Relative contributions of diet and sunshine to the overall vitamin D status of the grazing ewe - Smith, B S; Wright, H (Veterinary record, 1984)
Keywords: 25-Hydroxyvitamin D 2; Animals; Calcifediol - blood; Diet; Ergocalciferols - analogs & derivatives; Ergocalciferols - blood; Female; Seasons; Sheep - blood; Sunlight; Vitamin D - blood