How long does it take resident dog to accept new pup?

[ThespianTendencies]

I have a 5 yo lab x, who I rescued at 11 weeks. He is gorgeous, mellow, fun and loyal. One week ago I got pup - 9 week old bichon/toy poodle x, and she is brilliant. Typical puppy of course - either asleep or charging around as if she is a wind up toy. She is obviously taking up a lot of time with house training, general supervising and such like but 5 yo is not by any means neglected. He is still getting his daily walks, fuss, equal attention (if not more!) usual play-time etc. But he is showing benign indifference to her and actually gets up and walks away if she approaches. I'm guessing this is pretty normal behavoiur but will it change? She seems to worship him yet he is so aloof! I feel sorry for them both tbh. Is there a time at which point he will accept that she is here to stay?

As long as he's not showing aggression to the pup, I wouldnt worry. I have numerous fosters coming and going, sometimes my 6.5yr old pointer x will really enjoy their company and play and allow a paw or 2 to share the bed with her, other times she's utterly indifferent, but generally once they've been around for a few weeks, there is more interaction and she seems to start enjoying their company. To many adult dogs a pup is just a juvenile pain in the butt, bug most will start to be more sociable after a while

Andara - phew! I hope so.It's hard work making sure i'm with them all the time

My 2 year old poodle was the same when we got puppy terrier. Didn't even want her breathing the same air as him. It took probably a week for him to let her sit on the floor near him and then another two weeks for him to let her lie next to him. 5 years later they're BFFs and get upset if one is somewhere without the other.

Like Adara, I foster, and one of my dogs is a real pearl clutcher at the antics of the puppies. The other usually enjoys playing with them, but is a bit freaked out at the current (very young and fluffy) pups and has only just got past growling at them when they bob around him like a pair of excited toddlers.
Give your older dog lots of space to get away from pup and remember he will growl at it at times - he's telling them what is acceptable dog behaviour

Ok. All great advice. He hasn’t growled at her....yet! If he has a valued toy I don’t let pup take it or go too near,I just tell her ‘NO’ and give her an alternative. It’s bloody tiring though!