Growth Performance, Feed Efficiency and Body Composition of Larvae H. longifilis Fed Different Beef Brain Meal Dietary Protein Levels

The effects of increasing beef brain dietary protein level on growth, nutrient utilization; and biochemical composition of larvae Heterobranchus longifilis were evaluated. Three diets in 25 %, 30 % and 35 % of crude beef brain protein were formulated, to fed triplicate groups of 50 larvae (initial weight 0.0035 g) per aquarium at ad libitum during 49 days. At the end of the experiment, the growth parameters such as final body weight (FBW), final body length (FBL), specific growth rate (SGR), body weight gain (BWG) increased with increasing dietary protein levels. Significant difference (p