Antibiotics are one of the most common groups used as feed additives in the frame of growth promoter. Several antibiotics have been in use as growth promoters in fish farms ever since. Sanchez-Martinez et al. (2008) studied the effect of supplementing channel cat fish (Ictalurus punctatus) feeds with
oxytetracycline. Treated fish exhibit a significant increase in weight gain suggesting a growth promotion action of this antibiotic agent.
in use as growth promoters in fish farms