No one could complain about a lack of variety when it comes to choosing bedding material for cows to lie on in their cubicles. The choice ranges from straw to sawdust, shavings to sand, and waste paper to rubber pillows. But these materials all have their drawbacks, whether it's the cost of sawdust, the lagoon-clogging qualities of sand or the sheer dustiness of straw that's chopped and blown into cubicles.
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