Sheep ANC livestock units census

They have to be over 12 mths old on the date of the census, 31st dec, technically they were only lambs then.

There is, I think, a concession that you can use them to replace culled ewes with them in the spring

It's under the "Animal Identification and Movements", then click continue, then click "Sheep" and then Census at the top left of the page and then "Create" from the drop down menu...