Effects of sound on growth of organism.

Hello everyone:

           Today we will see about some of the interesting facts about sound. 

           Sound plays one of the important role in growth and activity of an organism. 

Sound affects growth of bacteria:

           There are different and different of bacteria species found around the earth. Most of them reacting to the sound waves. Sounds waves affects an organism by vibration. 

          

1. The intracellular activity of an bacteria is changed. 

2. The presence of ions such as calcium and potassium levels altered. 

          Some bacteria shows good growth and some shows poor growth. 

It is recorded that bacteria makes quorum sensing. For this process, calcium ions are important to regulate the process. 

The ATP ase activity, cellular activity are completely changed when expose to high sound.

Is sound affects vannamei? 

       Yes, but it is not greatly influenced in the growth of the organism. The activity and behaviour shows some changes when exposed to high frequency. The Total hemocytes counts increased when exposing to high sound frequency. 

Effects of sound on plants. 

       Some plants shows good growth and some plants shows slow growth while exposing to sound. 

       Sound have positive relationship with some plants and gives higher germination rate, higher growth and higher resistance. 

     It also changes the metabolic activity. 

     It changes the protein activity of the organism. Researchers told sometimes it influence the metabolism and disease resistance of an organism.

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Gut microbiome of vannamei - Interesting facts.

Hello everyone:

        Today we will see about some of the interesting facts about gut microbiome of vannamei. 

Aquaculture is an important growing sector. Penaeus vannamei is the commonly cultured species around the world. But farmers facing more challenges to achieve the profitable production. 

Various outer factors leads to failure of crop.. 

1. Misunderstandings of farmers. 

2. Unqualified technicians. 

3. Getting Influenced by other people. 

Gut microbiome:

      It plays an important role in the growth and survival of the animal. The colonisation of microorganisms in the gut is limited. There will be an heavy competition occurs for exclusions. 

      Gut microbiome can impact the growth of the organism by modifying the gut enzymatic activity. 

      Host deterministic effect will reduce the bacterial colonies in the gut. 

      Another important fact is, gut microbiota is distinct from the rearing water. 

Selection of probiotics:

        The gut health is maintained by the microbiota present in the gut. We have to maintain by application of prebiotics or probiotics or synbiotics to the host. 

        The mixed species also results in the dysbiosis of the gut ( irregular colonisation of microbiota).

       When the dysbiosis occurs then the harmful pathogens causes various disease to the host. 

        Selection of probiotics must be specific and indigenous. 

Selection of specific strain:

          The selection of different non indigenous probiotics will cause stochastic effect on the gut microbiota of the shrimp. 

         Those species can't able to proliferate well. Gut of the shrimp is very limited ( space and source of food). 

        Scientists observed that ,specific strains of probiotics will give positive effect on growth and survival of the animal. If the gut is occupied by the harmful pathogens then these specific starins will eliminate and recover the host gut. 

       We can maintain the gut health by application of prebiotics such as oligosaccharides and probiotics of specific strains. 

    Or we can maintain the gut microbiota by synbiotics supplementation. 

Maintanence of environment is an important factor. 

       The environment must be free from disease causing pathogens. The environment must present with the beneficial microorganisms. 

        Use of unnecessary prebiotics must be avoided. 

                  Thank you... 

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Useless to Useful - Pond organic matter...

Hello everyone:

      Today we will see about some of the important thing about organic matter in your shrimp pond. 

Question: Sir, my pond shows production of more foam in morning times. What can I do for this? 

 Answer : It is usual for earthern ponds when your DOC is crossed more than 50-60.Use activated probiotics. Don't use excess carbon source. 

       The foam formation is the common thing when the organic matters present in your pond. We can't control completely because our daily feed will be more than 40 kgs per acre for low stocking. So definitely foam will come. 

One solution...... 

         We can turn these particulate into effective nutrient called floc. When the organic matter present in your pond, At the same time bacterial colonization will occur ( both beneficial and harmful bacteria).. In this time we have to increase the beneficial bacteria when you found excess organic matter in your pond... 

Important criteria. 

        Beneficial bacteria activation and proliferation is very important, Before admit into the pond. 

        The selection of carbon sources also very important. 

         Molases considered as a primary carbon source than rice bran and jaggery. 

There are many steps to make floc in your pond. But you have to observe the condition of your pond. These floc has good nutritional profile and provides more proteins to the shrimp. 

For in depth detail and consultancy....pls feel free to Contact me.. 

P. Dhivagar BFSc, 

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Interesting and Useful facts about vannamei - Molting and New moon relation.

Hello everyone:

          Today we will see about some useful and interesting tips about vannamei. 

1. Nucleotide supplementation:

          Supplementation of nucleotides with feed gives good results on immunity. The shrimp immune system get boosted. These nucleotides are used to form structures. The nucleotides extracted from yeast cells are widely used in culture. It mainly helps to increase the immune response of the host. It fulfill the demands of nucleotides in the host. If a shrimp affected by any bacteria or virus, at that time it takes minimal time for an better immune response. 

2. Lymphoid organ of vannamei. 

           Lymphoid organ is an very important organ in vannamei. It majorly acting against foreign particles that enters into the body of the host. Bactericidal, phagocytosis are the major functions. Also functions against virus. 

           Shrimp forms various Spheroid cells with vacuolated structure. But these formed spheroid cells are eliminated from the shrimp body at certain intervals. When the foreign particles or virus enters into the body then it starts to form these type of cells.

          Some of the researches told, shrimp get eliminate this cells during molting time. But the exact answer is still unknown. 

3. Molting and New moon relation. 

          It is very interesting thing to read... 

😃 Really?. 

      ..... Yes😇. 

         Still there is doubt about molting in shrimp. Why shrimp gets molted during full moon, new moon time. What happens to that time? 

         Whatever shrimp have different sizes, we can observe the molting at full moon and new moon. ( at least 40-50% of the population get molted). 

Why it happens? 

           The true answer is still unknown.. But some of the relation between water and gravitational force give some idea about that. 

     Full moon , New moon produces highest high tides and lowest low tides. 

You get confused right? 

    

Pls follow in deep... 

           We all heard more myths about full moon and new moon times. Researches told there is an relation between lunar cycle and humans. During full moon and new moon, humans activity, mindset got changes and not stable. 

             Researches told, more babies born near to full moon and new moon days. How it happens? It happens only by gravitational force? Yes, it may be. 

           Shrimp needs dark place, shrimp needs hidden place for molting. The light intensity plays major role in molting and behaviour of the shrimp.  "Gravitational force" is the most of the persons choice. 

Once again read content 2.

         Researches find more speroid cells found before molting and immediately the speroid cells in lymphoid organ decreases after molting. 

       It denotes shrimp gets eliminate these type of cells after molting and also indicates chance for pathogen entry and foreign particles entry is high during those periods. 

               Thank you.... 

Contact for more info... 

P.Dhivagar BFSc, 

dhivagarfcri2000@gmail.com

Supplier of Bioactive Compounds - Yeast.

Hello everyone:

         Today we will see about interesting facts about the use of yeast in shrimp farming. 

Yeast:

       Yeast is a unicellular. It has various qualities of usage in shrimp farming. Yeast produces various bioactive compounds which are helpful for digestion, absorption, development of immunity, growth etc.. 

Different uasge by farmers:

        Nowadays, Farmers from Tamilnadu using yeast in different ways. Somebody using with probiotics, somebody using with prebiotics and probiotics.. 

Comparing to environmental use, yeast have good effect on shrimp when we using as a feed supplement. 

     

# Compounds from yeasts such as glucans, mannan oligosaccharides, cell wall, nucleotides have good effect on shrimp. 

      It also producing the various digestive enzymes used for digestion such as amylase chitinase, phytase, protease etc... 

 Glucans from yeasts increasing the shrimp immunity by increasing the number of circulating hemocytes. 

Yeast have any negative effects? 

          It don't have any negative effect on shrimp health and their environment. But some prokaryotic bacteria can able to transfer the plasmids and causes negative effect to the organism. Yeast don't have any negative effects. 

Some of important compounds such as vacuolar protease, serine, aspartyl metalloprotease also produced by yeast. 

Interesting fact!! 

       Yeast also helps to remove the toxic metabolites from the gut of the host. 

        Yeast increases the height of microvilli in gut. It increases the absorption area and leads to increase the feed intake. 

The compounds from the yeast also stimulates the other immunostinulants of the shrimp body. In general some yeast species present in the gut microflora. Various species of Candida, Debaryomyces, Saccharomyces can help to increase the survival, growth of the Shrimp. 

Important fact... 

         It provides best defence against vibrio species in host. We all know about lysozyme. It is an important one for developing innate immunity. Yeast also increase the lysozyme production and increase innate immunity of the host. 

       The nucleotides of the yeast fullfill the need of nucleotides required by immune system at the time of immune response. 

         These are the various uses of yeast as a feed supplement or as a feed additive. 

                          Thank you.. 

Contact for more info... 

P. Dhivagar BFSc, 

dhivagarfcri2000@gmail.com