Table 4.

Literature heritability (h²) estimates for bovine respiratory disease (BRD), cortisol, and immune response measures in livestock

Variable	Breed	n	h 2 d 1	Source
BRD	Beef cattle	10,142	0.10 ± 0.02	Muggli-Cockett et al. (1992)
	Beef cattle	110,412	0.20 ± 0.012	Snowder et al. (2005)
			0.48 ± 0.013
	Beef cattle	18,112	0.08 ± 0.01	Snowder et al. (2006)
			0.18 ± 0.013
	Beef cattle	18,112	0.08 ± 0.01	Snowder et al. (2007)
	Angus ×	1,519	0.07 ± 0.04	Schneider et al. (2010)
Cortisol	Swiss Landrace	417	0.40 ± 0.02	Kadarmideen and Janss (2007)
IgG	Holstein	1,293	0.12 ± 0.06	Mazengera et al. (1985)
IgG1	Beef cattle	–	0.05 ± 0.17	Gilbert et al. (1988)
IgG2	Holstein	190	0.28 ± 0.22	Mallard et al. (1983)
	Holstein	137	0.02 ± 0.31	Detilleux et al. (1994)
	Holstein	1,293	0.10 ± 0.07	Mazengera et al. (1985)
	Red Danish	758	0.12 ± 0.08	Thode Jensen and Christensen (1975)
IL-8	–	–	–	–

¹ h ² _d = direct genetic effect.

²Preweaning heritability estimate.

³Calculated on an underlying continuous scale.