The aim is to feed the pigs as far as possible "right to the point", because overconsumption leads to unnecessary excretion and thus more manure. The nutrient balance is sustainably improved through the developed feeding concept and contributes to safeguarding the future of pig fattening. AGRAVIS expert Bernhard Walgern explains the background and details of the new feeding concept.
What was the reason for the new concept?
Walgern: The new German Fertiliser Ordinance was impending and it further limits the fertilisation of manure. Instead of 20 kilograms of phosphorus (P2O5) surplus per hectare, only 10 kilograms are allowed. The reduction of the creditable N-losses is also an issue. Just like the consideration of nitrogen from the biogas fermentation residues. All of this combined leads to larger space requirements. We would like to pass on our know-how on the reduction of nutrient excretion through our feeding concept to pig farmers.
What changes are there in the feed itself?
Walgern: For an exact feed supply without overconsumption, the feed is designed on the basis of digestible nutrients. On the one hand, we combine "ideal protein" with an energy assessment according to net energy. And on the other, we calculate the feed based on digestible phosphorus. Pressure is taken off the animals' metabolism and N and P excretions are reduced further. All new developments have no impact on the performance of the animals – on the contrary. They go hand-in-hand with improved animal health. And healthy animals are high-output animals.