Editing Fodder (section)

==Health concerns==

In the past, [[bovine spongiform encephalopathy]] (BSE, or "mad cow disease") spread through the inclusion of ruminant [[meat and bone meal]] in [[cattle]] feed due to [[prion]] contamination. This practice is now banned in most countries where it has occurred.{{Citation needed|date=May 2021}} Some animals have a lower tolerance for spoiled or moldy fodder than others, and certain types of [[Mold (fungus)|mold]]s, [[toxin]]s, or poisonous weeds inadvertently mixed into a feed source may cause economic losses due to sickness or death of the animals.  The US Department of Health and Human Services regulates drugs of the [[Veterinary Feed Directive]] type that can be present within commercial livestock feed.{{Citation needed|date=May 2021}}