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| - Supplements fed through the diet (vitamin E, vitamin C, carotene, and trace elements such as selenium, zinc or ??-flavonoids, vitamin A, and manganese???fundamental chain of enzymatic antioxidants???) have been proven useful to reduce the occurrence of udder infections and improve the quality of their production, in terms of fat, protein, and somatic cell count [5, 11], giving to the product an ad
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