By Sascha W. Felix
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Extra resources for Advances in shrimp aquaculture management
The same would also apply for husbandry, handling, feeding procedures, environmental conditions etc. Shrimp kept in water that is insufficiently oxygenated and containing high metabolite levels will obviously be affected and eventually die due to exposure to unfavourable conditions. Reviewing all possible imbalances in feed formulation, it would be better to review the nutrition knowledge in its totality. Therefore to formulate a balanced feed, its essential to have a closer look at the effect of ingredient quality or the toxicity of special additives.
Hence, it is necessary to apply fertilizers at different rates/levels at different times of the year in shrimp ponds. The best way to develop a suitable method for fertilizing pond water is to apply a moderate amount of fertilizer and observe its effect on the phytoplankton growth. Subsequently depending on the performance, the rate of application is to be adopted or determined. To assess the density of plankton developing in the pond, a ‘ secchi disc ‘ can be used. When the secchi disc reading is about 30 cm, the phytoplankton density would be good.
M) Tolerates high stocking densities in grow outs and raceway ponds. (n) Individual weight as high as 30 g have been achieved in Indonesia in growout ponds, adopting unique culture techniques. Disadvantages (a) They do not generally grow to a large size. (b) Susceptible for Taura Syndrome Virus (TSV) infection. Chapter 3 Water Quality Management The emphasis on water quality standards for shrimp aquaculture is much more than the other farming systems. Shrimps are considered to be more sensitive to abrupt changes in water quality parameters and hence utmost care needs to be exercised to maintain the water quality in shrimp farms.
Advances in shrimp aquaculture management by Sascha W. Felix
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