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Livestock productivity. (26) |
Cattle. (10) |
Feeds. (9) |
Ecology. (3) |
Agricultural machinery. (2) |
Animals -- Diseases. (2) |
Forage plants. (2) |
Manures. (2) |
Sheep. (2) |
Corn. (1) |
Livestock productivity. (26) |
Cattle. (10) |
Feeds. (9) |
Ecology. (3) |
Agricultural machinery. (2) |
Animals -- Diseases. (2) |
Forage plants. (2) |
Manures. (2) |
Sheep. (2) |
Corn. (1) |