Abstract— Ent55 is produced by poultry strain Enterococcus faecium EF55. It is substance which can be allotted to Class II enterocins; thermo-stable, small peptide. Because producer strain has shown beneficial effect in poultry and broiler rabbits as well, we decided to apply Ent55 in broiler rabbit husbandry. Ent55 showed antimicrobial activity in broiler rabbits by reduction of staphylococci, Clostridiae, pseudomonads and coliforms. Its beneficial effect was demonstrated by stimulation of phagocytic activity as well as by reduction of Eimeria spp. oocysts. GPx values were lower; it means, no oxidative stress was evoked. Moreover, it has not negative influence on growth performance and biochemical parameters. Our results indicated that enterocin produced by not-autochtonous strain can also have protective and beneficial effect in broiler rabbits.
Keywords— Enterocin, effect, microbiota, immunity, rabbit.
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