connected with the pool bottom, the pool bottom microbe purification capability is good, and the production environment is excellent, so few pools can be used for producing more family juvenile crabs, and in addition, the emergence rate and the survival rate of each family are greatly improved.
Description
technical field [0001] The invention relates to a method for cultivating and propagating aquatic products, in particular to a method for cultivating seedlings of mitten crab sinensis, in particular to a method for cultivating seedlings of Chinese mitten crab in large-scale families in earthen ponds. Background technique [0002] Eriocheir sinensis is a popular aquatic product. With the continuous development of the Chinese mitten crab breeding industry, breeding enterprises and farmers have a strong demand for selected and bred excellent crab seedlings. At present, family selection is one of the main methods for the selection of fine strains of Chinese mitten crab. The existing seedling breeding methods for Chinese mitten crab families can be roughly divided into two types: single-pond seedling cultivation and net-cage seedling cultivation. Among them, single-pond seedling cultivation refers to placing the ovum-bearing female crabs after mating in a single earthen pond....
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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 葛家春赵沐子许志强丁淑燕李跃华
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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