Journals / Etlik Veteriner Mikrobiyoloji Dergisi / 2005 / Cilt: 16 - Sayı: 1-2
Epidemiologycal İnvestigations of Tropical Theileriosis in Cattle
- Pages
- 43–56
- DOI
- —
Abstract
This study was carried out in an endemic region of Central Anatolia to research the ep epidemiology of tropical the theileriosis after vaccination from March 1996 to April 1999. The study was conducted in Kesikköprü, Köseli, Kerişli villages and TIGEM farm of Bala county, and Kabak, Güreş, Girmeç, Hıdırşeyh villages and TIGEM fann of Polatlı county where the presence of Theileria annulata was detected by blood smear inspections. In these villages, 50 % of cattles was native, 30 % cross-breed and 20 % pure Holstein. The studies have showed that the prevalence of T.annulata was 39.8 % befare the vaccination. Cattle were vaccinated by T. annulata live macro-schizont vaccine that contained 107 cells per ml (produced in Pendik Veterinary Research Institute). lnspections done 45 days later fallawing to the vaccination showed that 58.5% of cattle became seropositive against T. amııtlata antigen. The seropositivity percentage in unvaccinated control group cattle became 30.1% during one active season of the disease. In the same period, 48.5 % of vaccinated and 29.4 % of control group animals became the port or of T. annulata. The vaccine was found to be partially effective on tropical theileriosis since the ineidence of the disease was detected to be 1.9% in the vaccinated animals and 10.5 %in the unvaccinated control group animals. It was also confırmed with this study that theileriosis is endemic disease in certain regions of Ankara province. The sporoblasts of T.annulata were found in the saliva glands of Hyalomma anatolicum anatolcum and Hyalomma anatolicum excavatum. lt was concluded that tlıese ticks are the potantial vecfor of tropical the theileriosis in Turkey.
Özet
Türkiye'de mevcut sığırların çoğunluğu, genetik yapı İtibarıyle, düşük verimli yerli ırklardan meydana gelmiştir. Bu nedenle, tarımsal potansiyeli yüksek bölgelerde bulunan yerli ırk sığırların yerine batıdan kültür ırkı sığırlar ithal edilerek, yıllardır sığırcılığın ıslahına çalışılmıştır. Ancak, Türkiye'de sığır yetiştiriciliğini olumsuz yönde etkileyen, genetik yapı dışında diğer bazı faktörler de mevcuttur. Bu faktörler arasında viral, bakteriyel ve paraziter hastalıklar önemli yer tutarlar.