Abstract: An ion permeable membrane for selective permeation of a target ion, preferably lithium, through the membrane, the membrane comprising a target ion permeable composite comprises a target ion permeable ceramic and at least one organic polymer associated with the target ion permeable ceramic.

Abstract: Prevention and treatment of coccidiosis in chicken is accomplished by administering an anti-chicken coccidiosis composition adapted for oral administration. This composition contains an antibody obtained from an egg of a chicken immunized with an antigenic outermembrane protein or an immunogenic fragment thereof as an antigen having an immunogenicity common for sporozoit and merozoite of Eimeria acervulina, Eimeria tenella, and Eimeria maxima which are associated with chicken coccidiosis. The composition may optionally contain a lactic acid bacterium and/or an antibody obtained from an egg of a chicken immunized with Clostridium perfringens.