If you buy Antibodies supplied by Zyagen they should be stored frozen at - 24°C for long term storage and for short term at + 5°C.
Capra aegagrus hircus
Polyclonals and antibodies
Polyclonals can be used for Western blot, immunohistochemistry on frozen slices or parrafin fixed tissues. The advantage is that there are more epitopes available in a polyclonal antiserum to detect the proteins than in monoclonal sera.