Fig. 2: AVIMATRIX targets the small and large intestines of the bird and is efficient under neutral pH conditions in the gut
potential pathogenic strains was found. Higher numbers of lactic acid bacteria and lower numbers of E. coli were found in the intestinal tract of the AVIMATRIX fed birds. Such a shift is usually associated with a better gut health and higher growth of the animal. This confirms the effectiveness of the Novus Premium Blend formulation and that the site of delivery of the active ingredients in the GIT is crucial to ensure an optimal stabilization of the microflora.
A recent study, performed in cooperation with the University of
Berlin and published at the European Symposium of Poultry Nutrition in Germany (August 2013) evaluated the positive effects of AVIMATRIX
Fig. 3: The release profile of the active ingredients (AI) in feed and digesta (on dry matter basis) from birds supplemented with either a blend processed by Novus Premium Blend Technology or the respective free ingredients along the digestive tract
Impact on litter quality, footpad lesions and bird performance To demonstrate the correlation between the impact of AVIMATRIX on the gut microbial balance, the improvement of litter quality and prevalence of footpad dermatitis, several studies have been performed under commercial conditions. One of the first studies on litter quality ever, was carried out in the
Netherlands together with the Wageningen UR Livestock Research centre. In total, 400 one day old birds (Ross 308) were allocated into two groups: Control vs. 500g/t AVIMATRIX. Each group contained 10 replicates with 20 broilers per pen. The litter of the birds supplemented with AVIMATRIX, was drier compared to those of non AVIMATRIX fed birds (fig. 4). This was also reflected in an assessment of the litter friability (fig. 5).
Fig. 5: AVIMATRIX improved litter quality as seen in a higher ratio of drier litter
on the microbial flora in an in-vivo model, in comparison with non- supplemented birds (Fig. 4): 5 birds per group, 8 replicates each. When analyzing the microbial balance in the ileum of the birds at 35 days of age, a significant modification of the ratio between the beneficial and
Fig. 4: AVIMATRIX supports the beneficial gut flora and significantly increases the ratio between the lactobacilli and
E.coli in the GIT
Remark: The scoring of moisture and friability both are based on a standardized, visual scoring system, developed by Wageningen UR LR Centre.
FEED COMPOUNDER JANUARY/FEBRUARY 2014 PAGE 27
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