If you are actively fertilising the grass which the assessed cattle are grazing on with manure (in addition to the manure excreted when grazing), then the applied amount of manure and respective emissions need to be accounted for as part of the beef or dairy assessment by entering it under grassland fertilisation. If the application happens in crop or perennial production (e.g. corn field), the manure should be entered in the fertiliser model of the respective pathway.