The effect of utilization of tomato pomace in diets on growth performance and digestibility of Nile Tilapia (Oreochromis niloticus)

Jitra Simawan, Patcharee Mongkolvai and Kosit Sriphuthorn

ABSTRACT: The aim of this experiment was to the study the effect of utilization of tomato pomace in diets on growth performance and digestibility efficient of Nile tilapia. Dietary treatments were randomized assign according to a completely randomized design (CRD) in 5 experimental treatments and each treatments were 3 replications. The diets contained tomato pomace at 0, 7, 14, 21 and 28 % of dietary treatment. The initial average weight of Nile tilapia was 70-80 g and fish were stocked in net cages and contained 30 fish/net cages (1x1x1.5 m.). Experimental fish were fed 5-7 % BW and the experiments were done for 3 month. The results showed that of mixed of tomato pomace at 0-28 % of dietary treatment no negative effected on growth rate, efficiency of feed utilization and apparent digestibility of dry meter and crude protein (P>0.05). However, the apparent digestibility of crude lipid was significantly increased (P<0.05), the used of 28 % of tomato pomace was the highest (85.91 %). In conclusion, tomato pomace could be used as protein source in diets of Nile tilapia up to 28 % and were lowest cost (21.23 Baht/kg), and the cost of every compositions of tomato pomace were cheaper than control group (5.25 Baht/kg.).

Keywords: Tomato pomace, Growth performance, Digestible efficiency, Nile tilapia

Source : https://ag2.kku.ac.th/kaj/PDF.cfm?filename=P053%20Fis13.pdf&id=2327&keeptrack=1