3 years ago

Effect of alkoxy glycerol on growth performance, immune response and disease resistance in Nile Tilapia (Oreochromis niloticus)

Preetham Elumalai, Parvathy Prakash, Mohamed Saiyad Musthafa, Hien Van Doan, Seyed Hossein Hoseinifar, Caterina Faggio

Publication date: Available online 8 January 2019

Source: Research in Veterinary Science

Author(s): Preetham Elumalai, Parvathy Prakash, Mohamed Saiyad Musthafa, Hien Van Doan, Seyed Hossein Hoseinifar, Caterina Faggio


Fish oil and their compounds derived from the same have immense applications in the improvement of health, brain development, enhancing immunity etc. This study aimed at the supplementation of such a compound alkoxy glycerol derived from shark liver oil in fish diet and thereby analyzing growth as well as immune parameters of Oreochromis niloticus. 400 fishes were distributed into 11 glass tanks, and then fishes were weighed before starting the experiment. (Average weight was found to be 5.3 ± 0.10 g). Feed was prepared using alkoxy glycerol in the doses like 5, 10, 15 g kg−1 Fishes were fed with the prepared diet for 30 days and growth parameters like specific growth rate (SGR), weight gain (WG), final weight (FW), and feed conversion ratio (FCR) were measured. On the 30th day, fishes were challenged with 0.1 ml of normal saline solution containing 107 CFUml−1 of Aeromonas hydrophila and disease resistance was monitored. After 30 days of post challenge observation, immunological and lipid peroxidation assays like alternative complement (ACH50), phagocytosis (PI), respiratory burst activities (RB), and serum lysozyme (SL) were performed.

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