title: Active immunization of beef heifers against luteinizing hormone: I. Evaluation of protein carriers and adjuvants on antigenicity of LH.
abstract: Two experiments were conducted to evaluate two carrier proteins and nine adjuvants in promoting antibody production in heifers immunized against LH. The anti-LH antibody response was evaluated in heifers immunized against LH conjugated to either ovalbumin or keyhole limpet hemocyanin (KLH) (Exp. 1). In Exp. 2, an LH-ovalbumin conjugate was used to evaluate effectiveness of nine different adjuvants in antibody production. Weekly blood samples were collected from all heifers throughout the 23-wk study to determine LH antibody binding activity. In Exp. 1, heifers immunized with the LH-ovalbumin (LH-oval) conjugate had greater LH antibody binding activities (P less than .001) than those immunized with the LH-KLH conjugate. In Exp. 2, nine groups of heifers were immunized with LH-oval suspended in one of nine adjuvants; a 10th group was immunized against ovalbumin alone (control). Only adjuvants that contained at least 40% oil resulted in LH antibody binding activity that differed (P less than .01) from control. These results show that ovalbumin was a superior carrier protein to KLH in enhancing antibody production; adjuvants with greater than 50% oil were superior to those with less oil in promoting LH antibody production.
authors: Dept. of Anim. Sci., Washington State University, Pullman 99164-6332.
authors: A J
authors: AJ
authors: Roberts
authors: D M
authors: DM
authors: deAvila
authors: J D
authors: JD
authors: Gerber
authors: J J
authors: JJ
authors: Reeves
mesh_terms: D000276:Adjuvants, Immunologic; D000818:Animals; D000917:Antibody Formation; D002417:Cattle / Q000276:immunology*; D005260:Female; D006433:Hemocyanins / Q000276:immunology; D007114:Immunization; D007986:Luteinizing Hormone / Q000276:immunology*; D010047:Ovalbumin / Q000276:immunology; D012044:Regression Analysis
chemical_list: D000276:Adjuvants, Immunologic; D007986:Luteinizing Hormone; D010047:Ovalbumin; D006433:Hemocyanins; C032808:keyhole-limpet hemocyanin