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  • Title: Studies on the effect of infection by Babesia sp. on oviposition of Boophilus microplus engorged females naturally infected in the Mexican tropics.
    Author: Cen-Aguilar JF, Rodríguez-Vivas RI, Domínguez-Alpizar JL, Wagner GG.
    Journal: Vet Parasitol; 1998 Aug 31; 78(4):253-7. PubMed ID: 9786625.
    Abstract:
    Three hundred and fifteen engorged female Boophilus microplus ticks (weight 210-250 mg) naturally infected with Babesia sp., in the Mexican tropics were monitored for egg production. Haemolymph samples were taken from each tick on the 5th day to the 16th day after collection to detect and estimate the infection with Babesia sp. kinetes. All ticks were held in darkness at 27+/-1.5 degrees C and 85-86% relative humidity. The infection rate of Babesia sp. was 20.3% (64/315). Fifteen ticks were considered heavily infected and 49 lightly infected. The pre-oviposition periods were 3.17+/-0.37, 3.18+/-0.25 and 3.17+/-0.25 days for heavily infected, lightly infected and uninfected, respectively (P>0.05). The numbers of eggs laid on the first day of oviposition were 252+/-53, 235+/-37, 54+/-23 for heavily infected, lightly infected and uninfected, respectively. There was a statistically significant difference between infected (heavily and lightly) and uninfected (P<0.05) ticks. Oviposition periods were 9.60+/-0.81, 9.50+/-0.72 and 9.36+/-0.48 days for heavily infected, lightly infected and uninfected, respectively (P>0.05). The average egg production of heavily infected, lightly infected and uninfected female ticks was 2640+/-103, 2574+/-123 and 2841+/-170 (P>0.05), respectively. These data imply that there is an adaptative tolerance between Babesia sp., and B. microplus under field conditions in the Mexican tropics.
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