I bought my beautiful 3 year old as a puppy it was her moms second and her dads first litter. I have had many hardships in the three years I've had her so I knew I didn't want to breed her till I was all settled.  Now her and I are doing fantastic. I would like to breed her now and I have the male picked out already. Well since she was 4months old. Now her mother became very aggressive after her first birth and it got worse with every litter. She had 4. I know that her first litter she was on her first heat and we'll trained to be aggressive in the first place. Mine was brought up with love and caring and she's just so amazing in every way. Do you think that aggressiveness after breeding will pass on to her???? If there is a possibly, what could I do to prevent this from happening???

You don't 'train' dogs to be aggressive.  The dogs that you see doing bite work and sports which involve that, are doing nothing more than playing tug (in their mind) - it is a game, to them. 

Dogs are 'aggressive' in most cases because of fear:  They perceive a person or another dog as a threat.  And we don't really want to train dogs to be afraid because it is then hard to control fear and the dog's response in the presence of what they are afraid of, becomes unpredictable - which is never something you want, in a trained dog.  It's a liability.

Fear has genetic components - a mother who is afraid is more likely to pass that trait onto her puppies.  This is partly genetic and partly due to the learning (pups whilst they are with mum see her behaviour) or due to mum's stress being passed to the pups again through her behaviour.

I haven't heard of bitches becoming aggressive in an ongoing way, as a result of being bred from... but dogs can become aggressive if they are scared enough, at any point.  (Any dog can.)

If your bitch is 3yo already and you have seen no sign of fear-based reactivity in her, then chances are she will be ok if bred from.  There's no way to tell for sure.  Of course you need to be extra-sure to choose a male who has an excellent temperament...

And please wait until the coronavirus is well and truly over, before you breed her - even if that is a further year.  There's no point waiting this long for perfect circumstances in your personal life, only to breed now - when socialisation and vet care and just about everything has been affected.

I know that her first litter she was on her first heat

No bitch should ever be mated at their first ever season, so chances are that in this case she was far too immature which affected her temperament.

Can I ask why, if she became more aggressive with each litter she had 4? I find that very strange.

From another post this is also a cross breed she is wanting to mate as well. In that case from the mixes of those 2 breeds i would not be breeding at all. It is a complete unknown entity. Is this person going to be doing all the relevant health tests for a Ridgie and a Pitbull and what responsible stud owner would allow their male who is also fully health tested be used on this mix of a bitch?

Think this post should be removed re x matings of 2 guarding type breeds.

Goodness, really?!

Ridgeback x Pitbull

what could I do to prevent this from happening???

Simple - don't breed from her.

i don't think the mother belongs to the op so they may not know why she was bred 4 times
Suejaws comments are very relevant and giving advise as to why breeding  may be unwise is better than removing the post .

Mine was brought up with love and caring and she's just so amazing in every way. Do you think that aggressiveness after breeding will pass on to her???? If there is a possibly, what could I do to prevent this from happening???

I didn't copy enough of the OPs question, she was asking about preventing any inherited tendancy in her own bitch

Definitely agree with your reply tatty ead

> Suejaws comments are very relevant and giving advise as to why breeding  may be unwise is better than removing the post .

I agree. With this in mind, can we reply to the original question please.

I would revise what I said before to say:  Why are you doing this breeding?  What do you hope to achieve by breeding this dog?  What purpose are you breeding for?

In a world where we are putting hundreds and thousands of dogs to sleep every day, just because we have surplus dogs, to deliberately bring more into the world needs very careful justification.  And many of those PTS are pit bulls or pit bull crosses, which flood shelters in the US in particular.  If you are going to deliberately bring more pit bull crosses into the world, then you need very careful justification for doing this.

And frankly I can't think of any reasons - you can't show a crossbred dog and there is no recognised 'work' such a crossbred dog is bred for.  You can't be breeding to preserve the breed - whether physically or performance-wise - because there is no 'breed', the breed of pitbull x ridgeback doesn't exist and is a crossbreed.

So we are back to - why are you doing this breeding?  Simply because you want puppies from your bitch?  That isn't a justification for doing any breeding at all, from any breed of dog - let alone a deliberate crossbreed of two breeds which often have problematic temperaments and where you know your bitch's mother had just such a problematic temperament....

Please don't.