Earlier, every village in India had a gousala. Deshi cows were protected and bred for pedigree purpose (to maintain original breeds in different climatic situation)
In every aspect, the cow is beneficial to man – the milk provides the required nutrition to the entire family, natural fertilizers and pesticides are manufactured from deshi cow dung. Deshi cow urine or Go-mutra is distilled for Ayurvedic medicinal purposes.
Cow dung is also used to line the floor and walls of buildings owing to its insect repellent properties. In villages, in the cold weather, cow dung is used to line the walls of houses as a thermal insulator. The dung is used for biogas and to generate electricity and heat. The gas is a rich source of methane and is used in Rural areas of India to provide a renewable and stable source of electricity. Revert to traditional, successful, low-cost farming methods. Saving farmers from a life of hardship and debt.
One cow is able to provide food to 410,440 people during her life time, while her meat is sufficient for only 80 people. One cow is sufficient to manure unto 30 acres of land
In Vedic tradition, cows are worshipped as mothers. According to scriptures, there are seven mothers: atma-mata (one’s own mother) guroh patni (the wife of one’s teacher) brahmani (the wife of a brahmana) raja-patnika (the wife of the king) dhenu (the cow) dhatri (the nurse) and prthvi (the Earth) are all considered mothers. Just as the child feeds on the breast milk of the mother, human society takes milk from the cow.
In Vedic society, the economy was based on agriculture and cow protection. Five thousand years ago, when Krishna was personally present on this planet, there was enough milk, butter and curd. When there were festivals, the cowherd men would throw yogurt, milk, clarified butter and water upon the bodies of one another. Everyone had a sufficient stock of milk and other milk-products. Sri Krishna is glorified as the protector of the cows and brahminical culture (go-brahmana-hitayaca) The Brahma Samhita describes Lord Krishna to be tending the surabhi cows in His spiritual abode of Goloka Vrindavana, which is surrounded by millions of desire fulfilling trees. Brhat Parasara Samhita states: If a person feeds the cow with grass and water every day he will get the benefit of performing ashwamedha sacrifice. In Vedas it is mentioned that all the demigods reside in the body of the cow. So the Hindus worship the cow.