Stiftung Tierärztliche Hochschule Hannover (TiHo)TiHo eLib

Effect of dietary β-Mannanase addition on performance, pododermatitis, and intestinal morphology as well as digesta Clostridium perfringens in broiler chickens: a pilot study

This preliminary study was conducted to evaluate the effects of β-mannanase in diets of broilers on performance, pododermatitis, intesti-nal morphology, and digesta Clostridium perfringens counts. a total of 264 broilers (ross 308) were randomly allotted to four treatments. A wheat-soybean based diet (CO) was supplemented with either 0.15 g xylanase/kg (XY), 0.15 g xylanase/kg + 110 mL β-mannanase/ton (MA1) or 0.15 g xylanase/kg + 220 mL β-mannanase/ton (MA2). At the end of the experiment, only significant differences in body weight were noted between groups fed MA1 and MA2 diets (2501 g vs 2641 g, respectively). Birds fed MA1 had significantly the lowest pododermatitis scores (2.26) compared to other groups. ileal villus height measurements revealed that birds fed co and ma2 diets had significantly higher values (1614 and 1651 μm, respectively) than those fed the MA1 diet (1489 μm). The positive percent of Clostridium perfringens in intestinal digesta at d 36 was significantly the highest in the XY group. Overall, although not improving performance, sup-plementing the diet with β-mannanase (110 mL/ton) contributed positively to foot pad health.


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