In a new study, cats and dogs briefly favored kibble that included protein derived from microorganisms over kibble made only with conventional animal protein. The preference was observed over a short period, indicating that the animals found the microbial-based kibble acceptable or palatable, though longer-term effects were not assessed.
The research was conducted by Ally Motta de Matos and A.L.B. Cruz of MicroHarvest, a European company that produces protein from microbes. Their work adds to a growing area of investigation into alternative protein sources for pet food, which traditionally relies heavily on animal-derived ingredients.
While the study is limited in scope, it suggests that microbial protein could be incorporated into kibble without discouraging consumption. Further research would be needed to understand nutritional adequacy and long-term acceptance, but the initial preference offers a promising sign for sustainable pet food ingredients.