Pet owners in Melbourne’s southeast are being put on notice after several dogs were targeted by suspected baiters.

Chunks of contaminated meat were found in a backyard in Carrum Downs recently.

It’s believed to be the third time bait was thrown over her fence.

In November last year, the female homeowner’s dog died - without the owner so much as seeing a piece of baited meat.

In the video below: Pet poisoning spike across Perth

Play Video One owner was recently threatened with a letter saying their dog would be baited. One owner was recently threatened with a letter saying their dog would be baited.

About three months later, she saw two cubes of meat in her backyard and acted quickly to keep them away from her new puppy.

But she didn’t see it happen a third time.

The small cubes had been filled with rat poison and caused the dog to become violently ill when it ate them.

Another dog owner on the Mornington Peninsula shared this photo of meat they found in their backyard. Credit: Facebook

Blood-testing carried out on Thursday confirmed the dog had ingested a potentially fatal dose of poison in recent days.

However, vets from the local clinic saved the pooch’s life, starting treatment before symptoms began based on the knowledge of the previous attempted poisoning.

However, as the Seaford Veterinary Hospital outlined on Facebook, it’s worried it may happen again.

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“We are seriously worried about a possible next time though,” it said.

“Anyone living locally is advised to be vigilant and contact their vet immediately for advice if they suspect their pet may have eaten a bait or is unwell.”

Symptoms of dog poisoning include vomiting, diarrhea (possibly bloody), black tar-like poo, high temperature, lethargy, difficulty breathing, abnormal behaviour and abdominal pain.