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Method for in situ breeding of procam barus clarkii in winter leisure rice field

A technology of prawn crayfish and paddy field is applied in the field of in situ breeding of prawn crayfish by using winter idle paddy fields, which can solve the problems of shortage of seedlings, lagging breeding scale, restricting the industrial development of prawn clarkii, etc. The effect of increasing seed yield

Inactive Publication Date: 2019-06-28
SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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Problems solved by technology

[0003] However, the seed breeding technology of Procambarus clarkii is relatively backward, and the breeding scale is seriously lagging behind, resulting in a shortage of seedlings and limiting the development of the Procambarus clarkii industry

Method used

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  • Method for in situ breeding of procam barus clarkii in winter leisure rice field

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Embodiment

[0031] (1) Selection and distribution of parents: On September 17, before the rice harvest, select the parents with complete limbs, no diseases and no diseases.

[0032] Mature Procambarus clarkii with injuries, strong mobility, size of 25-45g / tail, and different regions are used as parents. The male to female ratio of broodstock is 3:1, and the amount of feeding is 225kg / 667m 2 , paddy field area 1300m 2 .

[0033] (2) Intensive cultivation of parents: After the parents are put in, strengthen the prenatal nutrition intensive cultivation, feed animal feed and plant feed according to the ratio of 7:3, and the daily feeding amount accounts for 3%-5% of the body weight of the shrimp. Feeding once at 8-9 am, accounting for 20%-30% of the daily feeding amount; feeding once at 5-6 pm, accounting for 70%-80% of the daily feeding amount. Through intensive cultivation, enhance the physique of broodstock and improve the hatching quality of broodstock.

[0034] (3) Parental mating an...

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Abstract

The invention provides a method for in situ breeding of procam barus clarkii in winter leisure rice field, with an aim to solve the problem of the shortage of offspring seeds of procam barus clarkii in the winter leisure rice field through breeding of the procam barus clarkiil and promote steady development of rice and shrimp farming by adopting in situ breeding of the procam barus clarkii in thewinter leisure rice field which can be fully used in the mode. Through key techniques of 2) intensive parental breeding; 3), parental mating and egg bearing; 4), straw stubble and water level regulation and control of water-overflowed field; 6), water level management in winter and spring; 8), young shrimp breeding in spring and the like, the in situ breeding capability of the procam barus clarkiiis effectively improved, and yield of the offspring seeds is increased.

Description

technical field [0001] The invention relates to the technical field of Procambarus clarkii breeding, in particular to a method for in situ breeding of Procambarus clarkii by utilizing a winter slack rice field. Background technique [0002] Procambarus clarkii ( Procam barus clarkii ) Also known as freshwater lobster, crayfish clarkii, local name soil lobster, crayfish, belonging to the phylum Arthropoda, Crustacea, Decapod order, Crayfish family, Crayfish subfamily, and Procambarus genus. In recent years, due to the strong market demand, the scale of Procambarus clarkii farming has been expanding continuously. With the popularization and application of rice and shrimp comprehensive breeding technology, the development prospect of the Procambarus clarkii industry is even brighter. For example, the published Anhui Province local standard winter slack paddy field breeding technical operating procedures for Procambarus clarkii, etc., the current cultivation technology of Proca...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 王飞飞王信海王夏雯金倩张智慧
Owner SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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