Abstract
A 3 X 2 factorial design of three dietary protein levels (25, 30 and 35%) and two levels of energy (18 and 20 MJ/kg) in three replications was conducted to investigate the proper dietary protein and energy levels for the growth of hybrid red tilapia, Oreochromis nilotics X Oreochromis mosambicus. Eighteen net cages (100 X 40 X 100 cm, L X W X H) werestocked with 10 fry of fish weighing 0.4 g/fish and fed to 16-weeks. No significantly differences (P>0.05) in final body weight, gain and specific growth rate were observed among fish fed diet containing different energy levels. However, at the dietary protein level of 25 and 30%, growth performance parameters were improved as dietary energy level increased from 18 to 20 MJ/kg. The improvement of growth, feed conversion, nutrient efficiency utilization were achieved with the diet containing 30% protein and 20 MJ/kg diet corresponding to P/E ratio of 15 g/kJ. Moisture and lipid contents were affected by dietary protein levels not by energy levels. Fish protein content tended to increase as protein levelincreased in the tested diets.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
