The blackfish, also known as blackfish, raw fish, snakehead fish, talent fish, etc., belongs to the perch-shaped order, snakehead family. So, what is the culture technology of blackfish?
I. Adult fish farming
1, fish seed placement: February 10 per mu to put the specification of 4-5 tails per kilogram of blackfish species 4500 tails. 15 days before stocking, each mu with lime 80-100 kilograms of dry method to clear the pond. At the same time, 80 tilapia with specification of 200 grams/tail per mu were set up to breed seedlings as feed for blackfish. Before the fish seed in the pond with 5% salt solution immersion 10 minutes.
2, strengthen feeding: advocate the early start of food, April-June intensive feeding. Mainly feed fresh wild fish and shrimp, animal scraps. Feeding according to the weather, water temperature, fish activity to determine the amount of feeding 2 times a day, 9-10 am, 4-5 pm each feeding 1 time, the daily feeding in the pool of fish weight 2-10%, each time to feed 8 into full.
3, control water quality: regularly refill new water, maintain pool water transparency of 30 centimeters. High-temperature season every 3-5 days to add 15-20 centimeters of water, other times every 10-15 days to add water once. It is not convenient to add or change water, timely sprinkling EM original dew, sea treasure to remove ammonia, hydrogen sulfide and other toxic substances in the water, stabilize the pH value of the water body; regular application of quicklime, per mu of water surface 1 m water depth with 10-15 kg.
4, disease control: the main prevention and treatment of ulcerative disease, hepatobiliary enlargement disease. mid-April began to apply quicklime every half-month, internal enrofloxacin (content of 5%, 200 grams per 100 kilograms of feed fish medicine), florfenicol (content and dosage of the same enrofloxacin), Allicin Powder (content of 10%, per 100 kilograms of feed fish with 100 grams of medicine), etc., choose a kind of, with a 3-5 days. 5 days. Or use chlorine dioxide, bromochlorohydantoin, dibromohydantoin, etc. regularly sprinkle the whole pool to prevent.
Second, fish species cultivation
1, summer flowers put: Note: First, thoroughly clear the pond; Second, careful operation, to prevent fish injury; Third, the pond according to the ratio of 2:3:5 with a mesh partitioned into three small pools, in order to be divided into pools later on, the first will be the summer flowers put in the largest pool. July 20 per mu put specifications for the blackfish 6 cm summer flowers about 12000 tails. The first is to put the summer flowers in the biggest pool.
2, feeding management: domestication 10 days, so that the fish to develop a regular, regular feeding habits. In the early stage of feeding minced fish 4 times a day, later gradually changed to 2 times a day feeding (direct feeding of fresh wild miscellaneous fish and shrimp), evening light to induce insects, supplemental feed.
3, water quality control: the same method as adult fish farming.
4, fish disease control: the main prevention and treatment of parasitic diseases such as rotifers, tongue cup worms, small melon worms. Treatment with formalin (10-30 ml per cubic meter of water, when the condition is serious every other day and then 1 time), methylene blue (2-4 grams per cubic meter of water, when the condition is serious, even 2 times), copper sulfate (0.6 grams per cubic meter of water), Umarin (0.6 ml per cubic meter of water), add water to the whole pool sprinkler, the above method of any one kind.
5, hierarchical rearing: mid-August screening of seedlings, the larger size and smaller size of the blackfish fry were placed in the other two small pools to raise. 20 December from the catch.
Nutritional value of blackfish
The flavor is delicious and very nutritious, eating blackfish also has the effect of anti-inflammatory to the wound.
Cooking methods are: blackfish pancakes, blackfish rolls, blackfish in soup, blackfish, blackfish in soy sauce, blackfish soup with vinegar and peppers, emerald fish in rice soup, shredded red fish, blackfish with pickled vegetables, blackfish, dry roasted blackfish, blackfish, steaming blackfish, braised blackfish, stewed blackfish, blackfish simmered with garlic and so on.
General restaurant pickled fish rarely do with blackfish, most of the grass carp (mixed) to do, the price is cheaper than the blackfish, the market is not too easy to buy wild blackfish, domesticated blackfish slow reaction, nutritional value than the wild low, we buy, look at the blackfish spirit, texture and other comprehensive judgment to examine whether the wild.
1. Blackfish meat contains protein, fat, 18 kinds of amino acids, etc., but also contains essential calcium, phosphorus, iron and a variety of vitamins.
2. Suitable for weak body, hypoproteinemia, spleen and stomach qi deficiency, malnutrition, anemia, people eat, Guangxi area folk often regard the blackfish as a precious tonic, used to promote lactation, tonic blood;
3. Blackfish has the effect of eliminating wind and treating chancre, tonifying the spleen and qi, and promoting drainage and swelling, so the three northern areas are often women in labor, rheumatism, pediatric chancre for snakehead fish to eat, as a complementary food Therefore, in the three northern regions, people with maternal rheumatism and pediatric noma often look for snakehead fish to eat as an auxiliary food therapy.
4. The vitality index of blackfish is 0, but the disease prevention index is 6.41.
Note:
The general population can be eaten, and those who have sores should not eat it, as it will make people scar white.
Some people will be allergic to blackfish, after eating the symptoms are usually diarrhea, vomiting, skin rash, accompanied by back pain and other symptoms. It does not cause any discomfort when it is first eaten, but tends to flare up 5-6 hours after consumption, so children, the elderly and other people with poor resistance should be careful.
If allergic symptoms, you can take anti-allergy drugs to relieve, usually within 24 hours will be relieved; if the symptoms are more serious, please go to the hospital, follow the doctor's advice.