Siniperca chuatsi is a tender fish with few thorns and a lot of meat, and its meat is in the shape of a petal with a delicious flavor, which is really a good product among the fish. So how much do you know about Mandarin fish feeding methods? The following is organized by me on how to raise Mandarin fish content, I hope you like!

Siniperca chuatsi rearing methods

Fish fry cultivation

Hatching out of the membrane of the body of the fish fry delicate and tender, body length of only 3 ~ 4 mm, such as will not yet eat the fry into the pond cultivation, the survival rate is extremely low, and even all will die. In order to improve the survival rate, generally use the hatching tank running water to cultivate the fry. Its water capacity of 350 to 400 kilograms of hatching tank can be put just out of the film within 5 days of the fry 500, the water flow rate should be smaller than the hatching. The fry are very selective in feeding, usually feeding the freshly released pomfrets or other fry as the opening bait (whether they can eat the first fry is the key to the success of cultivation of the arowana fry), and at the early stage of feeding, they only swallow 1~2 fry per day, and then increase to 5~6 fry per day successively. After 5~7 days of feeding, the arowana fry can grow up to the size of a watermelon seed. Watermelon seed? After 5~7 days of feeding, the arowana fry can grow to the size of watermelon seeds, and melanin appears on the body surface.1 4-day-old arowana fry can eat 15~20 fry per day. When kept in the hatchery tank, it was found that when there were no other fry to feed, the arowana fry would swallow each other's food. The arowana fry will eat each other. Therefore, feed enough palatable baitfish during this period. bait fish?

Fish breeding

Pond conditions The pond for Mandarin fish requires a sandy bottom, little silt, an area of 2 to 3 acres, a water depth of 1.5 meters or more, easy drainage and irrigation, light water, no turbidity, no inflow of sewage and a small amount of submerged aquatic grass fish ponds. Newly opened pools depend on the soil quality, acidic pools and pools with easily turbid water are not suitable for raising Mandarin fish. Cultivation of Mandarin fish

2, pond preparation and cultivation of forage fish:

(1) in April 5 with quicklime to clear the pond, in April 10 before and after the four corners of the pool heaped grass fertilizer, (such as the bottom of the pool is better than fertilizer can not be fertilizer) and filling new water 0.8 ~ 1.0 meters to cultivate the quality of the water to cultivate the natural bait for forage fish.

(2) forage fish are generally crucian carp fry. Around April 15, the fish nest with crucian carp eggs (floating handle) into the pond for hatching, the density of fry is generally controlled at about 500,000 per mu. Eggs can be placed in 2 to 3 batches, each batch separated by one day, such as 1-3-5. This can take into account the different specifications of the Mandarin fish fry have palatable bait.

(3) with the method of controlling the amount of feed feeding to make the specifications of feed fish. Generally stocking specifications for about 2 centimeters of Siniperca chuatsi fry, feed fish specifications can be controlled at about 1.2 centimeters.

3, Mandarin fish fry stocking and cultivation:

(1) Mandarin fish fry into the day before, add 10 centimeters of water (such as the water quality of thick can be changed to 1 / 3).

(2) Siniperca chuatsi fry stocking density of about 4000 tails / mu.

(3) Check the density of forage fish in the pool, timely supplementation of palatable forage fish.

(4) Pay attention to water quality changes and weather conditions, poor water quality and timely water changes.

(5) Disease prevention and control: mainly for oblique tube worm, rotifers and other ciliates, fingerling incidence is low. Prevention and control methods see adult fish culture.

Adult Siniperca chuatsi

Fish pond conditions

Adult Siniperca chuatsi fish culture ponds require sandy bottom, less silt (about 15 cm), an area of 3 to 8 acres, a depth of water of more than 1.5 meters, drainage and irrigation is convenient, the quality of the water is good, there is no inflow of sewage and there are a small number of submerged aquatic grasses of the fish pond. Pools around the depth of 30 ~ 40 centimeters to dig a circle of shallow ditch, so that Mandarin fish fishing.

Pond cultivation

(1) 10 to 12 days before the stocking of bait fish, use quicklime to disinfect the pond.

(2) natural bait cultivation: in the feed fish fry (bream, silver carp, carp, etc.) 7 days before stocking, add water to 60 centimeters, and per mu of water surface to put about 150 kilograms of decomposed fertilizer (the bottom of the pool fertilizer can not be applied), in order to cultivate the rotifers, branches and horns and other zooplankton.

⑶ feed fish cultivation:

① feed fish species and stocking density: feed fish are generally silver carp, crucian carp, pangasius, etc., mu stocking amount of about 30 million.

② feed fish fry into the day before, add 10 centimeters of water, so that the water quality is fresh and rich in natural bait. Fish fry into the bait without immediately, but need to daily observe the density of fish fry, body quality, growth rate and the number of red worms in the water, to be the number of red worms to reduce the number of fish fry in the pool around the time of feeding, and immediately with a thick slurry? The first thing you need to do is to check each casting several times a day. and several times a day to check the situation of the feeding points, in the pre-feed to eat that is, in the later stage should be controlled by the specifications of the feed fish. Generally stocked 8 to 10 centimeters of Mandarin fish species, the specifications of the feed fish should be controlled in 3 to 4 centimeters or so.

③ feed fish cultivation can also be put into some of the old loach, reproduction of small loach can be used as quality bait Siniperca chuatsi.

④ The ratio of Mandarin fish breeding area and feed fish pond area is generally 1:3~4. Mandarin fish farm

Feeding management of Mandarin fish

(1) Feed feeding:

①Feed fish can be chosen from pangolin, silver carp, crucian carp, grass carp and so on.

② Feeding techniques:

a, regular (3 to 5 days for 1 period) put supplemental feed fish.

b. Judgment of the number of forage fish in the pool:

When there are enough forage fish in the pool, Mandarin fish pursue bait fish at the bottom of the water, so there are only small splashes of stars on the surface of the pool. When listening carefully, the water sound made by the fish when chasing forage fish is small and the interval is large. If there are not enough forage fish in the pool, Mandarin fish chase forage fish to the upper layer of the water, so the water splash is big and the sound emitted is frequent and loud. If you see Siniperca chuatsi fish in groups chasing feed fish at the edge of the pool, it means that the feed fish in the pool has been basically eaten up.

c. Palatability of feeder fish:

The specification of palatable feeder fish is generally about 1/3 of the body length of Mandarin fish. If the specification of feeder fish is not uniform, it is necessary to use a fish sieve to sieve away the feeder fish with large specification.

⑵ water quality management:

① fish pond water quality must be maintained all year round? The water quality of the fish pond must be maintained all year round. The standard, pool water transparency to maintain about 30 centimeters. It is necessary to refill new water frequently, especially in the high-temperature phase June to September, every 5 to 7 days to add water, each time adding 15 to 20 centimeters of water. If the drug is used several times, it is necessary to change the water to prevent drug damage.

② Weather anomalies to immediately add water, and maintain the relative stability of the water level of the pond, to provide good environmental conditions for the growth of Mandarin fish. If the water is turbid, use alum 1 kg per mu or lime 5-7.5 kg of water and splash the whole pond.

③ Installation of oxygenator, to prevent the floating head of Mandarin fish from lack of oxygen, generally in sunny or less cloudy weather at noon to increase the oxygen, such as the weather is hot and muggy in the midnight to early morning boot.

④ Prepare some hydrogen peroxide (content of 30% or more) or oxygenating spirit, which can be used to rescue Mandarin fish when they float their heads. The use of hydrogen peroxide: 250 ml of hydrogen per acre, add 500 ml of water and add another 3-5 ml of 2% ferrous sulfate. See instructions for use of Oxygenating Spirit. Siniperca chuatsi fish body parasites

Siniperca chuatsi fish summer and fall management

summer and fall water temperature is high, Siniperca chuatsi fish feeding exuberant, rapid growth, but at the same time it is also the disease, floating head frequent season, summer and fall Siniperca chuatsi fish aquaculture management must grasp the following points.

First, put enough bait in the pond without exceeding the carrying capacity of the premise, try to put more bait fish. The amount of bait fish stocked is 4 to 5 times the amount of Mandarin fish, every 3 to 5 days to supplement the bait fish. At the same time, pay attention to observe the feeding situation of Mandarin fish, if the water surface of the fish pool is only a small splash of stars, Mandarin fish chasing bait fish issued by the sound of the water is small, the interval is long, indicating that the bait fish is sufficient; such as the Mandarin fish chasing bait fish to the upper layers of the water, splash, issued by the sound of the big and frequent, indicating that the bait fish has been insufficient; such as the sight of the Mandarin fish in groups at the edge of the pond chasing bait fish, indicating that the bait has basically eaten up, it should be timely to replenish the stocking. Bait fish can choose pangolin, grass carp, crucian carp, bighead carp, etc., to pangolin feeding the best results. The bait fish specification is generally 1/3 to 1/2 of the length of Mandarin fish, if the specification is not uniform, the fish sieve should be used to sieve out the bait fish with larger specification.

Second, water quality management Mandarin fish farming requires fresh water, high dissolved oxygen, transparency of more than 30 centimeters, the water quality to maintain long-term fat, live, tender, cool. Generally every 2 days ~ 3 days to change the water, each time the water change 15 cm ~ 30 cm, and keep the water body is slightly flowing state. The phenomenon of Mandarin fish spitting out bait fish is found to indicate that the water body has been lacking in oxygen, and water should be injected in time to increase oxygen to prevent floating head death. Sprinkle the pond with 25 kilograms of quicklime per mu every half month during the high temperature season to improve water quality and prevent diseases. If the water is turbid, 1kg of alum per mu can be used to sprinkle the whole pond. from July to September, according to the feeding, activities and weather conditions of Mandarin fish, start the oxygenator at the right time, 2 times a day, 2 hours during the daytime and 4 hours at night. If you find that Mandarin fish are seriously floating, immediately sprinkle hydrogen peroxide, calcium peroxide, and so on.

Third, disease control Siniperca chuatsi disease, prevention-oriented, focus on bait fish and water disinfection. Bait fish put with 3% of the salt water before disinfection, to prevent with insects, bacteria into the pool, July ~ September is the peak season of Siniperca chuatsi fish, the main diseases are rotavirus disease, fingerling disease, gill disease, etc., can be alternately splashed with copper sulfate, ferrous sulfate and other drugs to treat the treatment should be the first to kill the insect, after the bactericidal, internal and external combinations, and pay attention to the prohibition of trichlorfon and other organophosphorus insecticides.