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.
However, the seeds, peel, leaves, or stem of the orange contain oils that are poisonous, so make sure you only feed pets the fleshy part of the fruit. Pear - Pears are full of vitamin C, vitamin A, and fiber, and make a great snack for cats and dogs when served in moderation.