I know it sounds weird, but trust me, it’s all a genuine thing.
Well, scientists have found out a way to keep a track on animal’s ‘health status’, by making a hole in their stomach.
#1 First of all, let me clear that it’s not what you are thinking and its completely safe for cows.
#2 These holes are permanent and made in cow’s stomach surgically.
#3 These holes are called fistulas , and are covered by a cannula- a sort of cover from the outside world.
#4 These holes are used to test the ‘digestibility’ in cows.
#5 With the help of these holes, you can find immediately if your cow is suffering from bad digestion and hence you can treat her well.