Grass carp culture technology
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The technical highlights of grass carp aquaculture are introduced as follows.
First, pond conditions. Choose a pond with less silt, good drainage and irrigation conditions, fresh water, an area of ​​2-3 mu and a pond with a water depth of 1.5-2 meters. If you use a moving water body, the effect is better.
Second, stocking requirements. Select grass carp weights of 0.9-1.3 kilograms per tail and require a healthy and disease-free body. After disinfecting the fish with bleach or salt, release the pond. It is advisable to use 150-200 kg per acre of stocking, and 50-60 stocks of white quail with a body length of 13-15 cm to control the water quality.
Third, the embrittlement season. From spring temperatures above 15°C, grass carp starts feeding until it stops. However, it takes less than 60-70 days to require brittle culture.
Fourth, feeding and management. The main feed is broad bean, plus a small amount of grass, and it cannot add any food at its price. Feeding methods, at the beginning, can be stopped for 2-3 days and then fed with a small amount of soaked shredded beans until grass carp eats. After timing, quantitative feeding, and fed with grass. Normally, they are fed once every 8-9am and 2-3pm, each time the amount of feed is about 5% of body weight, and the degree of eating is within 1 to 2 hours. Strengthen patrolling in peacetime, remove residual baits in time, and strictly prohibit the feeding of deteriorating feeds. After 60-70 days of fragile breeding, it can reach the market specifications of more than 2 kg and the purpose of crisp meat.