This research aims to study the changes of certain chemical properties of soil, sediment and ground study, the rate of growth of Tilapia that have different pet. In ban Muang tam in phayao by soil sediment samples from ponds, fish farmers. 3 ponds include ponds, ranging from kindergarten without moving the pond boanuban pond and the next stage of kindergarten. The study found that farming without moving the pond boanuban pond and the next stage of kindergarten. PH value of the soil with sludge 6.18-water content in soil sludge 7.23 28.6 31.1%-0.9-1.1% organic matter, nitrogen and phosphorus, 0.02 0.04%-2.4-3.4 mg/kg. The quality of soil sediment has changed during a feast, but not significantly different, and there is a value in the range that is appropriate to the life of the fish. Yields of Tilapia in ponds without Pond Pond Pond and Government approval following the kindergarten stage, which is equal to 2, 425 kg/Rai 1.636 kg/Rai and 735 kilograms/Rai respectively section conversion rate equals 1.9, 2.5 and 1.3, respectively. From the results of studies concludes that the quality improvement in all three patterns are also in standard class and is not harmful to fish and fed by bringing fish through kindergarten in boanuban and then continue their recent harvest yield highest and lowest feed conversion.
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