The genetic basis for the selection of dairy goats with enhanced resistance to gastrointestinal nematodes

Open Access

Table 3.

Heritabilities (on diagonal, bold, dark grey), genetic correlations (above diagonal, grey) and phenotypic correlations (below diagonal, light grey) for the traits FECtrans, FAMACHA, PCV and milk yield for models MV3, MV4L and MV4TD in the upper section and for the traits FECtrans_haem, FAMACHA, PCV and test day milk yield for model MV4TD in the lower section. In each cell, the upper line is the parameter estimate, the lower line is its standard error. “*” indicates that the parameter estimate is significantly different from zero on the 5% level using a t-test. Note that phenotypic correlations are not model-dependent, thus the cells in the lower triangle of the table are merged across models with a single estimate per cell.

	FECtrans			FAMACHA			PCV			Milk yield
	MV3	MV4L	MV4TD	MV3	MV4L	MV4TD	MV3	MV4L	MV4TD	MV3	MV4L	MV4TD
FECtrans	.07*	.07*	.07*	−.03*	−.02	−0.01	−.39*	−.40*	−.41*	–	.19	.49*
	*.01*	. 03	*.01*	.01	.23	.01	.01	.20	.01		.17	.01
FAMACHA	0.18*			.22	.22*	0.22*	−.60*	−.60*	−.60*	–	.17	.11*
	.02			*.42*	.04	.01	.01	.11	.01		.10	.01
PCV	−.27*			−.17*			.22*	.22*	.22*	–	−.39*	−.35*
	.02			.02			*.01*	*.04*	*.01*		.1	.01
Milk yield	.01			.22*			−.07*			–	.28*	.12*
	.02			.02			.02				*.07*	*.02*
	FECtrans_haem			FAMACHA			PCV			Milk yield TD
FECtrans_haem			.04			.22*			−.55*			.63
			*.03*			.01			.01			.01
FAMACHA	.16*					.20*			−.61*			.12
	.02					*.00*			.01			.01
PCV	−.29*			−.17*					.22*			−.28
	.02			.02					*.01*			.01
Milk yield	−.10*			−.08*			−.09*					.12*
	.02			.02			.02					*.00*

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