Die Bodenkultur - Journal for Land Management, Food and Environment


The effectiveness of microbial phytase addition to layer rations on maize and wheat basis


In two feeding trials with laying hens the effectiveness of a microbial phytase addition to maize soybean and wheat soybean rations was tested. Both feed mixtures contained 3.3 g/kg total P and 2.2 g/kg phytate P. Each ration was fed without additions, with phytase addition and with a mineral P supplementation. By phytase or mineral P supplementation to the maize based diet the performance of the hens was kept on a significantly higher level. However, the additions to the wheat based diet did not influence the performance parameters. The hens getting the phytase added ration obtained a better stability of egg shell. Key-words: laying hen, maize, wheat, phytase, egg performance.