The cows with holes in their sides – Channel 4 News

A Swiss company has released footage of14 cannulated cows - cows that have a hole in their sides that allow farmers to look into their stomach and ensure more balanced feeding for the animals.
A Swiss company has released footage of14 cannulated cows - cows that have a hole in their sides that allow farmers to look into their stomach and ensure more balanced feeding for the animals.

Watch: Biggleswade bullocks trample fence and pack into garden

Cows with Holes in Their Sides

Undercover video shows cows fitted with 'portholes' into their

Beaver Smithsonian's National Zoo and Conservation Biology Institute

Why Do These Cows Have Holes Drilled Into Their Sides?

Undercover video shows cows fitted with 'portholes' into their

Kent Wildlife Trust

The cows with holes in their sides – Channel 4 News

Watch as cow trapped in a sinkhole hidden in corner of its field

Undercover video shows cows fitted with 'portholes' into their

Farmers monitoring what cows eat using 'windows' in their sides

Lincoln Uni cows used for 'cruel and barbaric' research

Woffeys pet supplies

Farmers dig out cow stuck in cliff hole in Cornwall - BBC News

Why do cows…. … often stand in a field facing the…