Ovipositional Biology of the Cattle Tick, Boophilus Annulatus (Acari: Ixodidae), in the Laboratory

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Abstract
In the laboratory the preoviposition period for both disturbed (daily to remove eggs) and undisturbed female cattle ticks, Boophilus annulatus, averaged 3.4 days, but disturbed ticks laid significantly fewer eggs. Both groups showed a significant positive correlation between weight and the number of eggs laid. The Index of Conversion Efficiency [weight of eggs (g) per weight (g) of female] was significantly lower for disturbed females than for undisturbed females. Average daily oviposition peaked on the 4th day of egg-laying (489 eggs/female per day), then declined steadily. The oviposition period averaged 19.2 days, and there was a positive correlation between number of eggs laid and length of oviposition period. Average minimum incubation time for eggs was 28.7 days.

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