Use of a styrene-maleic anhydride copolymer as an adjuvant with testosterone-serum albumin immunogens and its application to increasing ovulation rate in the ewe.

A synthetic poly(styrene-maleic anhydride) copolymer of average molecular weight 470000 potentiated a testosterone-binding antibody response during immunization of sheep with immunogenic testosterone- 3-carboxymethyloxime-serum albumin conjugates.