Author(s)

M. M. Gaber, E. H. Labib, E. A. Omar, M. A. Zaki, A. M. Nour

1National Institute of Oceanography and Fisheries, Cairo, Egypt 2Departments of Animal and Fish Production, Faculty of Agriculture, Alexandria University, Saba Basha, Egypt 3Departments of Animal and Fish Production, Faculty of Agriculture, Alexandria University, El Shatby, Egypt.

A 3-month randomized factorial design 4 × 2 (four levels 0, 15, 30, and 45%) of wet Date (WD), two levels (0 and 0.03%) of Digestarom? (D) and three replicates. The trial was conducted in twenty four glass aquaria. Ten fingerlings of Nile tilapia were placed in each aquarium with an average weight 15.40±0.3 g fish. Fish were fed twice daily (six days a week) at a rate of 3% of body weight. The results revealed that, mean final weight (g/fish), SGR (%/day), feed conversion ratio, PPV and PER, were significantly (p ≤ 0.05) affected by the levels of WD and level of D. And the best diet achieved which containing 30% WD supplemented with 0.03% D. From the above results and the economic information of these studies it can be concluded that, diet containing 30% of WD with 0.03% D exhibited the highest net profit and would seem to be the most desirable level of WD and D in the system studied.

Nile Tilapia; Wet Date; Digestarom®

Gaber, M. , Labib, E. , Omar, E. , Zaki, M. and Nour, A. (2014) Effect of Partially Replacing Corn Meal by Wet Date on Growth Performance in Nile Tilapia (Oreochromis niloticus) Fingerlings, Diets Supplemented with Digestarom®. Journal of Geoscience and Environment Protection, 2, 60-67. doi: 10.4236/gep.2014.22010.