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P.Dhivagar BFSc,

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Popular Posts

Minerals nutrition in shrimp - Important facts.

Hello all!! Hope you are doing well. This is Dhivagar and today we are going to see the overview on mineral nutrition in Penaeus vannamei. Why it's needed? Intensification is changing the scenario and minerals supplementation is must needed one. When you are doing culture in extensive system, there is no need for minerals supplementation, Hence Intensification changing the scenario in aquaculture. What is essential? Statement from Frieden - An element is considered essential when a deficient intake produces an impairment of function and when restoration of physiological levels of the element prevents or releives the deficiency. Minerals requirements of aquatic animals are depends on the environment in which they live. Penaeid shrimp are euryhaline species which can tolerate wide range of salinity. Research states, There is no difference in growth and survival when Penaeus vannamei reared in low to higher salinity. But, the only matter is ...

Raceway series; Introduction and overview of Raceway aquaculture -1

Hello everyone, Today, we see the importance of Raceway aquaculture system. A successful system for fish (specific to certain species). It is an underrated system and need more research and demonstration for warm water species too. 'Intensification' is the key criteria need to increase production per unit area in aquaculture. To achieve higher production, the system must be improved in terms of efficiency. Top factors need to be considered for designing system, 1. Carrying capacity 2. Water quality and water availability 3. Species 4. Feed 5. Market availability In general, Raceway aquaculture system works based on the input of water flow. It is clear that, production is highly depend on the water input and flow. The flowing water effectively removes all the metabolic wastes from the tank and discharge on the other end. These systems built by different sizes and dimesions. The most common design is rectangle. The length of the system must not b...

Better clarification about pH and Alkalinity in shrimp pond. Water quality series -3

Hello everyone: Most of us confused between pH and alkalinity in the pond ecosystem. If there is low concentration of pH and alkalinity means we can increase but if there is high pH and alkalinity means it is some difficult to reduce . pH and Alkalinity are related but different. pH and Alkalinity: If you have shrimp pond then you definitely know the variance of pH in the water. You want to know means , you can check 4 to 5 times in a day. you must saw the pH fluctuations. Yes, pH is very important factor determines the shrimp culture. based on the level of pH you can tell , what happening in your shrimp pond. Fluctuations of pH is mainly determined by amount of carbon dioxide in your pond water. Other factors like soil pH, soil deposits like calcium carbonate, planktons density also determines the changes of pH in your water. pH : I am also tell the same me...

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