| 21. | That has kept Minnesota relatively free of the mammoth factory farms that have polluted Iowa.
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| 22. | Dr . Lutz continues her ongoing efforts to end the plight of animals in factory farms.
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| 23. | He describes this experience as a direct contrast to the marketing tactics used by factory farms.
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| 24. | "We think there's a really big difference between factory farms and family farms, " she said.
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| 25. | Currently few policies, regulations and laws exist that promote limitation of antibiotic use on factory farms.
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| 26. | Airplane travel, crowded factory farms and urbanization have all been suggested as possible sources of virulence.
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| 27. | That is the waste runoff from factory farms, particularly the huge poultry operation in the Chesapeake watershed.
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| 28. | Between 2000 and 2003, Mercy For Animals conducted several undercover investigations in egg-producing factory farms and rodeos.
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| 29. | Ammonia is a component of animals'urine, so the factory farms are a significant source of the pollution.
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| 30. | The practice of dairy production in a factory farm environment has been criticized by animal welfare activists.
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