The interesting thing to me, and I am currently struggling with this as well, is that if we are going to consume milk/cheese/yogurt there are going to be some unneeded offspring produced in the process. Likewise, if we eat eggs there is going to be a lot of male chicks who are either raised for meat or, more commonly, thrown out. Is it better to put the little male chicks, kids, calves in the dump as waste or raise and eat them? Certainly there are not homes for all these animals as pets! At least as food their lives have a purpose. Certainly I love my female goats and chickens, but the males that had to go somewhere as byproduct of their production weighs on my mind.
The only results I can come up with are being vegan or coming to terms with the meat production side of livestock. Being ovo-lacto-vegetarian, while tasty and healthful, is not a tenable situation when it comes to animal rights.