Experimental scheme.

<p>Two groups of 7 cows were immunized with ovalbumin (OVA) in two different adjuvant preparations. The immune response of the cows was monitored by taking blood samples on days 0, 30, 45, 60 and 75 days post-immunization. A skin test was performed 45 days post-immunization, and cows were challenged in one quarter with ovalbumin on day 60 post-immunization. The inflammatory response to the challenge was monitored for 4 days. M: Montanide ISA 61 VG.