50lb Mazuri Rodent Breeder 6F 5M30 - Mazuri® Rodent Breeder is a diet designed for breeding rats and mice maintained in breeding colonies. Mazuri® rat and mice pellets contains yucca shidigera extract to reduce ammonia odors. No supplements are needed when using this rat and mouse food, although high-producing mice may benefit from using Mazuri® Mouse Breeder Diet 9F.