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. 2007 Apr 25;14(6):693–699. doi: 10.1128/CVI.00104-07

FIG. 3.

FIG. 3.

Change in (total cow) daily milk production (PRODDIFF in kg) following intramammary infusion challenge at 8 to 16 DIM among four controls (C) and four J5 vaccinates (V). Blood serum titers of J5-specific IgG1 and IgG2 antibodies (Ab) (divided by 100) immediately prior to challenge are shown. Serum IgG1 titers were significantly higher prechallenge among vaccinates (P = 0.003, ANOVA). Mean serum IgG2 titers were higher prechallenge among vaccinates, and the differences approached statistical significance (P = 0.07, ANOVA). Other differences were not significant.