The animal advocacy group Mercy for Animals recently did an undercover investigation at New England's largest egg factory farm, Quality Egg of New England in Turner, Maine. The hidden camera video shot in early 2009 provided a glimpse behind the closed doors of one of the nation's leading egg producers, exposing the truth behind battery cage egg production — what Mercy for Animals calls "heinous cruelty to animals." As a result of the investigation, the state police and Maine Department of Agriculture raided the farm on April 1st.

Mercy for Animals's investigation, highlighted in a 5-minute video, revealed: rotting carcasses in cages with live hens still laying eggs for human consumption; workers and managers killing birds by grabbing their necks and swinging them around in circles; supervisors and workers throwing live birds into trash cans; birds suffering from broken bones, bloody open wounds, and untreated infections; hens confined in tiny wire cages so small they were unable to stretch their wings, move freely or engage in other basic behaviors; birds trapped in the wire of their cages or under the feeding trays without access to food or water; and management and workers kicking live hens into manure pits.

Read More with Video | Mercy for Animals updates

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