The Open Door To Greater Dairy Profits
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✎ Suggest a correctionTraces the nutritional development of a dairy cow, showing the changing requirements at freshening time, at peak production and during late pregnancy. Shows the esophogeal groove in action in a live calf.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
- Educational film guide. Supplements (1959-62) — title, year, creator, length, format, color, sound, description, catalog record
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