Carcass conformation and fat cover scores in beef cattle: A comparison of threshold linear models vs grouped data models

Table 5 Heritability estimates for carcass conformation and fat cover

		TLM	SHTLM	SEXTLM	TlogLWM	GDM
CON	σ_u²	0.344	1.206	1.668	0.621	0.609
	σ_h²	0.089	0.548	0.735	0.180	0.180
	σ_e²	0.666	2.304	3.238	1	1
	h²	0.313	0.300	0.291	0.345	0.340
FAT	σ_u²	0.092	0.131	0.144	0.306	0.306
	σ_h²	0.037	0.063	0.088	0.151	0.170
	σ_e²	0.245	0.451	0.454	1	1
	h²	0.245	0.205	0.207	0.210	0.207

Estimated additive (σ_u²), herd (σ_h²) and error (σ_e²) variances and heritabilities (h²) for carcass conformation (CON) and fat cover (FAT) under a threshold linear model (TLM), a specific slaughterhouse threshold linear model (SHTLM), a specific sex per slaughterhouse threshold linear model (SEXTLM), a threshold log linear Weibull model (TlogLWM), and a grouped data model (GDM)

ISSN: 1297-9686