Unfavorable genetic correlations between fecal egg count and milk production traits in the French blond-faced Manech dairy sheep breed

Table 2 Genetic parameters for parasite resistance and milk production traits

Traits	root_FEC_inf1	root_FEC_inf2	MY	FY	PY	FC	PC	LSCS
root_FEC_inf1	0.19 ± 0.07	0.93 ± 0.25	− 0.14 ± 0.24	0.19 ± 0.19	− 0.20 ± 0.27	0.57 ± 0.73	0.03 ± 0.18	− 0.05 ± 0.20
root_FEC_inf2		0.37 ± 0.09	0.28 ± 0.10	0.29 ± 0.11	0.24 ± 0.10	− 0.02 ± 0.09	− 0.20 ± 0.10	− 0.17 ± 0.11
MY			0.29 ± 0.007	0.83 ± 0.006	0.91 ± 0.003	− 0.39 ± 0.02	− 0.45 ± 0.01	0.14 ± 0.02
FY				0.24 ± 0.007	0.85 ± 0.005	0.18 ± 0.02	− 0.15 ± 0.02	0.21 ± 0.03
PY					0.26 ± 0.007	− 0.18 ± 0.02	− 0.04 ± 0.02	0.21 ± 0.02
FC						0.35 ± 0.007	0.54 ± 0.01	0.09 ± 0.02
PC							0.48 ± 0.007	0.08 ± 0.02
LSCS								0.15 ± 0.006

Heritability estimates are written in italics on the diagonal and genetic correlation estimates are above the diagonal. These estimates are considered significantly different to zero when zero is out of their confidence interval (twice the standard error of the estimates), which corresponds roughly to a p-value lower than 0.05
Root_FEC_inf1 and root_FEC_inf2 are the fourth-root transformed values for FEC_inf1 and FEC_inf2 respectively; MY: milk yield; FY: fat yield; PY: protein yield; FC: fat content; PC: protein content; LSCS: lactation mean somatic cell score

ISSN: 1297-9686