One of my female poodles accidently got in with another females litter and killed a 3 day old puppy. Should I breed this fmeale?

I have three litters, my one little girl has never had pups but always seems very interested in the pups. We keep thinking she would love to have her own, we let her smell them sometimes while we hold them of coarse, just because she seems so curious. I have these pups in my family room all three litters.(usually have no more then two). Of course I don't let them get at each others pups, but this one time I was checking the one litter as they were only 3 days old, the phone rang and I failed to close the cage door ,my sweet litter girl that I love so dearly and has never had pups got in and helped herself to a pup brought it to me and it had holes in it where she had bite it. OH!!!!!!!!!!!! I was sick!! and mad at myself too.

My question is what caused her to do this? She is three years old and has seen many lupus and is always interested,I never ever thought she would hurt them,but never took the chance either.Boy when she could though she got ahold of it.My other bitch was having her pups we put one in the incubate to keep it dry and warm and this same female got it out when we walked away and it had a hole in it's stomach too of course it died.



Should I not breed her? She has a very good disposition and so smart. I am so sick over this,never ever had this to happen.



Could you give me some answers to this awful situation?



Thank You
S B