my friend's setter has jush had her first litter of pup's. he went to check her on friday morning as normal (she was dew on sat)and had given birth to 2 pups and were alive, he then noticed another one that had been beheaded, by the end of the day she had another 3. all seemed fine and well, untill later on that night when he went for another look and horror at the sight of 3 of the 5 had been killed sense he had last checked them. he is needless to say gutted, and asked me to try and find out if this has happened to anyone and has anyone got a theroy why the mother would have killed the pup's