Impacts of added phytase depend on the phosphorus content in plant-based feed for broiler chickens
Adjusting the phytase supplementation to the phosphorus content in plant-based feed can be advisable. The currently standard amount of phytase added to feed can limit the utilisation of phosphorus contained in the feed by broiler chickens. Higher amounts of added phytase made this effect very small. This was discovered in the course of an investigation conducted at the University of Hohenheim with our participation. A general aim is to maximise the utilisation in plant-based feeds. This can allow to meet the animals’ requirements without having to use the world's limited mineral phosphorus deposits. In principle, plant-based feeds often contain sufficient phosphorus, but it can only be utilised to a limited extent by the animals. Phytase added to the feed makes plant phosphorus more available to the animals. This allows for less phosphorus in the feed without harming the animals. Environmental emissions from livestock farming are also reduced because the animals excrete less phosphorus. The results of the study are freely accessible: Link
