One way to reduce that practice is to simply reduce one consumption of meat/milk, no need to be fully gandhi to improve some cow’s life. You anyway can’t save the world alone.

There’s a ton of mushrooms and fabaceae, very cheap nutritious and as much delicious if you learn to cook them well (like meat). My favorite is Tempeh which combine both! And quite cheap if you make it yourself.

http://tempeh.info/