haha. no.
we revere the cows because they give us (as in ancient hindus) many resources, they are man's best friend in india, wel at least for the worker (needs to carry heavy loads, or to plow) we give respect to all animals. not only cows, but ox too. like at matu (cow/oxen) pongal (harvest thanksgiving) we thank the ox for thier labor.
most importantly, cows give us milk, which is very important (for obvious health reasons).