Matters needing attention in culturing grass carp

Grass carp as one of the four major freshwater farmed fish in China, has entered thousands of households, ordinary people also have simple grass carp culture, grass carp culture is relatively simple, high yield, easy to manage. What I share today is the experience of how to manage grass carp farming on a large scale. Previous articles have also talked about grass carp.

First of all, we have to select the site and preparation, the location is very important, the pond should be quiet, far away from the pollution source, the surrounding vegetation is rich, there is shade, but not too much shade, clean water, good protective measures, to avoid small sundries into the pond, family unit farming 5-10 mu, completely enough, flat bottom, sediment 10-20 cm, water depth of about 2 meters, aerator, in preparation for timely change of water and oxygen. There should be a spare pump.

2. Cleaning and disinfection: since grass carp are prone to diseases, we have to thoroughly disinfect grass carp from the bottom of the pond, expose the bottom of the pond for more than a week, sprinkle quicklime, turn the pond once, sprinkle quicklime, then draw water, store water, sprinkle quicklime and rest for about ten days. this can basically kill most of the germs and eggs, as the pond is more prone to epidemics, so we must not be careless. After rest, observe whether there are any small miscellaneous fish and release grass carp fry.

3. Water quality requirements: the water quality of the pond requires a pH value of 7.5 to 8.5, and the transparency of the pond water is kept at about 30 cm during the peak culture period (June to September). Feed preparation and feeding. Forage 50%, rice bran 22.5%, wheat bran 5%, bean cake 15%, salt 0.5%, vitamin additive 1%, feed crude protein content 20%, according to the growth of fish fry, add appropriate amount of sweet potato meal, corn meal, green feed. The cost of breeding is actually not high. Wait until the adult fish, green feed every day does not matter, it is very simple, it is necessary to prevent and control diseases. Oxygen is increased at five o'clock in the morning, in the afternoon, continuously in cloudy days and intermittently in sunny days. The diseases that need to be paid attention to are Gill rot, enteritis, red skin disease, blood Gill.

To patrol the pond every day, to prevent, early detection, early treatment, if you find mild symptoms, you can use bleach, chlorine dioxide sprinkled for a few days, the situation is determined, if there are signs of deterioration, consult a doctor in time. Reading is easy, hand code is difficult, and read and cherish! Thank you!