Investigation of Bovine Viral Diarrhoea Virus (BVDV) Infection Epidemiology at Dairies in the Province of Afyonkarahisar

Öz

Bovine Viral Diarrhoea Virus (BVDV) is a cause of viral disease in cattle, which is observed commonly across the world and leading to significant reproduction problems and economic losses. This study was carried out to investigate BVDV infection epidemiology at the dairies in the Province of Afyonkarahisar. In this study, blood samples of a total of 240 cows were collected at 10 dairy cattle herds between the years of 2017-2019. Sera samples were examined by using commercial ELISA test kits in order to determine the existence of antibody (Ab) and antigen (Ag) against BVDV. According to the test results, 98 (40.83%) of the sera samples were found to be positive and 4 (1.67%) of them were determined to be persistently infected (PI). In addition, samples were found to be seropositive in 18.06%, 44.80% and 67.44% at the age range of 6- 24 months, 24-48 months and over 48 months, respectively. It was determined that the seropositivity among age ranges were statistically significant (P<0.05). It was observed that the age-related seropositivity of animals increased in direct proportion. The data obtained from the results of this study show the existence of BVDV infection at the dairy cattle herds located in the province of Afyonkarahisar and its surrounding. For this reason, voluntary or obligatory eradication program practices are of importance for regional and national economy to prevent further spread of said viral agent.

Anahtar Kelimeler

• Cattle
• BVDV
• Epidemiology

Afyonkarahisar İli Süt İşletmelerinde Bovine Viral Diyare Virus (BVDV) Enfeksiyonu Epidemiyolojisinin Araştırılması

Öz

Bovine Viral Diarrhoea Virus (BVDV) dünya genelinde yaygın olarak gözlemlenen ve önemli üreme problemlerine ve ekonomik kayıplara neden olan sığırların viral hastalık etkenidir. Bu çalışma Afyonkarahisar İli süt işletmelerinde BVDV enfeksiyonu epidemiyolojisinin araştırılması amacıyla yapıldı. Çalışma kapsamında 2017-2019 yılları arasında 10 süt sığırı işletmesinden toplamda 240 adet dişi sığır kan örnekleri toplandı. Serum örnekleri BVDV’ye karşı antikor (Ab) ve antijen (Ag) varlığını belirlemek için ticari ELISA test kitleri kullanılarak incelendi. Test sonuçlarına göre serum örneklerinin 98’i (%40.83) pozitif ve 4 tanesi (%1.67) persiste enfekte (PI) bulundu. Ayrıca örnekler, 6- 24 ay, 24-48 ay ve 48 ay üstü yaş aralığında sırasıyla %18.06, %44.80 ve %67.44 seropozitif bulundu. Yaş grupları arasındaki seropozitifliğin istatistiksel açıdan anlamlı olduğu belirlendi (P<0.05). Hayvanların yaşa ilişkin olarak seropozitifliğin doğru orantılı arttığı gözlemlendi. Mevcut çalışmanın sonuçlarından elde edilen veriler, Afyonkarahisar İli ve çevresinde bulunan süt sığırcılığı işletmelerinde BVDV enfeksiyonunun varlığını göstermektedir. Bu nedenle söz konusu viral etkenin daha fazla yayılmasını önlemek için gönüllü veya zorunlu eradikasyon program uygulamalarının bölge ve ülke ekonomisi için önem arz etmektedir.

Anahtar Kelimeler

• Sığır
• BVDV
• Epidemiyoloji

Kaynakça

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