Raw fish like salmon, trout, steelhead, sturgeon, and sculpin can cause deadly Salmon Poisoning Disease (SPD) in dogs if they carry the Neorickettsia helminthoeca bacteria, often transmitted by a fluke parasite; this disease is fatal in most untreated dogs, so cooking fish thoroughly is crucial to kill the parasite and protect your pet.
Don't feed raw fish to your dog. Cook fish thoroughly or deep-freeze it for a minimum of 2 weeks to destroy the parasite before feeding it to your dog.
Types of Fish Dogs Cannot Eat
Any large fish with a long life span is not safe for your dog to eat. These large fish—such as swordfish, tilefish, king mackerel, and albacore tuna fish—accumulate heavy metals; the high amounts of mercury in their system make them dangerous for dogs.
Common signs include lack of appetite, vomiting, diarrhea (which may include blood), fever, weakness, enlarged lymph nodes, weight loss, discharge from the eyes or nose, increased respiratory rate, increased heart rate, muscle tremors, and seizures. If the infection is not treated, most dogs will die within two weeks.
In salmon poisoning disease, signs appear suddenly, usually 5 to 7 days after eating infected fish. In some cases, however, the onset of signs may take as long as 33 days. Signs usually continue for 7 to 10 days before culminating in death in up to 90% of untreated animals.
Recognising symptoms of poisoning in your dog
Takeaway. While dogs can become sick with salmonella, it is relatively uncommon. However, symptoms can be severe and, in some cases, fatal — particularly among older and younger dogs. So it's always essential to take steps to minimize infection.
Laxatives and medications used to empty the bowels may be recommended in some instances to help remove the poison from the gastrointestinal tract. If the poison cannot be physically removed, sometimes activated charcoal can be administered by mouth to prevent further absorption by the gastrointestinal tract.
Ciguatera fish poisoning (CFP) is the most common, non-bacterial, seafood illness. The condition is caused by toxins from the microalga Gambierdiscus, and can lead to diarrhea, paralysis, and, in worst cases, death.
Chocolate, grapes or raisins, and anything with xylitol are among the most common culprits that cause pet parents to visit the emergency room.
Common toxic foods for dogs
To cook fish for dogs, steam, poach, or bake fresh fish without oil, salt, garlic, or spices. Ensure all bones are removed. Cook until the flesh is white and flakes easily. Serve in small portions.
A dog with salmon poisoning disease may experience loss of appetite, vomiting, diarrhea, weight loss, weakness, fever, enlarged lymph nodes, and an increase in discharge from the eyes or nose.
Many poisons are designed to act quickly, so your dog could become very unwell within an hour of eating it, or sometimes sooner. If your dog has eaten an anticoagulant rat poison, signs may not show until around 3-5 days.
Types of Fish That Aren't Safe for Dogs
Atlantic Mackerel: Compared to other fatty fish, Atlantic mackerel contains the most significant amounts of EPA and DHA. Furthermore, mackerel contains considerable Vitamin D, making it an excellent addition to a raw diet. Atlantic Herring: High quantities of EPA and DHA are also found in Atlantic herring.
Examples. Species of puffer fish (the family Tetraodontidae) are the most poisonous in the world, and the second most poisonous vertebrate after the golden dart frog.
Signs or symptoms of poisoning may include:
In most cases, people with food poisoning get better on their own without medical treatment. You can treat food poisoning by replacing lost fluids and electrolytes to prevent dehydration. In some cases, over-the-counter medicines may help relieve your symptoms.
Symptoms that warrant urgent veterinary care include repeated vomiting, diarrhea with blood, muscle tremors, unusual behavior, extreme low energy, and pale or blue-tinged gums. Rapid breathing, excessive thirst, or loss of coordination also signal potential poisoning.
Typically, mild cases of poisoning have high recovery rates. In severe poisoning cases or cases where treatment was delayed the chance of recovery is extremely low. When pets do recover from severe poisoning there can also be long-term damage to their overall health.
If your pet has ingested a poison, try to rinse or wipe out the mouth with a damp towel/flannel. Do not give your pet anything to eat or drink before speaking with the Animal Poisons Helpline or a vet.
If you know your dog has ingested raw fish and it exhibits any of the symptoms listed above, notify your veterinarian immediately. If identified in time, salmon poisoning disease is treatable. A helpful part of the diagnosis is telling your veterinarian that your dog ate raw fish.
The body has many natural defenses against salmonella infection. For example, strong stomach acid can kill many types of salmonella bacteria.
The most common signs of salmonella in dogs are vomiting or bloody diarrhea. If you notice either (or both) of these, it's a good idea to get your dog to the vet as soon as you can. The normal temperature of a dog is around 99.5-102.5F degrees (compared with people, who have a normal temperature range of 97.6 – 99.6F).