Evaluation of a Feed-Grade Enzyme in Broiler Diets to Reduce Pododermatitis

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Sci., 76, 864, 10.1093/ps/76.6.864 Gracia, 2003, α-Amylase supplementation of broiler diets based on corn, Poult. Sci., 82, 436, 10.1093/ps/82.3.436 Mathlouthi, 2002, Xylanase, β-glucanase, and other side enzymatic activities have greater effects on the viscosity of several feedstuffs than xylanase and β-glucanase used alone or in combination, J. Agric. Food Chem., 50, 5121, 10.1021/jf011507b Allzyme Vegpro, Alltech, Nicholasville, KY 40356. Allzyme Vegpro contains a combination of protease, cellulase, pentosanase, α-galactosidase and amylase enzymes. Added at a rate of 1.2 lb/ton or 0.06%. Active constituents: 7,659 hydrolyzing units of trypsin units/mL of fungal protease. There were 50 birds of either sex/pen and 8 replicate pens/treatment. The pens were 1.70 × 2.30 m in dimension with a final stocking density of 12.14 birds/m2. IEC Micro-MB, International Equipment Co., Needham Heights, MA. The samples were centrifuged at 12,700 × g for 5 min. Model LVDV-E, Brookfield Engineering Laboratories Inc., Middleboro, MA. Bedford, 1993, An in vitro assay for prediction of broiler intestinal viscosity and growth when fed rye-based diets in the presence of exogenous enzymes, Poult. Sci., 72, 137, 10.3382/ps.0720137 The footpad lesions were assigned to 1 of 3 values: 0 = footpads with no lesions, dermal ridges intact within the central plantar footpad surface, with or without discoloration; 1 = footpads with mild lesions, dermal ridges not intact within a central, round to oval ulcer on the central plantar footpad surface, roughened lesion surface with small tag of crust <1.5 cm in diameter; and 2 = footpads with severe lesions with large brown discolored ulcers of >1.5 cm in diameter. Hoskins, B., A. Wolf, and N. Wolf. 2003. Dry matter analysis. Recommended Methods of Manure Analysis (A3769). I-2/2003. http://learningstore.uwex.edu/pdf/A3769.pdf Accessed Jan. 2007. Watson, M., A. Wolf, and N. Wolf. 2003. Total Kjeldahl nitrogen. Recommended Methods of Manure Analysis (A3769). I-2/2003. http://cecommerce.uwex.edu/pdfs/A3769.PDF Peters, J., A. Wolf, and N. Wolf. 2003. Ammonia-N determination by combustion. Recommended Methods of Manure Analysis (A3769). I-2/2003. http://cecommerce.uwex.edu/pdfs/A3769.PDF The statistical model consisted of 2 × 2 × 2 factorial arrangement of protein level, protein source, and sex. The data were analyzed for main effects, 2-way and 3-way interactions between the protein levels, sources, and enzyme. On d 57, the footpad lesions were analyzed for protein level, protein source, sex, and enzyme supplementation. SAS Institute, 2002 Smiricky, 2002, The influence of soy oligosaccharides on apparent and true digestibilities and fecal consistency in growing pigs, J. Anim. Sci., 80, 2433 Berg, 1998 Martland, 1984, Wet litter as a cause of plantar pododermatitis, leading to foot ulceration and lameness in fattening turkeys, Avian Pathol., 13, 241, 10.1080/03079458408418528