1. Living habits

Mandarin fish is a typical carnivorous fish. When artificially fed, it can be fed with dead fish, dead shrimp, etc. Male fish mature at the third age, and females mature at the fourth age. Their growth rate is faster, reaching 50 to 100 grams in the first year, about 0.5 kilograms in the second year, and 1 to 1.5 kilograms in the third year.

2. Pond conditions

The pond area is generally 2-4 acres, the water depth is about 2 meters, it is mainly rectangular, the water quality is fresh, there is little or no bottom mud, and drainage, irrigation and oxygenation equipment Complete

3. Feed fish cultivation?

The types of feed fish used to raise sweet-scented osmanthus in ponds include: silver carp, bighead carp, native dace, wheat dace, Thai dace, crucian carp, carp, etc. The bait coefficient is generally 4-5. According to the growth specifications and food intake of the mandarin fish, use a pond 3-4 times larger than the mandarin fish pond to cultivate and produce sufficient bait fish to feed the mandarin fish.

Early forage fish: Pre-stock 1 to 2 million fish fry (fish flowers) such as silver carp, bighead carp, earth carp, wheat dace, Thai dace, and crucian carp per acre in the pond where the sweet-scented osmanthus fish is to be stocked as sweet-scented osmanthus. Early bait fish for fish. Feed peanut bran, wheat hulls and other roughage. After 15-20 days of cultivation, when the bait fish grows to 1.5-2.5 cm in body length, use 0.7ppm copper sulfate and 0.5ppm strong chlorine to kill and disinfect, and then put it into 2- Cultivate osmanthus fry with a size of 3 cm.

Forage fish in the mid-term: 200,000 to 300,000 mud carp, wheat dace, Thai dace and other fry are polycultured per acre in the four domestic fish ponds. Silver carp, bighead carp, crucian carp and other fry can also be cultivated in special ponds as large fish fry. Specifications of sweet-scented osmanthus as bait fish.

Later-stage bait fish: In addition to self-produced fish, you can also purchase them from outside. Winter generally enters the later stage of breeding, and dace forage fish are prone to freezing to death. It is necessary to cultivate and prepare some silver carp, bighead carp, crucian carp and other cold-affected species of forage fish to survive the winter and be used as backup forage fish for mandarin fish in winter and spring.

4. Stocking of mandarin fish species

When raising mandarin fish alone, 800 to 1,000 mandarin fish species with a size of 8 to 10 cm can be stocked per acre. Some fast-reproducing fish can also be mixed in the mandarin fish pond as live feed. Generally, 200 to 400 pairs of tilapia broodstock or 60 second-winter-old crucian carp are stocked per acre. Divide the fish pond in half with a thin net, raise mandarin fish on one side, and raise other fish on the other, so that the breeding young fish can pass through the thin net and become food for the mandarin fish, and at the same time, the activities of the mandarin fish will not hinder other fish. Quiet reproduction of fish.

5. Feeding and management

1. Feeding: Use the method of feeding fish at intervals. In the early and late stages of breeding, feed every 7 to 10 days, and every 5 days in the mid-term. Feed left and right once, and the number ratio of mandarin fish to bait fish should be maintained at 1:5 to 10. Too few bait fish will affect the feeding and growth of mandarin fish, while too much will easily cause hypoxia and floating heads, which is detrimental to the growth of mandarin fish.

2. Water quality management: Add new water frequently, especially from June to September, add new water every 5 to 7 days, 15 to 20 cm each time, to keep the pool water fertile and active. , refreshing and tender, promotes the healthy growth of mandarin fish. Submerged plants such as Vallisnerium and Hydrilla verticillata can be planted around the pool to provide shelter for fish and at the same time purify the water quality. Sprinkle quicklime water every 15 to 20 days, 15 to 20 kilograms each time. Turn on the aerator in a timely and reasonable manner to increase the amount of dissolved oxygen in the pool water and prevent fish from becoming hypoxic. At the same time, some oxygenators should be prepared, which can be used to rescue fish when they float due to hypoxia.

Mandarin fish is also called mandarin fish, season flower fish, etc. It belongs to the order Perciformes and the genus Mandarin fish. It has a tall body with flat sides and a raised back. The mouth is large, with the lower jaw obviously longer than the upper jaw. There are small teeth of different sizes on the upper and lower jaws, vomer and oral bones. The posterior edge of the preopercular bone is serrated and there are 4 large spines on the lower edge. There are 2 large spines on the posterior edge of the posterior operculum. The head is scaly and the scales are small. The lateral line curves upward along the dorsal arc. The dorsal fin is divided into two parts, connected to each other, with hard spines at the front and soft fins at the back. The body is yellow-green, the abdomen is gray-white, and there are irregular dark brown spots and patches on the sides of the body. There is a long and narrow black band from the tip of the snout through the eye socket to the front and bottom of the dorsal fin.