PICO Elements		Search Terms	Boolean Operator
Patient/population	Cattle Sheep Pigs Goats	cattle OR cow* OR bovine* OR steer OR sheep OR ovine OR ram OR wether OR goat* OR kid* OR caprine OR lamb* OR pig* OR sow* OR porcine	-
Intervention	Castration Spay Mulesing Dehorning/disbudding Tail docking	Castrat* OR spay* OR spey* OR tail* OR mule* OR *horn* OR *bud*	AND
Comparison	-	-	-
Outcome	Long term pain	Pain* AND long* NEAR term	AND
	(*) is a truncation symbol to search for all endings to a word.