Warmer weather brings increased risks to dogs

Dog owners are being warned to keep their pets away from highly toxic karaka berries and algal blooms this summer, and to contact their veterinarian immediately if they think their dog has swallowed them.

The New Zealand Veterinary Association Te Pae Kīrehe (NZVA) encourages owners to walk dogs on a leash if toxic algae or karaka berries could be in the vicinity as both can make dogs incredibly ill.

NZVA head of veterinary services (companion animals) Sally Cory says at this time of year pets are spending more time outdoors and have more access to things that can harm them.

“Unfortunately, dogs are attracted to karaka berries and toxic algae because of the strong smell.

“Even small amounts can be dangerous, so if you think your dog has eaten karaka berries or toxic algae, call your veterinarian immediately and they will advise you what to do next,” she says.

The karaka tree fruits annually between January and April, dropping orange berries, which may be poisonous to dogs. Consumption of the berries by canines can lead to impaired neurological function, respiratory failure, and even death. Clinical signs can be delayed from between 24 hours and a week or more following ingestion.

Toxic algae, also known as cyanobacteria, appears in rivers and lakes as black, green, or brown slime on rocks, and as brown or black ‘mats’. Symptoms can develop within 30 minutes and include panting, lethargy, muscle tremors, twitching, and convulsions.

Cory advises dog owners to keep an eye on information provided by local councils as signage may not always be installed at parks, rivers, and lakes.