As a professional supplier of feed additives in China, we welcome your kind visiting our main product as follows: Zinc Oxide (feed grade) ZnO Appearance:Light yellow powder Specifications: ZnO: 90%-99% Zn: 72%min, 78%min Pass 150μm Sieve≥95% Pb 0.005max, As 0.001%max, Cd 0.001% max Uses: As Zinc additives in feed, ZnO takes lower cost than other Zinc scourses, and have much higher Zinc using rate, is easier to be absorbed by the animal compare with other zinc source. It can make up the zinc effect to be good. For more details, pls do not hesitate to contact us by email: info AT cnwelcom.com.cn Welcome your kind enquiry!