It’s been known that egg is a great source of protein. Eggs have big nutritional benefits for dogs and cats. It helps build muscle, strengthen the hair, and repair tissue.
Hardboiled eggs are the simplest cooking method for feeding eggs to your pet, since there is no need for extra non-stick ingredients (i.e., butter, oil, or margarine for scrambling). The cooked egg can be cut into smaller pieces, or diced and mixed into their pet food. The egg can even be given as is — after it has cooled thoroughly.
Raw eggs, however, are not generally recommended for cats and dogs. While there have not been health scares involving raw eggs and transmission of any major illness to domesticated animals, it is still better to be safe. Raw eggs do not impart any significant health benefit, and may only cause problems — issues of which are neutralized by cooking the egg.
One such issue is the presence of the naturally occurring protein avidin in raw egg whites. Occasional consumption is not an issue, but excess avidin interferes with the functioning of biotin in the body. Biotin, more commonly known as vitamin H or B7, is essential for the growth of cells, metabolism of fat, and transference of carbon dioxide, amongst other functions.
Even with cooked eggs, moderation is key. No more than one egg a day, unless your veterinarian has indicated otherwise.