2. Improved varieties are the key to high yield. Choose good crab seedlings, first soak them in the pool for a few minutes, repeat the operation several times, observe the adaptability of crabs to water quality, and put them in when there are no adverse reactions.
3, daily feeding management, disable those feeds that have been stored for a long time and deteriorated. At present, it is still necessary to give priority to meat feed, and use some nutritious vegetarian food in moderation, especially plant feed, to ensure good water quality in the pond. The amount of materials used should depend on the change of climate and temperature.
4. Remove the germs and bacteria in the pond, and create a good culture environment for the healthy culture of river crabs. Disinfection management of ponds should be done well before and after breeding. When young crabs enter tang qian, they should be disinfected in advance, and the mud in the pond should be cleaned in time in winter. In the process of aquaculture management, the disinfectant selected should be low in toxicity and quick in volatility to avoid environmental damage caused by disinfection.
Extended data:
Precautions for eating crabs are as follows:
1, which may cause diarrhea. Traditional Chinese medicine believes that crabs are cold and salty, and people with spleen and stomach deficiency are prone to abdominal pain, diarrhea or indigestion after eating. According to modern medicine, crabs are high in protein and difficult to digest. Solution: One capsule at a time, with warm mature vinegar, Jiang Mo and perilla; People with gastrointestinal diseases are not recommended to eat, which may aggravate the condition.
2, may lead to gout. Crabs contain purine and glycine, which will produce too much uric acid in the blood. People with high uric acid may induce gout.
Don't drink tea while eating crabs. Tea will dilute gastric juice, which has bactericidal effect and can kill bacteria carried by crabs. The content of tannic acid in tea is very high. Tannic acid and protein in crab meat can produce tannic acid protein, which is more difficult to digest and may lead to vomiting, abdominal pain, diarrhea and other symptoms.
4. Crabs and persimmons are grams. Because crabs and persimmons belong to the same season, the probability of eating them at the same time is relatively high. Persimmons contain the same tannic acid as tea, and the symptoms after eating are the same as tea. Eating them together is just indigestion, not poisoning.
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