| effects of the antibiotic growth promoters flavomycin and florfenicol on the autochthonous intestinal microbiota of hybrid tilapia (oreochromis niloticus ♀ × o. aureus ♂). | the 16s rdna pcr-dgge and rpob quantitative pcr (rq-pcr) techniques were used to evaluate the effects of dietary flavomycin and florfenicol on the autochthonous intestinal microbiota of hybrid tilapia. the fish were fed four diets: control, dietary flavomycin, florfenicol and their combination. after 8 weeks of feeding, 6 fish from each cage were randomly chosen for the analysis. the total number of intestinal bacteria was determined by rq-pcr. the results showed that dietary antibiotics signifi ... | 2010 | 20844867 |