milk -

http://stonecottageconsciousness.blogspot.com/2015/09/between-stone-house-and-dirt-road.html

In addition to supplying freshest eggs, meat, honey and milk, breeding farm animals has benefits for our health. Fresh air, the view and the sound of animals all this has a sedative effect, a distraction from worries and stress.

You must care for your livestock every day. They pull you away from your house, reflections and force you to get out for some exercises.

The other important reason for breeding livestock is educational value. Raising animals for food teach kids the basics of producing food. I think that looking after animals is a wonderful way to teach children responsibility, compassion and patience.

The best way to learn children about the natural processes of procreation, birth and death is raising animals or study visit to the farm.