Enzyme addition facilitates the post-disease compensatory growth of broiler chickens challenged with Clostridium perfringens
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Jia, W., Slominski, B. A., Bruce, H. L., Nyachoti, C. M. and Jones, R. M. (2009). Enzyme addition facilitates the post-disease compensatory growth of broiler chickens challenged with Clostridium perfringens. Canadian Journal of Animal Science, 89(3), 369-381. http://dx.doi.org/10.4141/CJAS09017
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http://dx.doi.org/10.4141/CJAS09017
Abstract
Description
In vitro incubation studies using a multicarbohydrase supplement showed a significant depolymerization of nonstarch polysaccharides (NSP) of soybean meal (SBM), canola meal and flaxseed meal, which was associated with the production of water-soluble NSP hydrolysis products. Effects of diet type and enzyme addition on growth performance of broiler chickens were investigated in a Clostridium perfringens challenge (109 CFU bird-1 on day 14) study. A total of 2640 male chickens were assigned to six treatments (wheat/SBM, unchallenged; wheat/SBM challenged; wheat/SBM + enzyme, challenged; wheat/flaxseed, unchallenged; wheat/flaxseed, challenged; wheat/flaxseed+enzyme, challenged). When compared with the wheat/SBM-based diets, birds fed flaxseed-containing diets had a decreased final body weight, an inferior overall feed conversion ratio (FCR), and an increased intestinal digesta viscosity (P < 0.01). Pathogen challenge caused mucosal lesions and increased (P < 0.05) the incidence of necrotic enteritis mortality with the highest mortality rate observed in birds fed the flaxseed diet without enzyme. Enzyme addition decreased (P < 0.05) the overall FCR from 1.88 to 1.77 and from 1.96 to 1.86 in challenged birds fed wheat/SBM and flaxseed-containing diets, respectively. In conclusion, feeding flaxseed had adverse effects on growth performance, and enzyme addition improved the nutritive value of flaxseed-containing diets, and facilitated the post-disease compensatory growth of chickens after C. perfringens challenge.
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http://purl.org/coar/resource_type/c_6501 http://purl.org/coar/version/c_970fb48d4fbd8a85
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@2009 Jia, W., Slominski, B. A., Bruce, H. L., Nyachoti, C. M., Jones, R. M. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
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en