Maybe I've asked this before but I have to ask. Through the years I've heard breeders claim that kittens get sick from the milk their mother produce when she's in heat. This leads to breeders putting their queens on BC when the kittens are 2-4 weeks old just to prevent the queens from going into heat and getting sick kittens (kittens that vomit or have diarrhea). I've never experienced this. My queens usually go into heat when the kittens are 4 weeks old and not once have I had a kitten get sick during that period. In fact I've never had a kitten with diarrhea or that vomits. My breeder friends seem to have the same experience as me. So, what's your experience? Does the milk "go bad" when the queen go into heat?