عنوان مقاله [English]
This research was aimed to compare some factors including dissolved oxygen, final growth rate and final yield of trout fishes in continuous fish farm. 30 ponds were allocated for this work and the comparison has been done for 10 similar ponds at the upper, middle and lower parts of this fish farm. After 10 months culture period, the dissolved oxygen showed a significant difference in different parts of fish farm. But the final growth rate and final yield of fishes under different ponds at upper, middle and lower parts did not revealed a significant difference. Also, the Pearson's correlation coefficient (r) showed an insignificant relation between the amount of dissolved oxygen and final growth and yield of fishes in all ponds.