Research Notes

Find the latest dog, cat and companion animal health scientific research and news from the editors of Petfood Industry magazine to help pet food manufacturers improve pet health through pet food ingredient, vitamin and mineral analysis as well as information focusing on pet diseases and palatability issues. Register for free to access premium content.

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Antibiotic-resistant germs grown from pet food in Europe

Antibiotic-resistant Enterococcus bacteria, including vancomycin-resistant strains, most frequently infect hospital patients and people with immune system issues.

Microbiologists grew antibiotic-resistant Enterococcus bacteria found in pet foods bought in Europe. Although pet food hasn’t been documented passing these germs to people, a reservoir of antibiotic resistance genes could be created in the gut of dogs.


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Shark DNA found in 32 cat foods: Sheba, Whiskas, Kit Cat…

The CITES Appendix II listed silky shark (Carcharhinus falciformis) was the second most frequently encountered species in the pet foods.

Scientists suggested that endangered silky sharks and other species ended up in pet foods. However, the researchers couldn’t determine the route by which the shark meat made its way into the pet food supply chain.


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Retest of soy, corn and peanut byproducts for pet food

Researchers tested soy flakes, peanut flour, soybean meal and corn gluten meal for the digestibility of the amino acids contained in the byproducts.

Byproducts from seeds and grains have traditionally been used in pet foods as sustainable, inexpensive and protein-rich ingredients.


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Plant oils in pet food: olive, soy, coconut and sunflower

From a pet food perspective, the palatability of diets containing sunflower oil is well liked by dogs, but not as well received by cats.

Several types of plant oil have been covered in Ingredients Issues and evaluated for their use in dog, cat and other pet food formulations


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No confirmed human disease from raw pet food worldwide

The scientists’ findings cast doubt on a basic tenant of raw pet food use, that raw pet foods should be kept away from people’s food spaces and utensils.

Scientists classified eleven households as having experienced “probable” transmission, and 20 households experienced “possible” transmission.


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Silkworm may be novel, insect-based pet food ingredient

In Taiwan, an agricultural research station developed a means to use silkworm in cat food. Scientists in Thailand fed dogs a diet containing silkworm, house crickets or a control diet with poultry meal.

Scientists in Thailand and Taiwan have investigated silkworms as a novel pet food ingredient in dog and cat foods.


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8 big cats test positive for COVID virus at St. Louis Zoo

Biodiversity loss may have created conditions leading to the COVID-19 pandemic.

Two African lions, two snow leopards, two jaguars, an Amur tiger and a puma tested positive for SARS-CoV-2, the virus that causes COVID-19, at the St. Louis Zoo in Missouri. Zoo veterinarians expect the eight cats to make a full recovery. 


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