There are several ways selenium can be supplemented which is convenient for farmers as it allows them flexibility to choose options to fit their unique farming system. However, too much selenium can also be toxic and therefore care is needed to ensure that sheep are not overdosed. The following calculator tool has been developed to help aid this.

To download a copy of the calculator for use offline please click here.

(Please save and view the offline calculator in Adobe Acrobat, as it will not work when viewing in your Internet Browser)