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Topic
- Agriculture 15
- Livestock 15
- Oregon State University. Extension Service 8
- 4-H clubs 4
- Cattle 4
- Chickens 4
- Animal housing 2
- Cows 2
- Sheep 2
- Turkeys 2
- Bulls 1
- Children and animals 1
- Exhibitions 1
- Grazing 1
- Incubators 1
- Railroad cars 1
- Ranches 1
