Guide to Tilapia Raising

Comments

1. Mohiyud-din Ahammed says:

   October 3, 2009 at 7:08 pm

   I have learnt more information about telapia culture in floating cage on river and I also started the project in Bangladesh. But now I want to know the technology about poultry rearer on floating cage. So please send me the address, pictures if possible.

   Thanks
   Mohiyud-Din Ahammed
   from Bangladesh

   Reply
2. r. b. garcia says:

   September 12, 2009 at 4:07 am

   i contructed a 300 sq meter pond and watered by deepwell also. i stocked the pond last june with 6ooo all male tilapia fingerlings. as of this september 2009, most of the fish reached about 2 to 3 inches in length.i’m feeding them with commercially available fish food. i’m wondering if the fish has stunted growth. did i overstocked? please help. it’s supposed to be my pilot project and want to add two more ponds if this first one will become succesful. thank you very much

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   • J.P. Baldia says:

     September 12, 2009 at 12:19 pm

     Yes, Mr. Garcia. You overstocked. Your 300sq.m. pond can only hold a maximum of 1,500 fish until harvest. This is assuming that you have a 1 meter water depth and without aeration.

     Presuming that you have good quality feeds and fingerlings, the main reason why tilapia will not grow is low level of dissolved oxygen in the water. Keep in mind that oxygen is a function of metabolism and no matter how much feed you give your fish, they still will not grow.

     With overstocking, your fish will compete for the limited amount of oxygen in the water. Therefore it follows that when you provide aeration, you can stock more.

     Of course, the level of oxygen will also decrease if your water is “dirty”, meaning, it has high organic load. The solution for this is simply to change water.

     You will know that oxygen level is low in your system when your fish are always at the surface of the water, gasping for air.
     Good luck

     Reply
     • r. b. garcia says:

       September 12, 2009 at 2:45 pm

       Thanks for the info, J. P. Baldia. I think the obvious solution is to put an aerator or to decrease the number of fish in the pond to 1500. I wil opt to decrease the number of fish and release the others to the river nearby. But if I can secure an aerator, can it help or frequent changing of water will do? If you will not mind, I want to ask more specific questions about this topic since I am planning to make this a business when I retire from working abroad. My e- mail add: rayjo@emirates.net.ae
       Thank you again.

       Reply

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   June 19, 2009 at 10:45 am

   [...] pangasius is far more easy than growing tilapia and bangus. This freshwater fish can be cultured in fishponds, concrete fish tanks, fish cages and [...]

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