Hi All. I am hoping to get some useful advise from you wonderfully helpful peeps!
I am getting really worried about my 7 puppies weight gain.
They are a largish gundog breed and were born early (day 58) at between 300 and 410g.
Now at 15 days they still weigh a lot less than I'd have expected by now. The smallest 2 are around 650g. the others range from 750 to 1000g.
They are all equally active, 'walking', eyes open, alert etc.
They all wake up for a feed at the same time and feed with the same gusto, then sleep for the same amount of time.
None of them will entertain a bottle.
Although the bitch does not look to have very large boobs, when the pups have finished feeding, she still appears to have milk left.
She is still in with them pups all the time other than 2 half hour breaks (her choice).
Any thoughts. Should I just leave them be, or do something.

Any suggestions anyone?

I'm not a breeder but have read that people talk about %weight gain.  Do you know what that is?  It could be helpful for the experienced breeders on here to give you an assessment.
I think they might also be suffering from some ungrateful remarks, but I'm sure will be back to help you- they've never let me down yet & that's on non-breeding topics about at least one BYB bred dog!
(My newest pup is kosher though)

Hey, I'm in a similar position as you (have a 1st litter of 6, 14 days old today) so not really in a position to give much in the way of advice.  But everything I've read says they should have doubled their birth weight by 10 days.  One of mine was lagging behind so I just made sure she was on the boob every 2 hours and things picked up.  Hopefully someone with much more experience than me will help.

Have you got a breed mentor that you could ask or the stud dog owner?

Quite a good few posts on here re weight gain. Brainless gave a great insight into this on 9ne 9f them.

As long as they are gaining steadily I honestly would try not to worry too much. It looks like they have all doubled their birth weight now, even if it's day 15 rather than day 10, and if they are content, active and alert etc, it sounds like they are doing fine. Have you got a mentor who could pop round and actually view the puppies just to make sure?

Sounds absolutely fine to me.  Size of a bitches milkbar has little to do with amount of milk.  I had a very flat chested bitch rear 7 pups with them gaining really well.

As long as the rate of weight gain is slowly increasing and pups happy then all is well.  If the rate they are gaining at starts to level off/drop I start introducing weaning foods any time after their eyes open, but normally start at 18 days so that by 21 days they are having 4 taster meals a day (I like them on solids when I worm).

I have never ever had pups double their birth weight by a week sometimes by 10 days.

Mine are mostly born at 12 - 16oz (though I have read in book of the bitch 10 - 12oz as average) and if on larger side they loose weight the first day, regain second or third and then gain after that, at about an ounce a day.

So I am happy with 4 - 7 ounces first week, then expect at least an ounce a day second week, and it increases after that to about a pound a week to five weeks.

I have had some really greedy litters with heavy pups, and have had less hungry slower gainers, and have found this had little to no effect on eventual adult size and that most pup were similar weights by 8 weeks (9 - 11 pounds though have had some heavy weights.

They're easily old enough to be weaned. My own litter is 13 days old today. There are 11 of them, the smallest weighed 360 g when born, the largest 470 g. Today the smallest weighs 730 g, the biggest 1.12 kg. Mum doesn't bother feeding them much and they have been screaming a lot and weight gain has slowed down, so I started them on solids yesterday aged 12 days. The noisiest ones, and the smallest one, were very greedy immediately. Some of the others didn't bother, but today all have eaten. Note I've not done anythign else but put food in front of them, so it's the pups' own choice what to do. I've had a litter like this before, only 7 pups then but one kept screaming and screaming so I put food in front of them at 13 days and that settled her and she ate immediately.

> Note I've not done anythign else but put food in front of them, so it's the pups' own choice what to do. I've had a litter like this before

Ditto, started one litter off at 12 days.

Not sure how you are on excel, but we created a puppy weight sheet, using formulas to figure out their day by day gain in % and their birth to now gain. Enabled us to see who was gaining the most and who was gaining the slowest. Quite complex to set up but if you google it it's worth doing as we found % weight gain per pup was more useful for comparing and contrasting them against one another.

Thank you wonderful people for the advise (and comfort!). It is very much appreciated.

Firstly, don't worry as others have said as long as puppies feel round tummied, warm and content then they are fine, if you equate it to human babies it's easy to get into the "are they smiling, standing, walking, using the potty" mentality when in reality it will all come in time. Small puppies are not unhealthy puppies and some breeds are smaller at birth than you would think, my small/ medium hound puppies were almost as big as my medium/large pastoral ones at birth. Start offering them food every day, I usually try raw or cooked meat at room temperature before they have the milk bar from mum and when they are ready you will know as they really want to eat it. Then build them up gradually onto your chosen diet, I let Mum visit as often as she wants which tends to drop down to flying visits at 5/6 weeks and you can't go far wrong. Enjoy your babies you lucky person