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Full matrix with phytase maintains broiler growth, cuts costs

Escrito por: aviNews Asia

Application of a full nutrient and energy matrix with phytase can maintain growth performance of broilers and reduce feed costs compared with a minerals matrix alone, found a research by Abiodun Bello and his team from Danisco Animal Nutrition & Health (IFF) and India’s Agrivet Research & Advisory.

The researchers evaluated the effect of stepwise application of a nutrient and energy matrix for a consensus bacterial 6-phytase variant (PhyG) to a corn-based diet, without or with xylanase-amylase-protease (XAP) supplementation.

Materials and methods

Day-old, Ross 308 males (2,400) were assigned to eight treatments (10 replicate floor pens per treatment) in a randomized controlled block design.

Diets were formulated in four phases and comprised:

Results

Orthogonal polynomial contrasts revealed:

These measures were incrementally impaired with increasing matrix severity through PC, NC1, NC2 and NC3.

Supplemental PhyG:

Treatments NC3+PhyG and NC4+PhyG+XAP maintained all outcome measures at levels not different from the PC but with a lower estimated feed cost per kilogram BW gain than PC or NC1+PhyG (-0.039 USD/kg BW gain in NC3+PhyG vs. NC1+PhyG; P < 0.05).

Conclusion

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