There was no evidence for a significant Hd86 vaccination effect
on adult H. excavatum ticks. The number of engorged female ticks
dropped from Hd86 immunized cattle was not different from
the ones dropped from control group (P = 0.37). Moreover, all the
other entomological parameters (tick weight, eggs weight and
reproductive index of engorged female ticks dropped from Hd86
immunized calves) did not show any variation in comparison
to the control calves (P = 0.43, P = 0.99 and P = 0.27, respectively)