New PDF release: Advances in shrimp aquaculture management

By Sascha W. Felix

ISBN-10: 9383048964

ISBN-13: 9789383048960

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Extra info for Advances in shrimp aquaculture management

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For example, a one hectare pond has a surface area of 10,000 m2. 6 m = 6,000 m3. One ppm is equal to 1 gram per m3 of water. 95 g, thus: The quantity of phosphorus to be added is found in the same manner. 7 —— = 27. 1kg. 9 kg. 6 per cent Ammonium sulfate–(NH4)2 SO4: 21 per cent Ammonium chloride–NH4 Cl: 25 per cent Ammonium nitrate–NH4 NO3: 37 per cent Calcium nitrate–Ca (NO3)2: 17 per cent The percentage of phosphorus (P) in superphosphate fertilizers are: Double super phosphate–Ca (H2 PO4): 26 per cent Triple super phosphate–P2 O5: 39 per cent Many fertilizers contain more than one primary nutrient.

The second method is to keep the water level in a pond low for the initial two months provided temperature do not raise drastically and then raising the water level sufficiently to encourage the growth of other types of algae. B. Identifying Shrimp Larvae Characteristics which are used to distinguish adult penaeids can also be used to identify their post larvae. In penaeid shrimps, the first three pairs of walking legs have chelae (pinchers) and the first abdominal segment overlaps the second. However these characteristics can be identified using a microscope in post-larvae.

However, it is difficult to conclude as the results are highly variable and do not always allows to draw a clear conclusion. Feed Formulation, Processing and Quality Control Manufacturing a feed for shrimp involves several steps and all these steps have a defined effect on the quality and performance of the final product, that is feed. We can classify these factors as follows: (i) selection of raw materials,(ii) formulation and (iii) processing. When the production process is done according to the basic rules, it will not significantly affect the quality of the diet.

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Advances in shrimp aquaculture management by Sascha W. Felix


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