Genome-wide association studies of immune, disease and production traits in indigenous chicken ecotypes

Table 1 Estimates of variance components and heritabilities for traits studied in Horro and Jarso chickens

	IBDV	MDV	SG	PM	Eimeria	Cestodes	BW	BCS
Horro
\(\sigma_{\hbox{a}}^{2}\)	0.0017	0.18	0.015	0.039	0.007	0.017	0.0027	0.062
\(\sigma_{\hbox{p}}^{2}\)	0.0021	0.24	0.130	0.094	0.530	0.094	0.0060	0.348
h²	0.79	0.75	0.11	0.41	0.01	0.18	0.45	0.18
se	0.15	0.16	0.13	0.16	0.13	0.13	0.15	0.13
Jarso
\(\sigma_{\hbox{a}}^{2}\)	0.0003	0.0014	0.0096	0.014	0.2559	0.050	0.0025	0.0988
\(\sigma_{\hbox{p}}^{2}\)	0.0012	0.0030	0.0584	0.086	0.5918	0.14	0.0031	0.2854
h²	0.24	0.46	0.17	0.16	0.43	0.35	0.43	0.34
SE	0.12	0.12	0.15	0.14	0.15	0.16	0.12	0.14

IBDV log transformed antibody titres measured for infectious bursal disease virus, MDV log-transformed antibody titres measured for Mareks’ disease virus, SG log-transformed antibody titres measured for Salmonella enterica serovan Gallinarum, PM log-transformed antibody titres measured for Pasteurella multocida; Eimeria resistance to Eimeria parasitism (log-transformed egg counts/gr of faecal), Cestodes resistance to cestodes parasitism (log-transformed egg counts/gr of faecal), BW body weight (log-transformed kilograms), BCS body condition score (scale 1 to 3); \(\upsigma^{2}_{\rm{a}}\) genetic variance, \(\upsigma^{2}_{\rm{a}}\) phenotypic variance, h ² heritability, SE standard error

ISSN: 1297-9686