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Fırat Üniversitesi Sağlık Bilimleri Veteriner Dergisi
1999, Cilt 13, Sayı 3, Sayfa(lar) 283-292
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The Vectors of Theileria annulata in Cattle in Elazığ Vicinity
Muhammet ANGIN1, Nazir DUMANLI2
1Veteriner Kontrol ve Araştırma Enstitüsü, Elazığ-TÜRKIYE
2Fırat Üniversitesi Veteriner Fakültesi, Elazığ-TÜRKIYE
Keywords: Theileria annulata , Vector, Hyalomma, Salivary gland

This study was carried out on cattle and their shelters in the villages of Elazığ between July 1993 and July 1995.

Mature ticks collected from infested cattle were identified and salivary glands of Hyalomma species were dissected and thin films were prepared.

The engorged nymphs collected from cattle and their shelters were kept at 26°C and 85% relative humidity until moulting. Unfed adult of Hyalomma species taken from these engorged nymphs and collected from shelters were kept at 37°C and 85% relative humidity at least for five days. Salivary glands of these species were also dissected and films were prepared.

All films prepared from salivary glands were stained with methyle green pyronin stain and examined for T. annulata infection under the microscope.

1077 out of 2004 H.a.anatolicum collected from shelters and 322 out of 1427 H.a.anatolicum from cattle were positive for T.annulata. Nineteen of 408 H.detritum were T.annulata positive. None of 562 H.a.excavatum from cattle were positive for theileriosis.

Mean numbers of infected acini per infected male and female tick from cattle were 11.7 and 21.9 in H.a.anatolicum and 17.9 and 18.8 in H.detritum respectively. In H.a.anatolicum collected from shelters, the above rates were 12.4 and 16.6, respectively.

Seasonal activity of T.annulata infected Hyalomma species were detected and both high infection rate and the density of infection were observed between April and August in H.a.anatolicum and H.detritum from cattle. On the contrary, T.annulata infected H.a.anatolicum were found between October and May in the shelters.

Different infection rates were detected in tick species collected from different cattle breds. These rates were 25.9%, 10.9% and 22.0% in H.a.anatolicum collected from pure-bred, cross-bred and indigenous cattle, respectively. Infection rates were 2.6 % and 5.1 % in H. detritum collected from pure-breed and indigenous cattle.

The density of infected acini in H.a.anatolicum and H.detritum were investigated. In both species, the female ticks had more intensely infected asini than the male ticks.


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