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m h fohrman
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Use of the camera in studying the growth and development of dairy animals
M. H. Fohrman · U.S. Dept. of Agriculture
24 sayfa · 1926
Dairy cattle / Growth / Development / Photography of animals
Experiments in breeding Holstein-Friesian cattle for milk- and butterfat-producing ability, and an analysis of the foundation cows and of the first out-bred generation
M. H. Fohrman · U.S. Dept. of Agriculture
82 sayfa · 1939
Breeding / Holstein-Friesian cattle / Dairy cattle