From Today's New York Times
Animal Ethics
JANUARY 7, 2015
The tiny cages and crates that confine about 90 percent of laying hens and more than 80 percent of gestating sows are both physically and mentally tormenting for the animals involved. Mentally, they go insane from boredom and stress, just as our dogs or cats would if they were kept in tiny crates or carriers for their entire lives.
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