Nutrient digestion At 34 days of age nutrient digestion of birds fed either the positive control diet or the diet with absorption enhancer was determined based on nutrient analysis of faeces and feed and using titanium dioxide as a undigestible tracer. The dry matter digestibility significantly increased (+7.8%) in birds fed the diet with absorption enhancer over those fed the positive control diet (Table 3). Similarly, birds fed the diet with absorption enhancer had 4% and 5% higher fat and protein digestibility, respectively. Ultimately, the increased nutrient digestion significantly affected the AMEn of the diets (Figure 1). The diet with absorption enhancer contributed over 250 kcal/kg extra dietary energy, on top of the already more than 75 kcal/kg of energy reduction compared to the positive control diet.
Table 3. Nutrient digestion (%) of broilers fed a basal diet (Positive control) or a basal diet with reduced energy and 500 ppm absorption enhancer*
Treatment Positive control Absorption enhancer*
Dry matter digestibility 69.7b 75.6a
Protein
digestibility 66.1 71
Fat
digestibility 85.5 89.7
a-b Values within columns with different superscripts are significantly different (P<0.05)
*LYSOFORTE EXTEND dry, Kemin Europa NV
Economic impact Considering the performance and nutrient digestibility of broilers fed either the positive control diet or the diet with absorption enhancer, the contribution of an absorption enhancer as a tool for economical
Figure 1. Apparent metabolisable energy delivered to broilers of 35 days of age fed a basal diet (Positive control) or a basal diet with reduced energy and 500 ppm of absorption enhancer
2900 3000 3100 3200 3300 3400 3500 3600
Positive control
+293 kcal/kg
Absorption enhancer*
sustainability becomes very clear. By feed reformulation, €7 per tonne of direct feed cost savings could be achieved, while maintaining the highest performance. This equates to 1.2 cents saving per kg of body weight and thus contributes to a more economical way of poultry protein production.
Conclusion Absorption enhancers are promising tools for the animal feed industry. The present study clearly indicates how nutrient absorption can be improved using a mixture of lysolecithin, monoglycerides and synthetic emulsifier to avoid wastage via the faeces and improve performance. Moreover, considering the ever-increasing challenge of raising animals with high quality feed at the lowest possible cost, improved nutrient utilization through an absorption enhancer controls feed costs and improves profitability.
Nutrient Absorption
Better feed. Faster growth.
www.kemin.com/lysoforte
Advert_feedcompounder_landscape_124x178.indd 1 FEED COMPOUNDER NOVEMBER/DECEMBER 2019 PAGE 31 10/10/2019 9:18:10
Apparent metabolisable energy (kcal/kg)
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