Growth Performance of Carps Cultured Under Different Experimental Conditions at Akividu, West Godavari District, Andhra Pradesh

Abstract

The objective of the present study is to assess the influence of different fertilizers, supplementary feed and probiotics on growth performance of major carps Catla (Catla catla), Rohu (Labeo rohita), Mrigala (Cirrhinus mrigala) and Grass carp (Ctenopharyngodon idella) cultured under different treatments for a period of one year from August, 2014 to July 2015 at Akividu, West Godavari District, Andhra Pradesh, India. Four experimental ponds i.e. Control (C), Treatment-1 (T1), Treatment-2 (T2) and Treatment-3 (T3) were selected for this study. Among the four treatments, maximum average body weight of carps was recorded in T3. Among the four fish species, Catla showed the maximum average body weight (1313.4g) in treatment pond-3. The highest specific growth rate was observed in treatment-3. Overall the highest survival rate of four carps recorded in T3. The FCR varied from 1:2.70 to 1:3.28 in T2 and T3. The gross yield recorded as 3485.97, 4456.44, 6133.56 and 7311.98 kg/ha in Control, T1, T2 and T3 respectively. The physical and chemical characteristics of pond water remained within the favorable limits during culture. The lowest biomass of plankton (51.4 to 96.8mg/l) recorded in C, while the maximum plankton biomass (96.4 to 145.8 mg/l) recorded in T3.