Pet knowledge

Introducing a second dog: prepare for life together

Plan the first meeting and the days at home together. A friendly walk is a useful start; sharing a home also brings food, resting places and your attention into the picture. Decide beforehand where each dog can spend time undisturbed and who will help with introductions. You can then concentrate on the dogs instead of trying to organise everything while they are excited.

Adult yellow Labrador Retriever sitting in green grass — Photo: AS Photography · Image source · Pexels LicenseIllustrative photograph of a Labrador. It does not show a documented introduction or establish an individual dog's suitability for living with another dog.

Choose a companion your dog can live with

Observe whether your dog seeks other dogs out or prefers space after a brief meeting. A dog that enjoys playing outside still has to adjust to sharing a home. Compare the dogs' activity levels, play styles and need for rest. An excitable puppy may be too much for a quiet adult.

Ask the rescue centre or previous owner about actual encounters and known difficulties. Arrange supported meetings before deciding. Also allow enough time, space and money for two pets, including opportunities to walk and spend time with each dog separately.

Sources for this section: Introducing dogs · PDSA

Prepare a separate space for each dog

Give each dog a separate area with a comfortable bed and water. Both need somewhere to rest without the other following them. Put valued chews and toys away before shared meetings; they can be available in the dogs' separate spaces.

Before the move, ask your vet whether both dogs' health checks and protection against infectious disease are appropriate. This helps when a dog's history is unclear. Let the dogs' responses guide the process. Adapt the plan whenever either needs more space.

Sources for this section: How should I introduce my new dog to my existing dog? · RSPCA Australia

Begin outside with room between the dogs

Choose a quiet place away from home, where neither dog has a feeding or sleeping area to protect. Each dog has an adult handler and a lead. Start walking in the same direction with space between you. Let the dogs sniff and explore their surroundings.

Move closer only while both stay relaxed and can turn their attention back to their handler. If either pulls hard towards the other or looks worried, increase the distance. Physical contact is not the goal. Several short, calm meetings may be a more suitable start.

Sources for this section: Introducing your new dog or puppy to your current dog · Dogs Trust

Keep greetings brief and voluntary

A loose lead gives your dog more freedom to move than a tight one. Practise calm lead walking before the meeting. When appropriate, allow a brief greeting and then move on instead of holding the dogs face to face.

Do not push either dog into saying hello. Moving away is also part of an interaction and must remain possible. If one dog already shows marked fear or aggressive behaviour during dog encounters, arrange help from a qualified behaviour professional for the introduction. Repeating difficult encounters on your own is not a substitute for that assessment.

Sources for this section: How to introduce your dog to other dogs on walks · Battersea, Introducing a new dog to an existing dog in the family · Battersea

Reduce competition when you arrive home

If the dogs need to travel home by car, keep them separated. Arrange the arrival so both have room and do not have to squeeze through a narrow doorway together. Keep food and valued items out of reach at first.

Feed them in separate rooms, making sure the quicker eater cannot reach the other bowl. Keep your resident dog's routines and give them individual attention too. One friendly evening is not enough reason to leave the dogs alone together. First observe how they handle different situations around the home.

Sources for this section: Introducing your dog to the family · Blue Cross, Introducing a new dog to an existing dog in the family · Battersea

A puppy needs help taking a break

A puppy may want to keep playing when the adult wants to rest. Watch whether both can disengage, rather than simply noting that they are playing. Call the puppy back in good time and offer another activity in their own area. The older dog needs an undisturbed retreat.

If play becomes too boisterous or either dog looks worried, take a break. Use a suitable barrier and engage the puppy with you. Ask your vet which meeting locations are appropriate while the puppy's vaccination protection is still being established.

Sources for this section: Introducing your puppy to your older dog · Blue Cross, Puppy and dog vaccinations · Blue Cross

Notice tension before it becomes a confrontation

An encounter can be too much without barking. Turning away, freezing, a tense body or repeated lip licking can indicate discomfort in this setting. Read them in context: licking lips after a treat is different from doing so while trying to escape another dog's attention.

Do not wait for the other dog to notice these signals. Increase the distance and let both settle. Make a note of what happened immediately beforehand. Recurring patterns help a professional adapt the introduction to both dogs.

Sources for this section: Why dogs get scared or frustrated and how to help them · Dogs Trust

Separate safely and get help when conflict occurs

Do not leave dogs to settle a fight themselves or punish growling. Create distance and use a solid barrier when safe. Do not put your hands between fighting dogs. Arrange prompt veterinary assessment after a bite, even when the visible wound looks small.

Keep the dogs apart while you arrange an assessment. With repeated conflict, your vet and a qualified behaviour professional can investigate possible pain and identify triggers. Further meetings need an individual plan. Living together must be safe for both animals.

Sources for this section: Signs of aggression in dogs and what to do · Dogs Trust, Wounds and skin injuries · PDSA

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