Growth Performance of Clarias gariepinus on the Basis of Formulated Feed Supply

Abstract

Best diet of the fish is the sole of production of aquaculture. Growth performance of Clarias gariepinus on the basis of formulated feed supply was carried out from 7th March to 6th May, 2019 in the laboratory of P.G.Campus, Biratnagar in which 130 juveniles (each of 10±0.11 g.) of catfish were cultured in 13 aquaria feeding with treatment diets having crude protein level 35%, 40%, 45% and 50% for treatment and commercial diet for control. There are no significant differences between the water quality parameters and body weight gain (p>0.05) in all treatments. The highest body weight gain (7.31±0.11 g; 65.20%) and SGR (13.051±1.15 g) was observed in fish fed with T C (45% protein level). This value was lowered than value of control(C) i.e. 7.59±0 g; 69.88% and 13.55±0 g respectively. Feed conversion ratio (FCR) was best (13.28±1.89 g) in T D (50% protein level feed). Its value was larger (7.52±1.11 g) in T C than C (7.15±0 g). Mortality rate was highest in T C and C i.e. 30% and lowest in T A and T B i.e. 23.33%. Weight gain of the fish increased with increasing protein level in diet till crude protein level 45% then it was dropped at the diet with protein level 50%. The best weight gain was observed in 7th week having crude protein level 45%. The diet with protein level 45% is suggested for farmers concerning the fish (Clarias gariepinus) in the aquaculture.

Growth assessment of pure bred Clarias gariepinus (Burchell, 1822), Heterobranchus longiflis (Valenciennes, 1840), Heterobranchus bidorsalis (Geoffrey Saint Hillarie, 1809) and their Hybrids

“…This suggest that the crosses of H. bidorsalis male with C. gariepinus female provide a better growth performance (Used in this study) than H. bisorsalis female crossed with C. gariepinus female. The mean weight gain observed in this study for C. gariepinus was better than the values (3.99 -7.59 g) reported by Shrestha and Niraula [27] when the fish was fed diets containing different levels of crude protein for 56 days. This may be attributed to lower values of dissolved oxygen (3.34-3.65 mg/l) and temperature (21.07-22.40 o C) recorded by the authors when compared to the values in the present study.…”