There is no scientifically proven perfect handover birthday for every puppy.
The evidence supports avoiding unnecessary very-early separation, allowing appropriate interaction with Mum and littermates, and actively using the puppy's first months for positive socialisation, human interaction, gradual independence, handling, environmental exposure and early training.[1][2][3]
At Bakundu Basenjis, that is why we don't treat a puppy reaching a particular birthday as an automatic collection date.
Our normal handover window may be around 10–12 weeks, but some puppies may benefit from staying with us until 14–16 weeks while we continue their individual development with our breeder, veterinary and puppy-training team.
Our objective isn't to produce a perfectly trained puppy.
Our objective is to give each puppy the strongest practical foundation we reasonably can before asking them to leave their mother, littermates, breeders and everything they have known since birth.
Our promise is not a particular age.
Our promise is preparation.
Key takeaways
- Eight weeks is a minimum threshold, not a scientifically proven perfect handover age for every puppy.
- In NSW, puppies cannot simply be rehomed whenever a breeder chooses. NSW rules establish an eight-week minimum threshold for sale or transfer.[4][5]
- Research comparing puppies separated very early from their mother and littermates has identified potential health and behavioural disadvantages associated with early separation.[6][7][8]
- Removing a puppy from its mother at six weeks is not necessary to create a strong human bond when puppies already receive regular positive human interaction.[6][7]
- The first roughly three months of life are particularly important for socialisation and habituation.[2][3][9]
- Staying with the breeder longer is not automatically better. Those additional weeks need to be actively used for development.
- Socialisation is not about meeting the maximum possible number of people, dogs or environments. Experiences should be safe, positive and appropriate to the individual puppy.[2][3][9]
- Puppies can remain with Mum and their littermates while simultaneously learning independence.
- Crate familiarity, individual rest, handling, toileting routines, transport, human engagement and short age-appropriate periods of independence can all begin before handover.[9][10][11]
- At Bakundu, we increasingly assess puppies as individuals rather than treating an entire litter as developmentally identical.
- A puppy staying until 14–16 weeks is not simply “waiting to be collected”. Its programme becomes increasingly tailored to that puppy and its future family.
- Longer isn't automatically better. Better preparation is better.
So, what is the best age for a puppy to leave its breeder?
There isn't one age that research has established as optimal for every puppy.
Eight weeks is widely used as a minimum rehoming age, but a systematic review of canine socialisation research notes that eight weeks should not be mistaken for a scientifically established perfect age for every puppy. Development can vary, and the quality and timing of social experiences matter.[12]
In NSW, there is also an important distinction between a legal minimum and a developmental optimum.
NSW Government guidance establishes an eight-week minimum threshold for puppies being sold or transferred.[4][5]
That tells us when a puppy cannot legally be sent home.
It does not tell us that every puppy becomes developmentally ready the instant that threshold is reached.
For us, the more useful question is:
Would this individual puppy cope reasonably well if everything familiar changed tomorrow?
Because moving home is an enormous event for a puppy.
Its mother may disappear.
Its littermates disappear.
Its sleeping environment changes.
Its humans change.
The smells change.
The toilet area changes.
The sounds change.
The routine changes.
The rules change.
Potentially even its food changes.
Age matters.
But so does preparation for that transition.
Can a puppy leave its mother at six weeks?
For a Bakundu puppy in NSW, six weeks is not an appropriate rehoming age.
Beyond the current NSW minimum-age requirements,[4][5] there is also research suggesting caution around unnecessarily early separation.
A frequently cited study by Slabbert and Rasa directly compared puppies separated from maternal contact at six weeks with puppies retaining maternal contact until 12 weeks.[6]
The six-week separation group had poorer physical condition and weight gain, and the study reported greater disease susceptibility and mortality in the shorter maternal-contact group.[6]
Importantly, keeping the puppies with their mothers longer did not significantly impair their ability to bond or socialise with humans, where puppies were receiving daily human interaction.[6]
A Purdue University welfare review discussing weaning and separation reaches a similar practical point: weaning is a gradual developmental process rather than simply a moment when a puppy changes from milk to solid food.[7]
So:
“The puppy eats solid food” does not mean “the puppy no longer benefits from its mother, littermates or continued developmental support.”
Another observational study involving 140 adult dogs found that dogs separated from their litter at approximately 30–40 days showed higher rates of several owner-reported behaviours than dogs separated at around two months, including destructiveness, excessive barking, fearfulness on walks and noise reactivity.[8]
That study has important limitations, including differences in the dogs' sources, so it should not be interpreted as proving a precise ideal handover age.
But together, these sources give us good reason not to rush very young puppies away from their early social environment without a strong reason.
Does a puppy need to leave early to bond with its new family?
The available evidence does not support the idea that removing a puppy from its mother at six weeks is necessary to create a strong human bond.