意外に日本の畜産業も悩んでるみたいだな

http://www.google.com/search?q=%E8%BF%91%E8%A6%AA%E4%BA%A4%E9%85%8D+%E5%BC%8A%E5%AE%B3&ie=UTF-8&oe=UTF-8&hl=ja&lr=