Abstract:This study examined the replacement of the inorganic minerals (IM) Cu, Fe, Mn and Zn with their organic form (OM) in the diet of 67-week-old Dekalb White laying hens by comparing digestibility, production and egg quality. The experiment involved 240 birds, with 48 birds used per treatment and 12 per replicate. Isoenergetic and isonutrient diets were supplemented with 8mg Cu, 50mg Fe, 70mg Mn and 50mg Zn per kilogram of diet from an inorganic premix (IM100), from an organic premix (OM100), or the latter at the … Show more
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