Browsing 1910-1919 Theses (MU) by Title "Normal growth of dairy heifers"
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Normal growth of dairy heifers
(University of Missouri--Columbia, 1914)The Federal Office of Farm Management reports (March, 1914) that there are 21,749,651 dairy cows in the United States. Considering the average productive life to be six of seven years, it is evident that 3,000,000 to ...