Table 1.

The Population, Exposure, Outcome (PEO) framework of terms used in the literature search; the search algorithm was designed using the Boolean operators “AND” & “OR” to ensure that at least one term from each PEO component was returned.

Population (Bovine)	Exposure (Genetics)	Outcome (Behavioural)
Cattle,	QTL,	Temperament,	Docility,
Cow,	“Gene”,	Aggressi *,	Fear *,
“Steer”,	Genetic *,	“Chute Score”,	“Crush Score”,
Heifer,	Heritab *,	Flight,	“Exit Time”,
Bull,	Marker,	“Exit Speed”,	“Exit Score”,
Dairy,	SNP,	“Exit Velocity”,	Excit *,
Beef,	GWAS,	“Movement Measuring Device”,
Herd,	Genomic *	“Strain Gauge”,	“Coping Style”,
“Bos taurus”		Boldness,	Personality,
		Proactive,	Reactive

* Indicates the term is truncated and the ‘wild card’ can represent any character(s); inverted commas indicate that the exact term must be matched.