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Even if a pet food is formulated to provide all of the essential nutrients required by a dog, it is of little value if the animal will not eat it. Quality pet foods are carefully formulated not only to be highly nutritious but also to be highly palatable.
Palatability is a term used to describe how well a dog likes the taste, smell, and texture of a food. A premium dog-food manufacturer spends a considerable amount of time conducting controlled feeding studies to determine the right combination of ingredients and processing techniques to produce a nutritious, palatable food.
There are two ways to test and measure the palatability of a dog food:
First Bite: The first palatability test is called the “first bite” preference. This measures the dog's first impression of a food's aroma and appearance.
Total Volume: Because the novelty of a new diet can cause highs and lows in first-bite tests, a second test is conducted called “total volume” measurement. Total volume determines the staying power or ability of a diet to maintain the animal's interest over time. This is the dog’s overall choice of a food based on taste, texture, and nutrition for the entire test period.
In order to obtain and interpret accurate results, palatability studies must be performed by experienced animal technicians and the data analyzed by research nutritionists. Feeding studies are conducted by offering an animal two bowls of food at the same time. Each bowl contains a different diet that has been carefully weighed and recorded.
The technician observes which food the dog chooses to eat first, and then records that as the first-bite preference. After a specific time period, bowls are removed and any remaining food is weighed and recorded. Diets also are switched from left to right each day of the study to ensure that dogs are not eating one diet simply out of habit.
The total-volume measurement is determined by calculating the difference between the beginning and ending weights of each food. This procedure is repeated using the same two diets with the same group of dogs for five days. At the end of the five-day study, all observations and data are compiled and analyzed to determine the overall palatability of each diet.
Dogs are attracted by not only the taste of a food, but also to its sight, aroma, and texture. Dogs are particularly interested in the smell of food.
Liquid digest is simply protein that is enzymatically broken down into amino acids, which are the building blocks of protein. The enzymatic process reduces large protein pieces to smaller protein pieces and free amino acids. By adding small amounts of acid, the enzymatic or digestive reaction is stopped and a stable liquid ingredient is produced. After a dry-food formula is cooked, formed into kibbles, and dried, the liquid digest is sprayed evenly on the outside of the dry kibbles. This is called “enrobing.” Not only does the liquid digest make the food highly palatable, but it also adds to the overall digestibility of the food.
Yes. We use liquid digest made from chicken to enhance the palatability of dry foods and to contribute to the nutritional value of the diet. Some pet foods include flavor enhancers, such as onion powder, which simply mask the aroma and taste of the ingredients and provide no nutritional benefits to the animal.
We asked dog owners* how many hours a day they think their adult dog sleeps. The answers averaged around 9.7 hours. Truth is, dogs normally sleep around 12-14 hours a day. (Cats sleep 12-16 hours, which is why it’s called a “catnap,” we presume.) “Normal” can depend on lots of things. Bigger breeds definitely need more z’s. Older dogs tire quicker and sleep more. Growing puppies need up to 20 hours a day. Being cute must really be tiresome.
But why do they sleep so much? We’re not going to let sleeping dogs lie; we’re getting to the answers.
Dogs spend less time in deep REM sleep, so they’re able to wake quickly and be ready to go — whether it’s responding to danger or the opening of a bag of chips. It also means they need to doze more often to make up for that lack of truly restful sleep.
In general, carnivores need more rest. “In their wild dog and wolf days, it was a hunt for food, bringing down large prey, then feasting,” says
Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute. “They’d spend a long time digesting and may not eat for a few days. There’s a tendency to conserve energy.” Just think about how you feel after eating a huge steak. Incoming meat coma. Goodbye, belt. Hello, sofa.
Yawn. When owners are out of the house, dogs often sleep simply because they’re bored. They’re not into books and haven’t quite figured out how to turn on the TV, so why not catch a few extra winks? Plus, they want to be super refreshed when you come back home in the evening.
Some dogs like to sleep longer and some dogs are just lazier than others. According to
Opens a new windowDr. Tammie King, Applied Behavior Technical Leader at Waltham Petcare Science Institute, “You might see more sleeping after intense exercise or they’ve gone to a pet sitter or boarding center due to high stimulation.” There’s usually no cause for concern unless they seem lethargic and lose interest in playing or eating, or begin listening to a lot of emo music.
Their wild days long gone, dogs have adapted their sleep schedules to match humans’ sleep schedules. Sort of. They still might get you up in the night or early morning before your alarm goes off. It’s best to exercise them in the morning and evening so they’re more tired — and have used the facilities — right before everyone else goes to sleep.
Now, the only question remaining is, what do you think your dog dreams about?
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8-10, 2020
