Premixtures are homogeneous mixtures made of the same kind of additives or different kinds of additives according to a certain proportion. Because the proportion of additives in premixes is very small, most of them are calculated in milligrams/kilograms or grams/kilograms.
The proportion of premix additives commonly used in dairy cows is 1%-5%. It is composed of multidimensional elements, trace elements, constant mineral elements, some non-nutritive additives of protein feed and carrier.
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