High density culture of wheat spike fish

The stocking density of wheat spike fish culture is 8-10 head / mu. The pond should be disinfected 7-10 days before stocking, and oil bran or self-made compound feed can be fed. In the early stage of wheat ear fish fry to maintain a low water level, that is, 50-80 cm, after the water temperature rises and the fish grow up, water injection of about 20 cm per week. If the body of water in the pond becomes fat, replace 1 pound of water every 5 days. In addition, germicidal and insecticidal drugs should be sprinkled in the whole pool regularly to prevent and control the disease.

The specific high-density culture techniques of wheat ear fish are as follows:

1. Restocking of wheat ear fish fry

Before 7-10 days of stocking, the pond should be thoroughly cleaned and disinfected with quicklime, and then biological fertilizer should be applied to cultivate rotifers. The transparency of the pond water should be kept at 20-25 cm. Put 8-100000 wheat ear fish summer flowers per mu and feed oil bran according to the season, temperature and growth conditions, generally 1-3 times a day, after 3-5 months, it can reach the commodity specification, 120,160 per kilogram.

two。 Feed for wheat spike fish

Wheat ear fish is omnivorous fish, staple food zooplankton, can be fed with oil bran or self-made compound feed, feed formula is domestic fish meal 38%, rapeseed meal 21%, corn meal 12%, wheat meal 29%. Normally, it is fed twice a day, and the feeding amount is about 5% of the body weight of the fish in the pond.

3. Water quality management

Fish fry in the early stage to maintain a low water level, generally at 50-80 cm. With the growth of the fish and the rise of the water temperature, the water level continues to deepen, generally once a week, about 20 cm each time. When the pond water is fertilized, the water quality can be improved by reasonable water injection and fertilization, and uninterrupted circulating micro-flow water should be adopted if necessary. Generally, the water is changed once every 5 days, and the amount of water exchange is 5 times of that of the pool water, and the microbial preparation is applied every 10-15 days.

4. Disease prevention and cure

In order to prevent the occurrence of some bacterial diseases, germicidal and insecticidal drugs such as strong chlorine, chlorine dioxide, avermectin or deltamethrin are regularly sprinkled in the whole pool, and diseases are prevented and treated strictly in accordance with the guidelines for the use of fishery drugs, and no illegal drugs are used.

Wheat ear fish can be used as a high-quality bait fish, its taste is delicious, the practice is simple, as a delicious, nutritious edible fish is also very good.