The effects of antibiotic, probiotic, and prebiotic as dietary feed additives on carcass composition as well as Salmonella counts and its serotypes in droppings and intestine of broiler chickens on days 1, 28, and 56 of experiment were investigated. Dietary treatments were control diet (basal diet without additives), OXYT diet (basal diet with 600 ppm of the antibiotic oxytetracycline), GRO-UP ...

BACKGROUND Mannans are one of the key polymers in hemicellulose, a major component of lignocellulose. The Mannan endo-1,4-beta-mannosidase or 1,4-beta-D-mannanase (EC 3.2.1.78), commonly named beta-mannanase, is an enzyme that can catalyze random hydrolysis of beta-1,4-mannosidic linkages in the main chain of mannans, glucomannans and galactomannans. The enzyme has found a number of application...

Bone mineralization is considered an essential source of minerals for metabolic needs that provide strength and hardness to the bone tissues in birds its development can be enhanced by use dietary supplements. The present study was executed evaluate influence prebiotic, probiotic antibiotic on morphometric aspects tibia broilers. One-hundred sixty-one-day-old broiler chick were divided randomly...

Alphamune, a yeast extract antibiotic alternative, has been shown to stimulate the immune system, increase BW in pigs, and reduce Salmonella colonization in chickens. The influence of Alphamune on gastrointestinal tract development has not been reported. Two trials were conducted to evaluate the effects of Alphamune on gut maturation of 7- and 21-d-old turkey poults. Poults were fed a standard ...

Penicillic acid (PA) is α, β-unsaturated conjugated lactone produced by Penicillium and Aspergillus species occurs in feed and foodstuffs. Mannan oligosaccharide (MOS) present in the cell wall of S. cerevisiae, was found to have beneficial effects in poultry against mycotoxicosis. To find out the alleviative effect of MOS against PA toxicity in broiler chickens. Feeding of broiler chickens with...

A germ-free (GF) chicken model was used to test 2 hypotheses: 1. microbial colonization of the gastrointestinal tract (GIT) influences mucin gene expression and mucin types; and 2. mannan oligosaccharide (MOS) supplementation affects GIT cells directly, without bacteria mediation, compared with bacterial-mediated effect (i.e., indirectly). Gnotobiotic isolators were used: 1) GF, 2) with a singl...