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…The community in which Krishna preferred to belong was Vaisya community, because Nanda Maharaja happened to be a Vaisya king, or landholder, and his main business was cow protection. It is understood that he had 900,000 cows and Krishna and Balarama used to take charge of them, along with His many cowherd boy friends, and every day, in the morning He used to go out with His friends and cows into the pasturing grounds.
We have to maintain the animals throughout their life. We must not make any program for selling them to the slaughterhouses. That is the way of cow protection. Krishna by His practical example taught us to give all protection to the cows and that should be the main business of New Vrindaban. Vrindaban is also known as Gokula. Go means cows, and kula means congregation. Therefore the special feature of New Vrindaban will be cow protection, and by doing so, we shall not be loser. In India of course, a cow is protected and the cowherdsmen they derive sufficient profit by such protection. (Letter to Hayagriva June 14, 1968)
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The Hare Krishna Movement 