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Table 1 Evaluation of the effect of multivalent anti-tick vaccine on the biological fitness of normal Rhipicephalus appendiculatus adult ticks and nymphs from the Muguga colony

From: Induction of humoral immune response to multiple recombinant Rhipicephalus appendiculatus antigens and their effect on tick feeding success and pathogen transmission

  Vaccinated cattle hosts (n = 20)a Control cattle hosts (n = 10)a U-valueb P-valueb
Nymphs
Average weight of 100 nymphs 1.2 ± 0.0 1.2 ± 0.0 100.0 < 0.999
Nymphs molting successfully of 100c 98.1 ± 0.4 97.9 ± 0.4 79.0 0.351
Adults
Number of engorged females recovered from 50 applied 46.5 ± 1.3 45.9 ± 1.0 71.5 0.208
Average adult female replete weight (mg) 528.0 ± 12.0 548.0 ± 9.0 69.5 0.187
Total egg weight laid (g) 13.4 ± 0.6 11.5 ± 0.9 64.0 0.117
Average egg weight/tick (mg) 304 ± 17 246 ± 15 56.5 0.056
  1. aValues represent the mean ± standard error of the mean (SEM)
  2. bMann-Whitney test: vaccinated vs control group
  3. cPercentage of nymph ticks successfully molting to the adult stage in a random population of 100 individuals collected for monitoring