With our AHRHOFF feeding concepts you save “valuable” arable land!
As shown in the trial in Futterkamp, N- and P-reduced feeding in pig fattening can save large amounts of nitrogen and phosphorus. This means that less liquid manure has to be applied and fewer hectares of agricultural land are required for fertilization. This means that N- and P-reduced feeding also has a positive effect on the material flow balance. The DLG has published calculated nutrient excretions for different feeding methods and performance levels for fattening pigs in leaflet 418. A comparison with the DLG recommendation for N- and P-reduced feeding (see tables below) shows that the AHRHOFF concept can achieve an area saving of 16.5 ha. For a fattening barn with 1500 fattening places and feeding according to the DLG recommendation for N- / P-reduced feeding, the farm requires 90.1 ha of agricultural land for the application of nitrogen in the liquid manure. If fed according to the AHRHOFF concept, the farm requires only 73.6 ha of agricultural land for spreading the liquid manure.
Usually, the material flow balance is calculated using the nutrient excretions published by the DLG. In order to be able to use the lower N and P excretions of the AHRHOFF concept, individual excretions must be analysed by an authorized person (e.g. LWK etc.) based on the ingredients of the specific ration. That’s the only way how you can profit from these positive effects on the material flow balance.
