Slurry wizard user guide: 2. Livestock data entry (tab 3)

Number, type, age and yield

The slurry wizard allows you to enter data of all livestock on the farm, including type, number, age and yield, to provide a farm nitrogen loading calculation and to calculate the amount of slurry produced.

Your farm’s nitrogen loading figure is calculated by dividing the total nitrogen output by the farmable area. However, this figure does not take in to account any export/import of manure.

You should consider the farm nitrogen loading in relation to the requirement for Nitrogen Vulnerable Zones (NVZ) and The Water Resources (Control of Agricultural Pollution) (Wales) regulations and/or Cross Compliance. Your farm’s nitrogen loading result will appear at the top of the Slurry Report page once you have entered all the data.

The Livestock data entry includes cattle, pigs and then all other livestock types that usually produce excreta to enable calculation of the N loading figure.

An example is shown below:

• Enter the annual average number of livestock into the white boxes in each category
• Enter the % collected as slurry in the white boxes in each category, e.g. in the example above, there are 120 cows in the milking herd, but with dry cows housed on straw, the amount collected as slurry is reduced to 85%. Where livestock are housed in a building that includes a straw bedded area and scrape passages, set the % collected as slurry to 50%; set as 0% where the floor is completely bedded

Once you have completed this section, click on the ‘Slurry Report’ tab.