I have a six month old beef cross calf ,out on pasture, also being fed grain. Found it tangled in the fence. When it was removed it walked straight into another! Very disorientated, wont eat, walks into things, circles, breathing okay at first. One hour later tries to stand but tips over, eyes rolled back, breathing shallow and rapid, yet seems alert, bellers when others are around. HELP? Does this sound like it could be contagioous to the rest of the cattle? Maybe something spread by ticks?