Mapping of quantitative trait loci affecting eggshell quality on chromosome 9 in an F(2) intercross between two chicken lines divergently selected for eggshell strength.

Abstract excerpt

Broken and cracked eggshells are major causes of significant economic losses to the egg production industry. The quantitative trait loci (QTL) on chromosome 9 influencing the quality of eggshells were identified by analysing an intercross between two parent lines developed from the same founder population by a two-way selection for eggshell strength with non-destructive deformation conducted over 14 generations....

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