This hole is known as a fistula, and it is installed in a cow through surgery.
Why holes are made in a cows stomach?
Queen Elizabeth Gold Coin Spoons Set Stamp Signed Bona China Thimble Boot Old UK
Burundi: Receiving a Cow Can Transform Someone's Life
Why are portholes being used on cows? - BBC News
US Farmers Are Making These Giant Holes in Their Cows. The Reason? Weird Yet Helpful
Sarus Crane Population in Bhoj on the Rise Due to Community Effort - Vikalp Sangam
Why holes are made in a cows stomach?
This Is Vegan Propaganda Winters Ed Z, PDF, Veganism
Farmers Weekly NZ October 2 2023 by AgriHQ - Issuu
Fodder Crisis: 'We can't give our cattle to butcher. We gradually starve them to death
Fortean Times - issue 02/2024
Why do American farmers make holes in the stomach of cows? - Quora