Pêche et production animale

Abstrait

Effect of Fish Oil Substitution with Sunflower Oil in Diet of Juvenile Catla catla (Ham) on Growth Performance and Feed Utilization

Dalbir SP, Roopma G, Ritu K, Vaini G and Shivalika R

During the present investigation Catla catla fry (0.250 ± 0.008 g) were fed with five iso-nitrogenous (40%) and isolipidic (6%) diets in triplicate @ 5% of body weight, for a period of 60 days. Diet A1 (control)was without supplemented oil i.e., whereas diets A2-A5were supplemented with 3% fish oil (FO) and sunflower oil (SFO) at different proportions i.e. diet A2 with(100% FO), diet A3 (70% FO+30% SFO), diet A4 (50% FO+50% SFO) and diet A5 (70% SFO+30% FO). After the end of 60 days of feeding trail a significant difference (p<0.001) was observed in weight gain (WG), specific growth rate (SGR), feed conversion ratio (FCR), feed conversion efficiency (FCE ) and survival rate in oil supplemented groups as compared to control. The diet A4 shows the best result with 48.84% (WG), 0.193 (SGR) and 5.81 (FCR) 17.31 (FCE) and 96.81% survival rate. However, there was insignificant difference (p>0.01) in all the growth performance parameters between oil supplemented diets i.e. A2-A5. However, diet A1 (control) registered poorest performance i.e. 42.54% (WG), 0.271 (SGR), 7.75 (FCR), 12.88 (FCE) and 93.56% survival rate. The present result thus clearly revealed that sunflower oil could be partially replace the fish oil up to 50% in supplemented diet without any adverse effect on the growth performance of Catla catla fry, as it is less expensive and easily available.