hi everyone I'm needing some advice.
last night my ten month old bully went for my twelve year old border collie not ones but five times
this is not at all like her and she has never done anything like this before not even a growl.
now my border collie is backing of from her ever since my bully was tiny my collie has always acted like her mum cleaning her and telling her of when needed but never hurt her.
I'm thinking my bully is trying to become leader.
now I'm a little worried she may try this on my children as they have always come in and give her a hug now i find myself wary and am telling my children to leave her alone. i love her to bits and need any advice on how to correct this.
it seems to be around her bed area like she is protecting something but their is nothing in their except her cushion.any advice please.

When you say 'Bully' do you mean bull mastiff, bulldog, bull terrier, staffordshire bull terrier - they all are often refered to as Bully and all have different 'personalities' - it might just help people in giving you the right advice which can sometimes be specific to the breed :)

She may be coming into season and that is the reason for her aggression.  Have you noticed any other mood changes i.e. off her food. 

Annie

sorry she is a bullmastiff she finished her first season six weeks ago so i dont think its that.

I wonder if she may be having a phantom pregnancy?

Annie

i have been searching on the net and her behaviour seems to be pointing to a phantom pregnancy .
so what can i do to help her i will remove all toys and im going to keep my children away from her bed(as this is where all the drama seems to be)and act normal with her is their anything else i should look out for or anything else i could do for her i dont want to have her spayed .

Why don't you have a chat with your vet.  They may be able to advise you.  I don't have any experience of this sorry but I'm sure your vet will help.

Annie

hiya.
i also have a bully. could this not be just like a teenager thing? as i have heard of them going through this for quite a while our dog snarled at a bitch yesterday which is very abnormal for him, he is 14 months old.i have just put it down to him and his hormones as somene told me that they can go through this until they are 18 months old , so i am just gonna watch him now , hopefully until it passes. fingers crossed eh? let me know how you get on but it really takes you by surprise dosent it? esp when they are normally so good?
pam

hi over the weekend i had a chat with breeder and she says its definately a phantom pregnancy.
ive taken all her babies away(her toys) and replaced them with a kong she hasnt got milk yet but her teats are swelling.
poor thing is very jumpy at the slightest noise and she is still protecting her bed but not with us just the other dog (totaly natural behaviour as she is protecting her so called babies and being a good mum  .the breeder recon we might just have to ride it out as she could go the cycle of eight weeks with her hormones.

oh my goodness, bless her. is this her first season? i also have a little bullie who is 6 months old. when do they usually have their first saesons etc and how long does it last for, poor little darling eh?

yes it was her first season just before nine months it lasted about 2 weeks i think.
must be tough on her as she is only a babie herself poor thing all those hormones.

Seasons last an average of 21 days, though it's worth keeping a careful eye on them for another week afterwards. Successful matings (resulting in pregnancy) can take place any time from about day 5 through to day 20.