Copper is an essential trace element, meaning it is required by animals in very small amounts (mg/d) for normal body functioning.  We often talk about copper as essential for cattle, but potentially toxic for sheep. Here, we will discuss this topic, to help you optimise copper supply [...]

Selenium is an essential trace element, meaning it is required by animals in very small amounts (mg/d) for the maintenance of normal bodily functions. Selenium acts in the body as a component of selenium-containing enzymes, or selenoproteins. Three groups of these selenoproteins are particularly important for stock health and performance [...]