Problems to be noticed in rearing prawn

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Tail-tailed white-shrimp farming is one of the main pushes for fishery technology in Qidong City, Jiangsu Province. Shrimp are generally selected for sea-caught ridge-tailed white prawn. In recent years, many farmers have bred themselves to report oysters because of reduced resources.

Shrimp rearing shrimp is generally cultivated using unsatisfied shrimp of the previous year, and then reared for a period of time to develop into an average size of 2 grams and 4 grams of shrimp, or to use the sea as the parent On the 15th of that year, the first time we can hold eggs.

In the process of breeding shrimp, the author found that some farmers raised seedlings with low yields, low success rates, and were very susceptible to disease. Some of them died. The main reasons are as follows: 1. The breeders of shrimps are not allowed to use their methods, and some of them simply follow the practice of rearing white-tailed white prawn, rather than treating them differently depending on the situation. 2. Due to the high temperature and low stability of the shrimp breeding period, the ground temperature rises, there is bottom heat phenomenon, and it is easy to change the water and prone to lack of oxygen. These are places that are different from the breeding period, and are not easy to attract farmers' attention. 3. Many types of shrimp rearing households do not have aeration facilities and there are no reasonable standards for feeding. This is a key factor in reducing the success rate of breeding shrimps.

It is suggested that the breeding ponds should be equipped with aeration facilities in the mouth of the pond; the feeding should be controlled according to the climate change of the water temperature and be controlled in a timely manner; regular water quality testing, algae phase observation, and water diversion according to the situation should be adopted.

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