Generally speaking, eating cultured shrimp is harmless to human body, but it depends on the types of drugs used in the breedin
Generally speaking, eating cultured shrimp is harmless to human body, but it depends on the types of drugs used in the breeding process and the treatment of shrimp before eating. At present, in the process of shrimp culture, the common drugs mainly include environmental modifiers such as matrix modifiers, oxygen mixtures and antidotes, nutrition and health-care drugs such as vitamins, minerals, amino acids and astaxanthin, and disinfection drugs such as chlorine dioxide, iodine and antibiotics, most of which are harmless to human body.
1. Is cultured shrimp harmful to human body?
1. Generally speaking, eating cultured shrimp is harmless to human body, but it depends on the type and dosage of drugs used by farmers in the process of breeding and whether people have properly treated the shrimp before eating it.
2. At present, in the process of shrimp culture, most farmers will use environmental modifiers such as matrix modifiers, probiotics, oxygen mixture, antidotes, nutrition and health care drugs such as vitamins, minerals, polysaccharides, traditional Chinese medicine, amino acids and astaxanthin, and disinfection drugs such as chlorine dioxide, iodine and antibiotics. Most of these drugs are safe to human body, and only too serious antibiotic residues will do harm to human health, but the metabolic cycle of shrimp is relatively fast, generally about 2 hours, and drugs do not exist in the digestive system.
3. When buying shrimps, try to choose live shrimps and soak them in fresh water or salt water for about 30 minutes before eating (the residual drugs in lobsters can be metabolized by changing water with different salinity).
4. Before eating or cooking, it is best to remove the shrimp line.
Second, what technology is needed to raise shrimp?
Take crayfish culture technology as an example. Details are as follows:
1, pond treatment
(1) The bottom of the pond should have a slight slope, and escape prevention facilities should be built around the pond.
(2) Before stocking, drain the water in the pond, then clean up the sundries at the bottom of the pond, and disinfect the pond with quicklime 100- 150kg per mu.
(3) About 3 days after disinfection, water enters. After 10, apply 300-500 kg of decomposed organic fertilizer per mu to cultivate plankton.
(4) Hidden objects such as bricks, bamboo tubes and stones are arranged at the bottom of the pond for lobsters to inhabit. At the same time, the area of the pond water surface is about one third of the water surface.
2. stockings
(1) Before stocking, put the container with shrimp fry into the pond, and stock it after the water temperature in the container is close to that in the pond.
(2) Stocking 2,000-3,000 shrimps per mu of pond, with specifications of 3-5cm.
Step 3 feed
(1) The lobster food can be selected from animal feeds such as fresh miscellaneous fish, snails, earthworms, internal organs of livestock, and plant feeds such as soybeans, bean cakes, bran and corn.
(2) In March, the daily feeding amount is 2-3% of the body weight. In April, the daily feeding amount is 4-5% of the body weight. After May, the daily feeding amount is 6-8% of the body weight.
(3) Feed it once every morning and evening, and the feeding amount at night accounts for about 70-80% of the feeding amount of the day.
(4) Adjust the daily feeding amount reasonably according to the eating situation of lobsters.
Step 4 manage
(1) The transparency of water body is controlled at about 30-40cm, the ph value of water body is controlled at 7-9, and the dissolved oxygen in water body is kept above 4g/L. ..
(2) In the high temperature season from June to August, fresh water is changed every 5-7 days, and the amount of water exchanged is about 20-30% of the pool water. At other times, change the water every 10- 15 days, and the amount of water changed each time is about one third.
(3) Every 15 days or so, use quicklime water 10- 15 kg per mu of pond to control diseases.