Three hundred commercial white leg horn birds of 67 week old were divided into two groups. Group I was fed ZnO (3g/Kg) for three (3) weeks while the other group II was fed normal diet. In Zn treate...
Three hundred commercial white leg horn birds of 67 week old were divided into two groups. Group I was fed ZnO (3g/Kg) for three (3) weeks while the other group II was fed normal diet. In Zn treate...