Not that I know of. They don't seem sick. Only thing I see are weird eggs. They are pets. Have a 12x 30 foot run area. They have a night house that is 6x6. Shavings on floor that is cleaned every 5 days. Laying boxes are attacked to night house and those boxes have straw. Food is filled every 2 days and fresh water daily. They get layer crumble. Cracked corn. Oyster shell. Grit. Some oats. Some wild bird seed.