How does littermate syndrome develop?

Also known as littermate dependency, this term refers to behaviors that develop when two puppies from the same litter are raised together. Behaviors include attachment to each other, difficulty bonding with humans and other animals, aggression, separation anxiety, and reduced independence in training.
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At what age does littermate syndrome start?

At what age does littermate syndrome start to develop? You can usually expect signs of littermate syndrome to develop when the puppies reach roughly eight to ten weeks of age. This can vary somewhat, as it may only become apparent when pups are taken home for the first time.
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What causes littermate syndrome?

As mentioned in our “Picking a Puppy” article, littermate syndrome is a serious behavioral condition. The condition develops when two young dogs end up bonding too tightly with each other. It may sound ideal when dogs are such close friends, but major issues can arise down the road.
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Does littermate syndrome ever go away?

The short answer is no, littermate syndrome does not go away on its own. But the good news? You can address the behavioral issues that arise from two sibling puppies being raised together.
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What breeds get littermate syndrome?

Littermate syndrome affects dogs over 8-10 weeks of age, which is typically when young puppies join their forever homes. Dachshunds, Terriers, Border Collies, and Shepherds are often cited as having a high propensity for littermate syndrome.
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The challenges of raising littermates

Is it possible to avoid littermate syndrome?

Can littermate syndrome be prevented? Theoretically, yes, however it's so difficult as to be nearly impossible in practice. Remember, even experienced guide dog puppy raisers aren't expected to be able to prevent this issue from developing.
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How to avoid littermate syndrome in cats?

How to prevent “littermate syndrome” symptoms in cats
  1. Consider adopting a kitten in foster care. ...
  2. Socialize kittens early and reward positive experiences. ...
  3. Boost their individual independence. ...
  4. Create an environment that meets the needs of every cat. ...
  5. Gradually introduce kittens to other cats.
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How to break littermate syndrome in dogs?

Separate littermates as much as possible at the start

To prevent behavioral concerns, Johnson recommends doing even basic activities around the house separately. “For example, you may feed the puppies in separate rooms to allow them the time and space to eat — and to prevent food-related aggression.”
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What age gap to avoid littermate syndrome?

Unfortunately the risk of littermate syndrome is pretty high until puppy is 1.5-2 years old. It's good to make sure they grow up as the only puppy for that period of time, and give them dedicated training. Introducing another puppy at this phase can make them over-rely on each other and effect their development.
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Should dogs with littermate syndrome be separated?

During my appointment with Leslie, we determined that the best course was to re-home one of her twelveweek -old siblings. Dunbar agrees that it's often best to separate littermates, especially if symptoms appear early, so that each has a chance to develop normally as an individual.
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What do vets say about littermate syndrome?

These dogs can develop issues due to what experts refer to as littermate syndrome. The scientific literature on littermate syndrome is nonexistent. However, the anecdotal evidence observed by veterinarians, shelters, and behavior specialists is overwhelming.
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Will neutering help littermate syndrome?

So, what about neutering and spaying to help with this? If you have two male siblings, if you castrate both dogs, it can make things even worse. It's because you have to neuter the less dominant male, when you castrate both, it changes nothing. This is because they will still fight about position, rank and dominance.
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Do dogs recognize siblings from same litter?

Puppies 4-5.5 weeks old can recognize their siblings and their mother, and their mother can recognize them. Two years later, mother dogs could still recognize their offspring, and their offspring recognized them. However, the offspring could not recognize their siblings unless they had been living together.
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How to tell if your dog has littermate syndrome?

Some of the signs of littermate syndrome include:
  1. Fear of strangers (people and dogs)
  2. Fear of unfamiliar stimuli.
  3. High level of anxiety when separated even for a short time.
  4. Failure to learn basic obedience commands.
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Is it smart to get 2 dogs from the same litter?

"Owners often feel like homing two puppies from the same litter is a safe way to ensure that the dogs will get along and not be lonely, however it can actually be detrimental to both dogs' development at a young age." Puppies learn a lot from each other in the first few weeks of their lives.
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Should littermates sleep together?

To ensure that each puppy reaches their potential, everything must be done separately: walking, training, eating, and sleeping. If the pups are very young, sleeping together may be fine for a while as long as they get enough one-on-one time with you. But before long, they should sleep in their own crates.
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Can littermate syndrome be prevented?

To prevent littermate syndrome, dog owners should start separate training classes, socialization and play and walk outings as soon as they get the puppies home, advises Grottini, and these should continue until the dog is fully mature.
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Is there a cure for littermate syndrome?

Since littermate syndrome is a set of behaviors, not a scientifically proven condition, there's technically no cure. Rather, you can treat or manage the behavior in each dog individually, consulting your vet and a dog trainer for support.
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Can littermate syndrome happen later in life?

Littermate syndrome refers to the range of psychological and behavioural issues that littermates develop as a direct result of being raised together through adolescence or into adulthood.
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Do dogs get sad when separated from litter?

Separated From Their Litter

It's not uncommon for a puppy to be depressed after leaving their litter.
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How do you successfully raise a littermate?

So, what do we do? To help prevent troubled waters with littermates, make sure to work on having lots of separation from each other - solo training and playing times with their humans and social experiences with other pets/people.
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How long to keep littermates separate?

Most puppies should remain with their littermates until at least 8 weeks as there are many lessons that they learn during those weeks, both from the mother as well as from their littermates; most reputable breeders won't let a puppy leave until they at 10--12 weeks.
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How do you train against littermate syndrome?

Put one in a sit/stay in one room, have someone there rewarding the staying, and have the other come with me and do sit/stay in another room. Bring them back together, rinse repeat. You want them to respond to you as individuals and rely on their person than relying on each other for what to do.
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Can littermate syndrome happen with dogs from different litters?

Even non-sibling puppies can exhibit Littermate Syndrome when placed together. Professional trainers recommend against getting two puppies within six months of one another, because the risks are just too high.
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Can littermate syndrome happen with unrelated dogs?

This pattern is believed to occur with any pair of puppies or dogs that are raised together at the same time, whether they are siblings or not. The concept of littermate syndrome is a topic of discussion among dog trainers, shelter personnel, breeders, and other animal professionals.
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