A culture method for preventing Procambarus clarkii from precocious maturation

Abstract

The present invention proposes a culture method for preventing Procambarus clarkii from being precocious. The mode is as follows: water temperature 22-28°C; culture density: 10-30 / water tank, water body volume of the water tank is 65×45×22cm3; mass in the feed Components in percentage terms: fish meal 10‑50%, soybean meal 10‑50%, corn meal 15%, wheat flour 15%, minerals 1.5%, fish oil 1.5%, vitamin C 0.04%, dextrin 6.96%. The optimal solution is 30% fish meal, 30% soybean meal, 15% corn meal, 15% wheat flour, 1.5% minerals, 1.5% fish oil, and 0.04% vitamin C. Controlling the ratio of fish meal to soybean meal can control the precocious puberty of Procambarus clarkii. The invention is simple and easy to implement, suppresses the prematurity of the shrimp, increases the unit weight of the shrimp, and has certain economic benefits.

Description

technical field

[0001] The invention belongs to the technical field of aquaculture, and relates to a method for promoting the healthy culture of Procambarus clarkii (crayfish), in particular to a culture environment and nutritional factor conditions for preventing the premature maturity of the Procambarus clarkii. Background technique

[0002] Procambarus clarkii (Procambarus clarkii) belongs to Arthropoda, Crustacea, Decapod, also known as red marsh crayfish, commonly known as freshwater lobster or crayfish, is an important freshwater economic shrimp. However, the crayfish raised in the market are generally precocious, that is, the gonads of female and male individuals mature in advance, which makes the nutrient supply shift from growth and development to reproductive development in advance, resulting in the small adult shrimp of Procambarus clarkii, which does not grow well. Large, which seriously reduces the quality of commercial shrimp, and there is a serious shortage of...

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