Türkiye Genelinde Sığır Paratüberkülozu Prevalansının Elisa ile Araştırılması

Sığır paratüberkülozu (PTB) dünyada yaygın , yetiştiricilik endüstrisinde büyük ekonomik kayıplara yol açan, kronik seyirli bir hastalıktır. Ülkemizde bugüne kadar PTB ' nin prevalansının saptanmasına yönelik genel bir çalışma yapılmamıştır. Bu nedenle hastalığın ülkemizde oluşturduğu kayıplarda bilinmemektedir. Bu çalışmada Türkiye coğrafi özelliklerine göre 9 bölgeye bölünmüştür. Bu bölgelerdeki 2 yaş ve üzeri sığırlardan basit tesadüfi örnekleme ile 8873 kan serum örneği toplanmıştır. Örnekler absorbe ELISA ile test edilmiştir. Örneklerin 409'u pozitif bulunmuştur. ELISA ' nın sensitivitesi %44, spesifitesi %96 olarak tespit edilmiştir. Bu değerlere göre bölgelerdeki gerçek bireysel prevalans belirlenmiştir. Sonuçlar 1. bölgeden başlamak üzere sırasıyla %2.2 , %3.6, %3.7, %3.6, %0, %1.2, %9.6, %4.5 ve %4.4.olarak bulunmuştur. Türkiye genelinde gerçek bireysel prevalans %3.7 olarak tespit edilmiştir. Ayrıca bu çalışmada her köy bir sürü olarak kabul edilmiş, buna göre görünen sürü prevalansı belirlenmiştir. Sonuçlar 1. bölgeden başlamak üzere sırasıyla %33.3, %43.6, %27.2, %43. 1 , %26.6, %38.0, %48.2, %31.8 ve %41.2 olarak saptanmışt ır. Sürüleri n %1 7.2'sinde pozitif hayvan, %20.5 ' inde en az 2 hayvan pozitif bulunmuştur.

Anahtar Kelimeler:

Etlik Veteriner Mikrobiyoloji Dergisi, Sığır, Paratüberküloz, Elisa, Prevalans, Türkiye

Prevalance of Paratuberculosis in the Turkish Cattle Population by Using Absorbed Elisa

Bovine paratuberculosis, widespread in the world, is a chronicle disease which causes a lot of economical losses in the agricultural industry. In our country there has been no study on estimating the prevalance of PTB so far. For this reason it is not known what losses the disease has caused in Turkey. In this study Turkey was dividcd into 9 provinces in accordance with the geographical characteristics. 8873 sera samples from the callle that were at least 2 years old were collected randomly in these provinces. The saınples were tested with absoı·bed ELISA , 409 of samples were positive. The sensitivity and the specificity of the ELISA were 44% and 96% respectively. The true individual - animal prevalance in each province was determined as regards to the sensitivity and specificity ınentioned above . The results, starting from the first province was 2.2%, 3.6%, 3.7%, 3.6%, 0%, 1 .2%, 9.6%, 4.5% and 4.4% respectively. The average true individual- aniınal prevalance in Turkey was found 3.7%. In this study each viiiage was assume as a herd and the apparent herd prevalance was determined . The results , starting from the first province was 33.3%, 43.6%, 37.2%, 43.1 %, 26.6%, 38.0%, 48.2%, 31.8% and 41.2% respectively. The herds were divided into two groups one of which had 1 positive and theothersat least 2 positive cattle. 17.2% of the herds had one positive cattle and 20.5% of the herds had at least 2 positive cattle.

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