%0 Journal Article %T Age-related changes in the shell gland and duodenum in relation to shell quality and bone strength in commercial laying hen hybrids %A Anna Wistedt %A Helena Wall %A Yvonne Ridderstr£żle %J Archive of "Acta Veterinaria Scandinavica". %D 2019 %R 10.1186/s13028-019-0449-1 %X The online version of this article (10.1186/s13028-019-0449-1) contains supplementary material, which is available to authorized users %K Bone strength %K Carbonic anhydrase %K Domestic hen %K Eggshell formation %K Eggshell quality %K Oestrogen receptors %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6417018/