Info about aquaculture. Spending time restless

Hello everyone:         Today we will see about importance of chelated minerals in low saline water.          P.vannamei  is an excellent osmoregulators. They are suitable for culture from 0.5 to 40 ppt. But we have to do some additional supplementation in low saline water for better growth and survival.           Requirements for low saline water:         Whatever the shrimp are excellent osmoregulators, there are certain drawbacks found at low saline. Sodium chloride, calcium, magnesium, potassium are the important minerals which must required at certain concentations.        But these minerals are not found in optimum range in low saline water.  Potassium :         If you are doing culture at low saline water, you must check the potassium level. It is an important mineral for growth and survival. It plays major role in sh...

Hello everyone:       Today we will see about importance of lysozyme enzyme for antibacterial activities in P. vannamei.  Major problem:        Majority of shrimp farmers facing white feces syndrome in earlier stage of culture. This will leads to severe economic loss. The exact reason was unknown but vibrio is the important pathogen which associated with majority of infection.  Ways to reduce white feces syndrome.        Different ways followed to reduce or postpone the occurance of white feces.  # Avoid overfeeding.  # Maintanence of beneficial bacterial population.  # Seed selection.  # # # Maintanence of nursery system.  # Avoid the accumulation of organic load.  # Maintain gut health from initial days of culture.  These are some of the ways for treating white feces.  Lysozyme effect:         Lysozyme plays major role in antibacterial activity in shrimp . C ty...

Hello everyone:         Today we will see about importance of alkalinity for nitrification process in shrimp pond.  Did you know?         pH and alkalinity plays major role in nitrification process.  How did the wastes are converted in shrimp pond?         All are know that we are using high protein feed in pond with high stocking density. If you feed 50 kgs per day means then you can imagine how much nitrogenous wastes accumulate in your pond.        They are mainly converted by nitrification process.  Heterotrophic or autotrophic:       In our culture system, we have to maintain stabilized heterotrophic colonies for better pond bottom management.        We are using heterotrophic and autotrophic bacteria for pond management.  What they are doing?          They are mainly involved in nitrification process. They are con...