Do you know what your cat does when she eats? You're probably giving me a little bit of a blank stare right now, like, she puts her face in the bowl and chews her food (or maybe like some cats, she doesn't chew it much at all…).
You throw your cat's food down and walk away so many times, but you might be missing some of the interesting behaviors that your cat is engaging in while she eats. Furthermore, a new study in the Veterinary Journal suggests that the behaviors that your cat engages in while she's eating might tell you just how much she likes the food.
Before we get into this new study, let's review some of the things we already know about how cats eat. Cats are obligate carnivores, and their teeth are really designed for shearing meat into strips, which they then swallow mostly whole. Not a lot of chewing going on… have you ever seen a cat throw up after they eat some dry food? It looks pretty much the same as it looked going down…
As obligate hunters, cats also engage in a few interesting behaviors while they are eating, such as placing some of their food on the ground or tilting their head to the side while they chew. This behavior is because if they were eating a bird or rat, the body would likely be dragging on the ground. The harder the food is to chew, the more you'll see a cat's head tilt. Cats also shake their heads when they pick up a food item or a small bite of food. Leyhausen attributed this behavior to the instinct to shake a bird that has been killed to loosen the feathers. Cool! Even your kibble fed kitty has instincts related to the cat's evolution as a predator.
The new study, A Novel Set of Behavioural Indicators for Measuring Perception of Food by Cats, took place in Finland. The goal was to categorize what types of behaviors cats presented when eating their favorite food, as well as a less favored type of food, and finally to test out whether or not cats would notice if there was a tiny pill hidden inside their favorite food.
Researchers had 34 house cats from 17 households participating in the study. I love that they were able to conduct this study in the cats’ homes with owner assistance! Owners were asked to film the cats eating in a standardized way such that the camera was 70 centimeters from the food bowl on an elevated surface. Each cat was fed 1 of 3 food types: their favorite food (often sausage or a meatball, but for one cat a boiled egg), a less desirable food item such as a vegetable or rye bread (!?), or their favorite food with the placebo pill hidden inside.
The researchers developed a lovely ethogram of the different behaviors that cats showed while they were eating. These included flicking their ears backwards, licking their nose, flicking their tail, dropping the food, shaking their head, licking the bowl, sniffing, licking their lips, and grooming their body. Results suggested that when a cat was eating a less desirable food, they were more likely to flick their tail, groom their body, flick their ears backwards and lick their nose without tasting the food. Cats who ate their favorite food were more likely to lick their lips. But when the pill was hidden in their favorite food, the cats were more likely to drop the food or the tablet while eating it.
One of the goals in hiding the tablet in the delicious food, was to see if this could be an effective way to medicate cats. Many cat owners report difficulties pilling their cats, so coming up with something that would be palatable and able to be disguised in regular food would be of great benefit to cats and humans alike. The bad news is that the cats were not fooled. It seemed that they were happy to start eating the food, but once they detected it, they stopped eating. Back to the drawing board on that one.
One of my favorite things about the study was the pictures of the cats engaging in the behaviors. You really don't realize the kinds of faces your cats make while they're eating until you see video stills of it!
It would be nice to see the study have a little more standardization about what the favorite and least favorite food items were. I assume all of the favorite foods were wet/canned if they were trying to hide a tablet inside. I’d be curious if cats’ behaviors were similar for dry food. It's also hard to look at eating behaviors if it's something the cat doesn't want to eat…how many cats actually put the cucumber or lettuce in their mouths?? But the study did reveal some very interesting patterns in cats’ eating behavior, that could certainly inform future studies and tell us more about the behavior of cats. Moreover, their goal of trying to develop easier ways to administer medication to cats is an honorable one!!
On that note, if you need some tips on pilling your cat I recommend Kris Chandroo’s Stress to Success program, which I have previously blogged about. You can also check out this video from Fundamentally Feline!