Kibble moisture content had a positive effect on preference in the study published in the journal Animals.

Dog demographics played a role in canine kibble preference, as did the season, in a study published in the journal Animals. Scientists found that weight and breed influenced kibble preference in tests conducted over ten years, from 2007 to 2017. The hot season also influenced dogs’ intake, even of preferred diets. The researchers considered dog’s age, breed, sex and body weight in terms of how they related to differences in preference between two palatable kibble choices. Read more.

Wall, Tim, and Tim Wall. “Summer Lowers Dogs’ Intake of Preferred Kibble in Tests.” PetfoodIndustry.com, PetfoodIndustry.com, 25 July 2019, http://www.petfoodindustry.com/articles/8351-summer-lowers-dogs-intake-of-preferred-kibble-in-tests.