Abstract
Length-weight relationships of three major carps viz. Calla calla, Labeo rohita and Ci"hilla mrigala, in ponds treated differently with inorganic, organic fertilizers and artilicial feed, followed the cube law, indicating an isometric pattern of growth during the year-round study period. The condition factor varied with size and season. The effect of treatment on the coefficient of condition was non-significant. However, the weight of all the three fish species increased slightly more than the cube of the length except for Cirmina mrigala under cow-dung and artificial feed treatments. The condition factor of fish in relation to size appeared to be influenced by feeding rhythm of the fish with age.
