Culture conditions of Osmanthus fragrans

Sweet-scented osmanthus fish is a specialty fish in Guangxi, its meat is tender and smooth, the fine thorns are less, the soup boiled out is very delicious, and the market demand is good. What are the conditions for the culture of osmanthus fish?

Culture conditions of Osmanthus fragrans

1. The ponds for raising sweet-scented osmanthus fish require good bottom quality, and the water quality of the ponds with good sediment is also better, and the general culture is relatively smooth. It is required that the silt in the bottom of the pond should be about 10 cm, and the silt should not be too deep. In addition, the sandy loam is better, and the sandy soil has strong water purification capacity, which is suitable for relatively low-yield fish ponds, such as less than 3000 jin / mu, and the loam is highly adsorptive, suitable for high-yield fish ponds, such as more than 4000 jin / mu.

2. The water quality of the pond where sweet-scented osmanthus fish is raised is better with medium fertility. The growth rate of thin water quality is slow, and the disease occurs frequently. The over-fertilized water has more organic matter and oxygen consumption factors, and the water quality is easy to deteriorate. The medium-fat water plankton has a large content of plankton, more oxygen production by photosynthesis and rich dissolved oxygen, and there are many microorganisms, which are often dominant in beneficial populations and inhibit the reproduction of disease microorganisms, so there are few diseases.

3. Sweet-scented osmanthus fish is a benthic fish with high oxygen consumption rate and weak tolerance to hypoxia. Sweet-scented osmanthus fish ponds should be equipped with drainage and irrigation and oxygen-increasing equipment.

4. The Roots fan cannot be opened during the high temperature period, but should be opened more in low temperature, cloudy and rainy days and at night. The impeller aerator cannot be opened in the turbid pond during the high temperature and sunny day. If the aerator is not turned on at this time, the dissolved oxygen at the bottom of the pond will be higher, and the self-purification capacity of the water body will be enhanced at the same time. On the other hand, the water is thick green or on cloudy and rainy days, the water quality of cultured sweet-scented osmanthus fish in some areas is not enough to increase oxygen in cloudy and rainy days, sweet-scented osmanthus fish is in a state of long-term sub-hypoxia, and there will be more diseases in aquaculture. This is typical of Jiangsu during the rainy season from July to August, and the effect of waterwheel on water muddy and water depth is not very good.

5. In order to balance the nutrition of sweet-scented osmanthus fish, many kinds of feed fish should be fed. Before feeding the feed fish, the feed fish must be sterilized by medicine bath to prevent the pathogen from being brought in by the feed fish and cut off the pathogen transmission.

In the process of sweet-scented osmanthus fish culture, we should pay more attention to the changes of water quality and take more targeted preventive measures.