Estimation of (co)variances for genomic regions of flexible sizes: application to complex infectious udder diseases in dairy cattle

Table 1 Whole-genome genomic proportions of total variance (GPV) and pedigree-based estimates of heritability h ² for progeny means of mastitis susceptibility to five pathogens and general mastitis and standard deviations (SD) of the estimates

Trait	GPV^a(range)	Average GPV^b	SD (range)	h ²
Staph. aureus	0.46-0.48	0.48	0.022-0.025	0.58
CNS	0.62-0.64	0.63	0.020-0.023	0.79
E. coli	0.47-0.48	0.47	0.024-0.026	0.56
Strep. dysgalactiae	0.40-0.42	0.41	0.024-0.029	0.50
Strep. uberis	0.49-0.51	0.51	0.023-0.025	0.59
General mastitis	0.52-0.52	0.52	0.024-0.026	0.64

Pedigree based heritabilities are shown for comparison; ^afrom multiple pair-wise combinations with the trait; ^baverage across analyses

ISSN: 1297-9686