Info about aquaculture. Spending time restless

Hello everyone,      Today we will see about importance of nitrate and silicates for the growth of diatoms.  Diatoms are mostly found in saline water. This diatoms plays important role in food web as a primary producers.  These diatoms also found an important food source for culture species in aquaculture.  ......................  Source of nitrate:    During shrimp farming,we can observe there will be a shifting in plankton biomass from day to day. But the most important species occupied in later stage is bluegreen algae.     This bluegreen algae is controlled by various method,  lowering pH of the pond by increasing bacterial population.      Trapping availability of phosphorus in bottom soil by applying various chemicals.     In this, nitrate is an source which is naturally available in pond using high nitritious feed for culture.  Source of silicates:      Source of silicate is depleted in natural waters. It is most abundantly present in soil and absorbed by plants and

Hello everyone :      Today we will see about the use of aluminium phosphide on shrimp farming.  Had you heard about that?       During prepreparation for shrimp pond, some farmers using aluminium phosphide tablets during wet condition.  Yes, it is a insecticide, rodenticide.  It causes acute poisoning to the insects and other species.  We will see the reaction of aluminium phosphide in detail....       When there is a moisture condition, phosphide reacts with moisture air and forms phosphine gas. It inhibits cytochrome oxidase and affects cellular respiration and causes oxidative stress.     It leads to sudden death of the organism.    This phosphine gas kills insects and pests. It can also kills aerobic organism.     This phosphine gas enters into the gastrointestinal tract and causes poisoning.    This phosphine gas attacks insects through respiration.    It causes lipid peroxidation and leads to damage of membrane.     It can change the ionic balance of the organism an

Hello everyone:       Today we will see about the importance of post larvae in success of shrimp farming.  Success of shrimp farming depends on various factors. The most important factor is quality of post larvae.  Different stress test, visual test, microbiological test to be done before stocking of post larvae.  ...... Join in my weekly online session about shrimp farming. For registration pls msg me in the below mentioned number +91 9384346193........  Visual test:   1.We have to observe the movement and activity of the post larvae in a small beaker or trough.   2. Observe for reduction in swimming activity.     3. Stirr the water and observe for the activity of the post larvae whether it is moving against water current or moving to the centre.     4. Ask to the technicians about batch and serials of test done during condition and breeding time.     5. Ask them about weight of brooder and it's quality.     6. Ask for the results of PCR tested diet ( diet given during breeding)..