Differences in metabolic parameters and gene expression related to Osteochondrosis/Osteoarthrosis in pigs fed 25-hydroxyvitamin D$_3$ David Jefferies, Colin Farquharson, Jill Thomson, William Smith, Elaine Seawright, Heather McCormack and Colin Whitehead Vet. Res., 33 4 (2002) 383-396 DOI: 10.1051/vetres:2002024