Warning: This story comprises photographs that some readers could discover distressing.
Peter Nicholl, a vet at Earlwood Animal Hospital, eliminated the suspicious merchandise from the animal, which ingested it at Bardwell Valley, within the metropolis's south, this week.
Nicholl mentioned he has since been made conscious of the same incident round "eight kilometres away" in Sydney Park, within the Inside West.
He fears a inexperienced substance discovered contained in the sac, which seems to be an animal half, could also be toxic - and will have been left intentionally.
"For the time being I might not be strolling my canine off lead," he instructed 9news.com.au, including the canine he handled made a full restoration.
"The canine had swallowed it entire and the proprietor acquired in early sufficient.
"We have been in a position to make it vomit and it hadn't been digested.
"We do not know if there's any poison in them, it's totally possible that there's."
Nicholls mentioned it is unlikely affirmation will come, as "toxicology on issues like that is extremely costly".
"In the event that they need to take a look at for a number of issues it may price many 1000's of dollars to take action," he mentioned.
"Folks should acquired to bear in mind and ensure canines are on their lead, so they do not have an opportunity to go and ingest them.
"And hold your eyes out, the canine will discover them earlier than you'll."
This may very well be one of many subsequent animals to go extinct
Nicholl mentioned if a canine does eat one of many objects, time is of the essence.
"You will have lower than an hour (earlier than digestion begins)," he mentioned.
''As quickly because it occurs, it's best to try to get to one among your native vets.
"If none of these are open, it is late at evening, it's essential get to one of many specialist centres.
"Vets have a drugs they'll administer to the canines to make them carry it up."
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