Giant Holes In The Stomach Of The Cows? Why Did Farmers In Switzerland Do That?

Farmers in Switzerland have fitted nearly 14 cows with fistulas or cannulas. It's an external pipeline which connects to the digestive track of the cow. With its help, the farmers can easily access and examine it. Read the article to know more.

3. An experiment.

This technique is used to see different varieties of oats and other crops are being tested in the digestive track of the cows.

4. This practice was done way back in 1920s.

The cannula is inserted surgically and a rest period is given to the cow to recover from the procedure. After the rest period, the cow can be put under examination for testing of various crops.