Mapping of QTL affecting incidence of blood and meat inclusions in egg layers

BMC Genomic Data

Table 5 The populations and phenotypes used in the study

Pop.	N	Trait	Scaling	Age of evaluation	Correction
F ₂	1599	Blood and meat spots (BMS _F2)	Adjusted from number and type of spots	35, 40, 50 weeks	Average of three sequential eggs, multiplied by 100.
LB	416 ¹	Score	continuous scaling from 0 to 5	36, 40, 42 weeks	LN correction
		Group	count of spots = > high or low	36, 40, 42 weeks	effect of hatch and tier of the battery
		Number of spots	absolute number of spots	36, 40, 42 weeks	(number_corr+0,05)*100
		Size of spots	continuous (in mm)	36, 40, 42 weeks	(size_corr+0,1)*100
		Combination	number * size	36, 40, 42 weeks	(combination_corr+0,1)*100
Hy-Line	290	Blood spots (BL)	Semi-quantitative	early, late	The phenotypes were expressed as sire-daughter averages
		Meat spots (MS)	Semi-quantitative	early, late	The phenotypes were expressed as sire-daughter averages

The studied populations and the number of individuals in each of them are indicated in the 1^st and 2^nd columns. The traits are described in the 3^rd and 4^th columns. The age at time of evaluation is given in the 5^th column. The last column presents the correction functions used for normalizing the phenotypic data (LN = natural logarithm).
¹ The number of hens genotyped in the Lohmann Brown population varied according to marker: MCW241, 767 hens; ZO-2 SNP,516; 15 other SNPs on the Z chromosome, 416; mirRNA-1556 sequencing, 90.

ISSN: 2730-6844