The invention relates to the use of a microbial composition for the simultaneous reduction of important animal waste parameters, such as ammonia emission, the dry matter content, and amount of nitrogen, the amount of ammonium, and the amount of phosphorus present in the animal waste. It further relates to a method for the simultaneous reduction of important animal waste parameters, such as ammonia emission, the dry matter content, and amount of nitrogen, the amount of ammonium, and the amount of phosphorus present in the animal waste comprising administering a microbial composition to an animal.