Scientists are always looking for the next, best thing.
And in their quest to determine how much air and environmental pollution farm animals contribute to the Earth each year, it can become necessary to teach those same farm animals how to do their business on demand.
Think of this along the lines of you you’d housebreak a dog, or teach a cat to use the toilet instead of a litter box — all animals can be taught to associate bathroom time with a specific action, method or command — the object with farm animals is that you’re dealing with the same on a much, much bigger scale.