Effects of feeding frequency on growth performance and digestive enzyme activity of sex-reversed Nile tilapia, Oreochromis niloticus (Linnaeus, 1758)

• DOI: 10.1016/j.anres.2017.04.005
• Publication Date: 2017-10-16T07:45:57Z
• Authors: Karun Thongprajukaew; Satit Kovitvadhi; Uthaiwan Kovitvadhi; Pichanpop Preprame
• Keywords: Nile tilapia; Digestive enzyme; Digestion

The effects were investigated of different feeding frequencies—one meal at 0600 h, two meals (at either h and 1200 or 1800 h) three daily h)—on the growth performance, digestive enzyme activity, muscle quality carcass composition sex-reversed fingerlings Nile tilapia, Oreochromis niloticus (Linnaeus, 1758), in a recirculating aquaculture system over 3 mth period. experiment involved four replicates following completely randomized design with 30 fish per replication. performance fed twice times similar (p > 0.05) higher than for other treatments. There no significant differences among feed conversion ratios all treatment groups specific activities enzyme, amylase, lipase, total proteases, trypsin to chymotrypsin amylase frequencies. was decrease activity less often compared three-meals-daily group. not affected by frequencies, except RNA. These results suggested superior capacity tilapias (0600 which may be practical use management tilapia farming.