Osmanthus fragrans can not only be mixed in a small amount in the pond to remove wild fish, but also be raised in a special pond, which is one of the popular varieties in freshwater culture at present. So,? Let me tell you below!

Selection of osmanthus fish pond mouth

The culture of osmanthus fish should choose a pond with leeward and sunny, little or no sediment, convenient drainage and irrigation, sufficient water, good and fresh water quality, and no polluted water flowing into it. It is best to have a few submerged plants at the bottom of the pond to meet the habit of sleeping in caves during the day and the needs of habitat and growth.

The area of the pond is 5-7 mu, and the water depth of the pond is 1.5-2 meters. If it is too small, the water quality is difficult to control, and if it is too large, the management is not very convenient. It is suggested that every 5 mu of pond be equipped with two 1.5kw blade aerators or an inflatable rod * * *. According to the needs, osmanthus fish culture ponds should be equipped with corresponding bait fish ponds, and the ratio of the area of osmanthus fish culture ponds to bait fish culture ponds is generally recommended to be about 1:3- 1:4.

The newly excavated pond depends on the soil quality. Acidic ponds and ponds with turbid water are not suitable for cultivating osmanthus fish. Osmanthus fragrans is timid by nature, so it is necessary to keep the culture environment of Osmanthus fragrans quiet as far as possible to avoid affecting its feeding and growth.

Pond preparation work

Before stocking, the fish pond should be thoroughly cleaned, the excessive silt in the water body should be removed, and the pathogenic bacteria should be completely killed by freezing and drying. It is suggested that quicklime 130- 150 kg of water should be sprinkled in the whole pond half a month before the bait fry are put into the pond, and water should be injected for about 50 cm 2-3 days after cleaning the pond, and the water injection port should be filtered with dense mesh.

Fish stocking

The fingerlings of osmanthus fragrans are generally stocked from late May to early June, and the water depth must be about 1 m when the seedlings are planted, and the general stocking density is 1500-2000 fish/mu. Don't deliberately pursue high-density stocking, and the general stocking specifications are better than 3-5cm/ fish, and the highest percentage is best according to the pond before stocking. The fingerlings are required to be physically strong, with complete scales and bright colors, with sufficient quantity at one time. The fingerlings stocked in the same pond should be of the same size, and the diseased, injured and deformed fingerlings should be eliminated as far as possible.

Pay attention to slow down the fry before stocking, put the oxygen bag into the pond 15-20 minutes, then put the fry into 2%-3% salt water *** 10℃ for about * * * minutes 10 minutes, and finally put them into the pond with water.

Feeding and selection of bait fish

Bait fish is the key to raise osmanthus fish well. Bait fish should be fish with wide seedling source, easy feeding, fast growth, high yield, convenient rotation, fresh, palatable size, no hard spines, timely supply and favorite by osmanthus fish. Generally, silver carp, wheat shad, shad and so on are selected, and the average stocking amount per mu is about 200,000-300,000, which should be stocked before the osmanthus fish are released.

Before stocking mandarin fish, 80-1500,000 shad flowers per mu were thickened in advance, and after about15 days, the shad flowers reached 4 * * *1.5 cm-2 cm * *, and the 3cm mandarin fish species began to be stocked. The bait fish must undergo strict disinfection before feeding. Generally, povidone iodine solution is safer. Generally, the palatable length of bait fish should be controlled at 1/2- 1/3 of the body length of osmanthus fish, and the body width should be smaller than the caliber of osmanthus fish.