a total of 528 day-old ross 308 male broilers were used to study the effect of antibiotic, probiotic, prebiotic and organic acid on performance, cecal coliform load and internal organs’ weight. the chickens were placed into 6 groups with 4 replicates and 22 chickens per pen. six dietary treatments included: 1) negative control as basal diet without any antibiotic growth promoter and coccidiosta...

The efficacy of a microbial feed additive (Bactocell(®)) in countering intestinal inflammation in Atlantic salmon was examined in this study. Fish were fed either the additive-coated feed (probiotic) or feed without it (control). After an initial 3-week feeding, an inflammatory condition was induced by anally intubating all the fish with oxazolone. The fish were offered the feeds for 3 more wee...

The aim of this study was to compare the effects of three antibiotic alternatives with a control (Antibiotic-free) and an antibiotic diet on performance and gut morphology of broilers reared on litter. 600 day-old ROSS-308 chicks were assigned to 48 pens in a CRD design with 6 × 2 factorial arrangements, in which 2 levels of chick density (5 and 7.5 chicks/m2) and 6 experimental diets (control,...

The aim of this study was to compare the effects of three antibiotic alternatives with a control (Antibiotic-free) and an antibiotic diet on performance and gut morphology of broilers reared on litter. 600 day-old ROSS-308 chicks were assigned to 48 pens in a CRD design with 6 × 2 factorial arrangements, in which 2 levels of chick density (5 and 7.5 chicks/m2) and 6 experimental diets (control,...

the purpose of this study was to determine changes in the normal flora of the gastrointestinal tract and blood parameters of rainbow trout after taking probiotics and oregano extract. this study was completely randomized design with 5 treatments and 3 replicates each with 40 fry 22 g of the rainbow trout. treatments consisted of basal diet, florfenicol, 0.5%, 1% and of oregano extract, 2% bacto...

The production experiment was conducted on 48 fattener pigs fed complete diets supplemented with the antibiotic flavomycin (group C), the probiotic Bactocell® (Pedicoccus acidilactici, strain MA18/5M) at the amount of 0.01% in the first and second stage of fattening (group E1), and the prebiotic BIO-MOS® (Saccharomyces cerevisiae, strain 1026) at the amount of 0.1% in the first stage of fatteni...