I have 5 male whippets and a male greyhound only 1 of which has been castrated. They live happily with 7 bitches. The only time I have had a problem id when the 2 stud dogs were younger they used to argue when the bitches were due in season. Nothing serious though just all noise and no trousers as someone siad to me today. Now they are older they are not bothered they live happily together even when the bitches are in season.
