Once-a-day versus twice-a-day feeding for dairy cows / by J.R. Dawson and David V. Kopland.
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Format: | Government Document Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of Agriculture,
1949.
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Series: | Circular (United States. Department of Agriculture) ;
no. 830. |
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