Hi,I have a female german shepherd about 6 years old, and she is attacking other female dogs, and just female. She already killed two small female dogs, one was just a puppie. She behaves normaly with other dogs, and people. But when she smells another female dog, she is like crazy. I cannot stop it and it does not listen. She will not bite me if I move her away but that is not normal behaviour.

Otherwise I have another male German shephard, and other male dogs in neghbourhood and she is just fine with all of them. I am wondering to mate her and then afterwards to castrate her, because I will have to take her to the vet to put her to sleep, and I would like to avoid that (she killend one Yorkshire terrier puppie in fron of couple of kids).
I would appriceate any advice
Thanx
I am wondering to mate her and then afterwards to castrate her,

Mate her??? Whatever for? If it's because you think that a dog should have puppies before being spayed, that's an old wives' tale.

And you can't castrate her - she doesn't have anything to castrate. However you can - and SHOULD - spay her. In fact, that should have been done when she was five months old.
In any case, your best option is to prevent her from coming into contact with any other female dogs. Period.
Spaying may help, but I wouldn't count on it. However, it will prevent her from contracting pyrometra, which is a deadly infection that occurs when females go through season after season without becoming pregnant (unnatural for their bodies).
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Hi, I have a female german shepherd about 6 years old, and she is attacking other female dogs, and just female. She already killed two small female dogs, one was just a puppie.

There should never have been a second time. A leash and obedience training would have prevented any problems once you became aware of the issuee.
She behaves normaly with other dogs, and people. But when she smells another female dog, she is like crazy. I cannot stop it and it does not listen.

With propert training you can stop it before it starts. With proper management you can prevent it from ever happening in the first place. A leash is the first order of business.
She will not bite me if I move her away but that is not normal behaviour.

Yes, it is normal behavior. That does not mean it is behavior you must accept.
Otherwise I have another male German shephard, and other male dogs in neghbourhood and she is just fine with all of them. I am wondering to mate her

Why do you want to create another dog with her temperament? If you don't like what she is doing, and especially if you don't think she is "normal" then for heaven's sake don't make more just like her! Puppies get their temperament mostly from their mother.
and then afterwards to castrate her, because I will have to take her to the vet to put her to sleep, and I would like to avoid that (she killend one Yorkshire terrier puppie in fron of couple of kids). I would appriceate any advice

There are several thousand German Shepherd dogs without that problem that are in need of homes today. Most of them will die for no reason other than they don't have a home that will keep them. They certainly have a better temperament than your dog has displayed. So get her spayed today. There is absolutely no reason to breed this dog. And spaying her might* help. It will *not cure the problem. But there is a reason why the word "***" is used to refer to someone who is nasty and argumentative. If the person who you got the dog from had used better knowledge in their breeding you might not have the problem with her in the first place.

Diane Blackman
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I have a female german shepherd about 6 years old, and she is attacking other female dogs, and just female.

Is this new behavior for her, or has she always done this? Has anything happened recently that would make her defensive around other females? If she used to be good with all dogs, and is suddenly exhibiting this behavior, have her checked out by a vet to eliminate any medical issues that might be contributing to this.
She already killed two small female dogs, one was just a puppie.

Why was she allowed to do this? She should be on-leash, and not be given a chance to interact with other female dogs.
people. But when she smells another female dog, she is like crazy. I cannot stop it and it does not listen.

That's why you use a leash. It will help you gain control of her, while you train her to listen to you. This may be a problem that you have to manage, and she may never really be good with other female dogs again.
I am wondering to mate her and then afterwards to castrate her,

Why would you want to mate a dog with temperament issues? There is a pretty good chance that her puppies will also behave in the same way. There are plenty of German Shepherds out there with no temperament problems that are put to sleep simply because there aren't any homes for them, and you don't need to contribute to this problem.

Suja
Puppies get their temperament mostly from their mother.

First off, great post Diane. I agree about
spaying the dog and getting training ASAP.
And definitely about how many GSDs are without
homes and needing one.
The above, I was not aware of. Is there a link
you might can provide, that I could read in regards to this. It is quite fascinating.
I have been told by everyone that Blade is almost
identical in temperment to his sire. I met Athena
many times and Blade certainly does not show signs of having her temperment.
Gwen
The above, I was not aware of. Is there a link you might can provide, that I could read in regards to this. It is quite fascinating.

I don't have a handy link but the Scott and Fuller book has quite a bit of information along those lines. In terms of temperament there is a lot of disagreement about the balance of contribution between nature and nuture. It is clear, however, that both are involved. And since the mother raises them she has influence on both, while the sire does not.

Behavior Problems in Dogs by William Campbell
Genetics and The Social Behavior of Dogs by Scot and Fuller

Clinical Behavior Medicine for Small Animals by Overall

Domestic Animal Behavior for Veterinarians and Animal Scientists by Katherine Houpt
I have been told by everyone that Blade is almost identical in temperment to his sire. I met Athena many times and Blade certainly does not show signs of having her temperment.

Diane Blackman
http://dog-play.com /
http://dogplay.com/Shop /
The above, I was not aware of. Is there a ... could read in regards to this. It is quite fascinating.

I don't have a handy link but the Scott and Fuller book has quite a bit of information along those ... Fuller Clinical Behavior Medicine for Small Animals by Overall Domestic Animal Behavior for Veterinarians and Animal Scientists by Katherine Houpt

Well in Blade's case he was bottle fed quite a bit since there were 9 puppies in that litter. Three
of which had to be bottle fed. Also his breeder
did remove them from their mother around age 5 weeks. She did not let them go until 7.5 weeks of age.
Thanks for the great reading material. If only
I had more time to read. Those look like great
books.
Gwen
She already killed two small female
dogs, one was just a puppie.. But when she smells another female dog, she is like crazy. I cannot stop it and it does not listen.

Stop lying to yourself and us. You can stop it. Keep your dog away from dogs she might kill. Then work with a behavorist or trainer to train your dog to listen to you.
Lia
Having only ever had a GSD female, I'm not sure if there are noticeable differences between the males & females when it comes to temperament & personality.
I know that Bodhi is very, very much like his sire in temperament. While I have heard the statement you made, and have read it in the Scott & Fuller and the Campbell book. What I always chalked it up to was the fact that and this isn't all, by any means in Belgians there is oftentimes a difference between males & females. Generally, the males are more friendly & gregarious (for a Belgian, I'm not talking Golden Retriever here! :-)), while the females tend to be more aloof & reserved not as silly. And, from what I've heard, the 2 girls in the litter are very much like their dam in temperament. In the looks department, one girl is the spitting image of her sire in female form, the other a Mini-Mom.
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