Seçkin SALAR, Doğukan ÖZEN, Ayhan BAŞTAN

Türkiye’de primipar ve multipar ineklerde laktasyonun farklı dönemlerinde uygulanan ticari mastitis aşının bireysel ve tank sütü somatik hücre sayısı üzerine etkisi

Amaç: Bu çalışmanın amacı, önerilenden farklı bir aşılama protokolü ile mastitis aşısı uygulamasının laktasyonun farklı primipar ve multipar ineklerde ve tank sütünde somatik hücre sayısı (SHS) üzerine etkisini araştırmaktı. Gereç ve Yöntem: Çalışmada 97 baş sağlıklı Holştayn ırkı inek kullanıldı. Tüm ineklere 0. gün, 21. gün ve 111. gün olmak üzere 3 doz kas içi yolla inaktif mastitis aşısı enjekte edildi. İlk aşılamadan 30 gün önce ve 2. ile 3. aşılamadan sonraki 30. günlerde SHS analizi için bireysel ve süt toplama tankından süt örnekleri toplandı. Bulgular: Aşılama öncesi, 2. ve 3. aşılama sonrası tank sütü SHS sırasıyla 467, 246, 371 x1000 hücre/ml olarak belirlendi. İkinci ve 3. aşılama sonrası ortalama süt SHS'de rakamsal bir düşüş şekillendiği belirlendi (p>0.05). Erken, orta veya geç dönemde olan hayvanlar için süt SHS'de önemsiz bir azalma gözlendi (p>0.05). Multipar hayvanlar için SHS'nda rakamsal bir azalma mevcut iken; primipar hayvanlar için ikinci aşılamayla birlikte süt SHS'daki düşüşün önemli olduğu saptandı (p0.05). Öneri: Çalışma sonuçları önerilenden farklı bir aşılama protokolü ile mastitis aşısı uygulamasının primipar ineklerde ve tank sütü SHS'nında düşüşe neden olduğu göstermiştir.

The effects of commercial mastitis vaccine applied at different stages of lactation on the somatic cell count in individual and bulk tank milk in primiparous and multiparous cows in Turkey

Aim: This study was conducted to investigate the effect of a mastitis vaccine with non-labelled vaccination regimen on the milk somatic cell count (SCC) in primiparous and multiparous cows at different stages of lactation. Material and Methods: In the study, 97 healthy Holstein cows were included and the cows were vaccinated on day 0 (d 0), 21 days later (d 21) and 90 days thereafter (d 111). Individual and bulk tank milk samples were collected for SCC analysis on the 30th day prior to the 1st vaccination and on the 30th day after the 2ⁿd and 3rd vaccinations. Results: Bulk tank milk somatic cell counts (BTMSCC) at prevaccination, and after the 2ⁿd and 3rd vaccinations, were 467, 246, and 371 x1000 cell/ml, respectively. It was observed that average milk SCC was numerically decreased after the 2ⁿd and 3rd vaccinations, with respect to pre-vaccination level (p>0.05). Unremarkable declines in individual SCC (iSCC) were observed in the cows at early, mid or late lactation periods (p>0.05). While the decline in iSCC was numerically in the multiparous cows, it was found to be significant after the 2ⁿd vaccination in the primiparous cows (p0.05).Conclusion: Results suggested that commercial mastitis vaccine with non-labelled vaccination regimen led to a decline in SCC in the milk, particularly in the primiparous cows and in bulk tank milk

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