The cow is giving milk and the bull is working for you, and then you slaughter them? What is this philosophy?

N98:TQE 2   Matter, Spirit, and the Controller of Both       books
It is not that national leaders should be concerned only with human beings. The definition of native is "one who takes birth in a particular nation." So, the cow is also a native. Then why should the cow be slaughtered? The cow is giving milk and the bull is working for you, and then you slaughter them? What is this philosophy? In the Christian religion it is clearly stated, "Thou shalt not kill." Yet most of the slaughterhouses are in the Christian countries.
   This is all a misunderstanding of spiritual life. Every animal should be given protection. That is the Vedic idea. Otherwise, by killing, killing, killing, you become entangled in sinful activities. Therefore now the women are killing their own children in the womb. This is going on.
   We cannot be happy in this way, because we shall become more and more entangled in sinful actions and their resultant reactions. Then we will have to take various types of bodies, perpetually.
   Therefore, we have begun this Krsna consciousness movement. By taking advantage of this movement, people can awaken to God consciousness, stop sinful activities, and become purified. Without becoming purified, one cannot understand God.