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Update: 27-11-2015 14:11:21 + GMT7There are people for white shrimp (ttct) like a weak girl, with characteristics quite "kinky", however, if capture the strengths and weaknesses of this object will bring great success.
Ttct capable of high density culture, productivity and efficiency. However, shrimp farming especially at risk due to natural disasters and epidemics, in addition to the selection of service and compliance with the seasonal calendar, farmers necessarily strict implementation of all technical issues.
In the opinion of many experts in the industry, whether they are objects ttct new culture and have more features for the pros Vietnam as short culture period, high vigor, disease resistance, good ... however, farmers are not subjective. Because as time past, many farmers in applying subjective techniques, livestock density is too thick (over 100 individuals / m2) shrimp led to slow growth, feed consumption, low survival rates lead to loss palsy. Together, when buying seeds should look to the production and business establishments prestige, avoid floating seed of unknown origin, easy to make farming failed. Together again, not a massive drop in shrimp at a time, to avoid creating pressure to ease the supply of seed seed prices too high ...
At the same time, should not be abused and the expectation of an immediate effect of certain chemicals or drugs environmental treatment, prevention and treatment of certain diseases in the breeding process, which must be combined with detoxifying, weight using environmental indicators such as pH, dissolved oxygen ... to limit the spread and recurrence of the disease. Specifically, in the process of adoption should use periodic biological preparations to manage the environment better and more stable end products ensure clean.
Besides, farmers should also pay attention to stocking density, to ensure conformity with the level of infrastructure investment, the ability to care and experience. Lessons in Thailand showed that over the years in high-density shrimp made with bottle bottoms, poor nutrition, algae does not grow, the environment polluted ponds serious disease leading to morbidity, cause major damage to the shrimp industry. To overcome, the farmers of this country had to apply measures to suspend feed a certain time, at the same time, reducing stocking density.
In my experience, Mr. Vu Van Duc, farmers ttct since 2006 in Nghe An: Should stocking density of less than 80 individuals / m2, after 2 months of culture, when shrimp reach commercial size (though still small) proceed trim, while the rest continue farming combined revenues gradually trimmed to reduce density, can last up to 4 months culture period, reaching the lower end of the shrimp size 40 / kg, the price will be much higher. Moreover, this approach is very effective for those without great investment possibilities.
Also, it should apply general preventive measures right from the selection of seed, pond care process ... to strictly minimize the risk of new epidemics. Because shrimp farming, disease prevention is particularly important, moreover, if the shrimp have been infected then treated shrimp also grow slowly, resulting in lower feed efficiency, even at a loss, at the same time, avoid some diseases Dangerous drugs they do not have mass mortalities. And it is important to have close links with the community to raise the collective consciousness and avoid "the lights that shine one house."
According to Nguyen Van Khoi, deputy director of DARD Soc Trang, raising ttct will definitely cause environmental pollution by raising service, high density, using food intake big ... On the other hand, development ttct widespread will lead to difficulties in seed quality, environmental management animal product output ...
By Linh Anh, Vietnam seafood Journal