In 2009, an estimated 62.1 million metric tons of eggs were produced worldwide from a total laying flock of approximately 6.4 billion hens. There are issues of regional variation in demand and expectation, as well as current debates concerning methods of mass production.
Olives are not toxic to cats, but have little nutritional value. Green olives and pimentos contain chemicals similar to those found in catnip, so some cats may be especially excited by olives.
Cats should not receive melaleuca (tea tree) oil â which can also be toxic to dogs. Never put essential oils into the ear canal as they can damage catsâ delicate ear drums and nerves. Care is needed around eyes as well. Always wash your hands after handling oils to prevent accidentally getting them into your eyes.