The influence of supplementary phytase to a phosphorus-poor ration on various performance parameters and the phosphorus balance of laying hens

The effects of phytase (Natuphos(R), BASF AG, Ludwigshafen) on various performance parameters and on the excretion of phosphorus or phosphorus balance have been proved in four successive balance experiments. A feed which mainly consisted of maize and soya bean meal was used as the base. The basic mixture served as phosphorus deficieny ration. Phytase or anorganic phosphorus were supplemented to it. There were no significant differences between the diets concerning the performance parameters. However, the total phosphorus balance was influenced positively and the total phosphorus utilization was raised significantly by the supplementation of enzyme.