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.
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Undercover video shows cows fitted with 'portholes' into their
