Improved animal feeds and/or waters are provided, which include amendments comprising one or more copolymer salts serving to reduce volatilized ammonia derived from the excrement of animals. The copolymers are preferably water soluble and have substantially equimolar amounts of maleic and itaconic moieties.本發明提供改良之動物飼料及/或水,其包括包含一或多種用以減少源自動物排泄物之揮發氨之共聚物鹽的改善。該等共聚物較佳具水溶性且具有實質上等莫耳量之順丁烯二酸及伊康酸部分。
