A kind of stepwise method for cultivating grass carp

Abstract

The invention discloses a stepped grass carp culture method. The method comprises specific steps as follows: (1) fishpond construction: a mountain stream which has the stepped terrain and has the fall of 3-5 m is selected, multiple first-stage culture fishponds are built in the highest position, multiple second-stage culture fishponds are built in next stepped areas of the first-stage culture fishponds, the first-stage culture fishponds and the second-stage culture fishponds are connected through sewerage systems, water absorbing ends of the sewerage systems are arranged in the first-stage culture fishponds, water draining ends of the sewerage systems are connected to the second-stage culture fishponds, multiple stages of culture fishponds are sequentially arranged layer by layer, and adjacent culture fishponds are connected through the sewerage systems; (2) fry release; (3) feeding and daily management. Slopes can be utilized skillfully for stepped culture, the natural selenium-rich water source drawn from a high mountain is used, the content of oxygen and selenium in the culture fishponds is kept, so that grass carp is strong, has less fat and tastes fresh and crisp, the growth period is short, and the yield is high.

Description

【Technical field】

[0001] The invention relates to the field of cultivation, in particular to a method for stepwise cultivation of grass carp. 【Background technique】

[0002] Grass carp, also known as "grass carp" (Ctenopharyngodon idellus), the breeding method of ordinary grass carp is relatively simple, and there are many introductions in fish breeding methods. Grass carp is often used as The main object of stocking in ponds and lakes, reservoirs, and rivers. The meat of the grass carp produced is soft.

[0003] Grass carp generally likes to inhabit the middle and lower layers of rivers, lakes and other waters and areas with many aquatic plants near the shore. It has the habit of migratory rivers and lakes. Sexually mature individuals spawn in rivers, reservoirs and other flowing waters. After spawning, broodstock and juveniles enter tributaries and lakes through rivers, usually in flooded shoal grasslands and flooding areas and The water bodies attached to the main and t...

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