Browsing University of Missouri-Columbia by Title "The nutrients required for growth by heifers of dairy breeds"
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The nutrients required for growth by heifers of dairy breeds
(University of Missouri--Columbia, 1913)According to the census figures there are approximately 20,000,000 cows used for dairy purposes in the United States at the present time. It is probably safe to assume that these cows are milked on the average not more ...