Clincal and haematological findings in bovine immunodeficiency virus (BIV) infected cattle

Sunulan bu çalışmada sığır immun yetmezlik virusu (BIV) ile doğal enfekte süt sığırlarının klinik ve hematolojik bulguları değerlendirildi. Üç yüz sığır arasından BIV enfeksiyonu yönünden pozitif bulunan 37 sığır (% 12,3) değerlendirmeye alındı. BIV pozitif sürülerden seçilen BIV negatif 37 sığır kontrol grubu olarak kullanıldı. Rutin klinik ve hematolojik parametreler bir ay arayla altı kez kaydedildi. Gözlem sürecinde, BIV ile enfekte sığırlarda öncelikli olarak mastitis (n = 18), metritis (n = 9), solunum sistemi hastalıkları (n = 8), retentio secundinarum (n = 7), ve bölgesel lenfadenopati (n = 7), kontrol grubunda ise mastitis (n = 1) ve metabolik hastalıklar (n = 1) tanımlandı. BIV ile enfekte sığırların kalp.ve solunum sayıları kontrol grubuna göre anlamlı düzeyde (P < 0,01) yüksek bulundu. Kontrol grubu ile karşılaştırıldığında, BIV ile enfekte sığırlarda total lökosit ve lenfosit sayısı daha düşük (P < 0,01), buna rağmen nötrofil oranlan daha yüksek (P < 0,05) belirlendi. Çalışma sürecinde grup içi ve gruplar arasında eritrosit ve trombosit indekslerinde istatiksel farklılık belirlenemedi. Bu bulgular BIV enfeksiyonunun sığır populasyonu için bir sağlık riski oluşturabileceğini ve konakçıda total lökosit ve formül lökosit sayılarının değişiminde rol oynayabileceğini göstermektedir.

Sığır immun yetmezlik virusu (BIV) ile enfekte sığırlarda klinik ve hematolojik bulgular

The clinical and haematological findings in dairy cattle with naturally infected bovine immunodeficiency virus (BIV) infection were evaluated. Thirty-seven (12.3%) out of 300 cattle that had previously been found positive for BIV infection were monitored. Thirty-seven BlV-free cattle selected from BIV-positive herds were used as a control group. Routine clinical and haematological parameters were recorded 6. times, at 1 -month intervals. Mastitis (n = 18), metritis (n = 9), respiratory system diseases (n = 8), retained placenta (n = 7), and regional lymphadenopathy (n = 7) were predominantly diagnosed during the monitoring period in BIV-infected cattle, and mastitis (n = 1) and metabolic disturbance (n = 1) in the control animals. Heart and respiratory rates were significantly higher (P < 0.01) in BIV-infected cattle than in the control group. White blood cell (WBC) count and lymphocyte rate were lower (P < 0.01) in BIV-infected cattle, but the neutrophil rate was higher (P < 0.05) than those of the control group. There were no significant differences in erythrocyte or platelet indices within or between the groups during the study. These findings suggest that the presence of BIV infection should be considered a health risk to cattle populations, and may have a role in changing WBC and differential cell counts in the host.

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