Why Is Palatability Important?
Even if a cat food is formulated to provide all of the essential nutrients, it is of little value if the cat won’t eat it. Quality cat foods are carefully formulated not only to be highly nutritious, but to be highly palatable as well.
What Is Palatability?
Palatability is a term used to describe how well a cat likes the taste, smell, and texture of a food. A premium pet 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.
How Is Palatability Measured?
There are two ways to test and measure the palatability of cat food:
First bite: The first palatability test is called the first bite preference, and measures the cat'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, the total volume measurement, is conducted. Total volume determines the staying power, or ability of a diet to maintain the animal's interest over time. This is the cat's overall choice of food based on taste, texture, and nutrition for the entire test period.
How Are Palatability Feeding Studies Conducted?
In order to obtain and interpret accurate results, palatability studies must be performed by experienced animal technicians, with 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 animal chooses to eat first, 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 are also switched from left to right each day of the study to ensure that animals 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 or cats 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.
What Affects Palatability of Cat Foods?
Cats are attracted by not only the taste of a food, but also by the sight, aroma, and texture. Cats can be very particular about the shape and size of dry food kibbles and also prefer a food with an acidic taste.
What Is Liquid Digest and How Does It Affect Palatability?
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.
Is Liquid Digest a Good Palatability Enhancer?
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.