Feline food - Dry Food

Dry food contains 6 to 10 percent moisture. Depending on the specific formulation, meats or meat byproducts, poultry or poultry byproducts, grain, grain byproducts, fish meal, fiber sources, milk products, and vitamin and mineral supplements are combined, extruded, and dried into bitesized pieces. The pieces are then covered with flavor enhancers, such as animal fat, which give them increased palatability. The primary advantages of dry cat food are lower cost and convenience in allowing “free choice” feeding. However, dry food may be less palatable to a cat, and, depending on the types and quality of the ingredients, may also be less digestible than moist food. If you do use dry food, it is important to store unused portions in a cool, dry location, and not to use the food after its expiration date (which is printed on the container). Often owners buy large amounts of dry food that can sometimes last for 3 to 6 months; therefore, checking the expiration date before feeding it to your cat is very important. Lengthy storage decreases the activity and potency of many vitamins and increases the likelihood that fats have become rancid. Storing dry cat food in an airtight container can help prevent nutrient deterioration and help maintain palatability.

Feline food - Semi-Moist Food

Semi-moist food contains approximately 35 percent moisture and often resembles ground- or wholemeat tidbits. Meat and meat byproducts are the primary ingredients. They are combined with soybean meal, cereals, grain byproducts, and preservatives. The cost is generally mid-range, and these foods may be more appealing than dry cat food to some cats. Semi-moist food can also be fed free choice. However, after the package is opened, palatability decreases and spoilage increases because of dehydration.

Feline food - Canned Food

Canned cat food has a moisture content of at least 75 percent, making it a good dietary source of water. It is generally the most expensive type of cat food, but it also is highly palatable to most cats, and different varieties are plentiful, which can be helpful if your cat is a finicky eater. Canned food has the longest shelf life when unopened, but any unused portion of opened canned cat food should be refrigerated to maintain quality and prevent spoilage. Gourmet canned cat foods generally feature meats, such as kidney or liver, and whole meat byproducts as primary food ingredients. Some brands, however, may be nutritionally incomplete, and it is important to read the nutrition labels carefully on such specialty cat-food items to ensure that they have a nutritional guarantee.