Abstract:Vitamins are microelements which do not play a critical role in animal feed formulation, mainly because of their commercial availability in the synthetic form at relatively low prices (the cost of vitamin A in a feed supplemented to 10,000 IU/kg is about 30 centimes per 100 kg). Some cereal by-products, like bran, exhibit a high phytase activity, which may enhance phytic P digestibility. This was studied in growing pigs given phytate-rich diets containing either wheat-(WB) or rye (RB)-bran. Two trials involvin… Show more
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