Journal
ANIMAL SCIENCE
Volume 72, Issue -, Pages 95-103Publisher
BRITISH SOC ANIMAL SCIENCE
DOI: 10.1017/S1357729800055594
Keywords
antibiotics; digestibility; enzymes; markers; pigs
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The effects of xylanase and antibiotic addition to the diet, and the use of HCl-insoluble ash as a marker, on ileal and faecal apparent digestibilities of nutrients were studied with 12 growing pigs fitted with post-valvular T-caecum cannulae (PVTC). The results showed that the apparent ileal digestibility of non-starch polysaccharide (NSP) was high, (over 0.30). Xylanase, or antibiotics (Avoparcin) or xylanase plus antibiotics supplementation of the wheat middling-based diets did not significantly (P>0.05) increase the ileal and faecal apparent digestibilities of NSP, neutral-detergent fibre (NDF), dry matter, crude protein, energy or amino acids. There were not significant (P>0.05) differences between the HCl-insoluble ash and Cr2O3 recoveries at the ileal or at the faecal levels: proportionately, 0.864 and 0.911 for the ileal and faecal recoveries of HCl-insoluble ash, and 0.857 and 0.915 for the ileal and faecal recoveries of Cr2O3, respectively.
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