Abstract:
The life cycle of Hyalomma dromedarii (camel ticks) was
studied on sheep under experimental conditions from June to
October 2018 at temperature between (27.4°c - 35.5°c) and
relative humidity between (28 % - 56 %). It behaved as threehost
tick and completed its life cycle in (95 – 139) days. Atotal
of 1500 larvae were fed on three sheep,(500 larvae on each
sheep), 1400 larvae were fed on sheep (93.3%). The larval
feeding period was found to be (3 – 17) days at mean
temperature 34.5°c and relative humidity 47% and the larval
moulting periods (12 – 13) days. 300 nymph fed on three sheep
(100 nymph on each sheep) 288 nymphs were fed (96%),
nymph feeding period was found to be (4 – 10) days at mean
temperature 27.4°c and relative humidity 56% and nymph
moulting periods (13 – 15) days. 30 adult ticks were fed on
three sheep (10 adult tick on each sheep) that all adult ticks
were able to feed 100% and adult tick feeding period at mean
temperature 35°c and relative humidity 41%. While the preoviposition
period (4 – 6) days and Pre-eclosion periods (16 -
21). This type of ticks higher weight recorded engorged adult
0.635 grams and has given the highest numbers of eggs 5870
and the engorged female recorded the lowest engorged weight
0.243 grams gave the lowest number of eggs 1674 the highest
hatching rate 97.8% and lowest hatching rate 93.6%.
