Table 5.

Experiment II. Protection of vaccinated calves against tick infestations^a.

	Percent of reduction of
Immunogen / adjuvant	Tick	Tick	Egg		Efficacyf
	Numberb	WeightC	laying	Fertilitye	(%)
			Capacityd
Bm86 / Montanide 888	35	45	61	40	85
Bm86 / cells	0	6	14	0	14
Bm86 / membrane / saponin	18	26	27	30	58

^a Experiments were conducted as described in Table 4. ^b Percent reduction of the adult female ticks. cPercent reduction on the mean weight of the engorged tick. ^d Percent reduction in the laying capacity of the adult female ticks. ^e Percent reduction in the mean weight of the larvae per gram of eggs. ^f Efficacy (%) = 100 × {1- (CRT × CRO × CRF)}; CRT: Reduction in the number of engorging ticks; CRO: Reduction in the egg laying capacity; CRF: Reduction in fertility.