Journals / Etlik Veteriner Mikrobiyoloji Dergisi / 2020 / Cilt: 31 - Sayı: 1

Serological evaluation of precolostral Bovine Parainfluenza 3 Virus infection in an organised dairy herd

Bir organize sütçü işletmede Bovine Partainfluenza 3 Virus enfeksiyonunun prekolostral olarak serolojik değerlendirmesi.

Pages
1–6
Publication Date
2020-06-07
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Precolostral ab controls can be used as a convenient tool for estimating and eliminating the risks of upcoming postpartum infections.

📌 3 Key Takeaways

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Objective & Hypothesis:Calves are born agamaglobulinemic due to syndesmochorial placenta features that prevent immunoglobulin transfer to the foetus from the dam.
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Key Findings & Data:The purpose of this study was to investigate Bovine Parainfluenza 3 virus (BPI3V) infection in precolostral calves and their dams.
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Conclusion & Impact:Precolostral ab controls can be used as a convenient tool for estimating and eliminating the risks of upcoming postpartum infections.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Bovine Parainfluenza Virus 3 · Prekolostral · Serokontrol

Abstract

Calves are born agamaglobulinemic due to syndesmochorial placenta features that prevent immunoglobulin transfer to the foetus from the dam. The presence of precolostral antibody (ab) directly induces in-utero infection. The purpose of this study was to investigate Bovine Parainfluenza 3 virus (BPI3V) infection in precolostral calves and their dams. Samples were obtained from large-scale dairy cattle farm, which was established nearly 10 years ago. Blood serum samples were collected immediately after birth from precolostral calves (n=123) and their dams for about three-month period. Blood serum samples tested with Serum Neutralisation test using reference strain SF-4. BPI3V specific ab was found in 119 of 123 dams (96.7%), and ab titres showed a regular bell curve distribution’s and peak points were at 1/20 and 1/40 interval. Out of all precolostral calves, 31 (25.2%) were ab positive between 1/5 and 1/80 titer values. Average ab titre level was higher in the dams of ab positive calves as expected a result of recent infection history. The obtained data revealed that almost all the adults were exposed to BPI3V and one of the four pregnant had transplacental infections. Current veterinary practices are based on the prevention of diseases, which is an important point for intensive dairy breeding enterprises. Precolostral ab controls can be used as a convenient tool for estimating and eliminating the risks of upcoming postpartum infections.

Özet

Danalar anneden yavruya immunoglobulin geçişini önleyen syndesmochorial plasenta yapısı nedeniyle agamaglobulinemik olarak doğarlar. Prekolostral antikor varlığı direkt olarak in-utero enfeksiyonu gösterir. Bu çalışmada prekolostral danalar ve annelerinde Bovine Parainfluenza 3 virus (BPI3V) enfeksiyonunu araştırmak amaçlanmıştır. Örnekler yaklaşık on yıl once kurulmuş büyük ölçekli bir çiftlikten elde edildi. Kan serum örnekleri yaklaşık 3 ay süresince, doğumdan hemen sonra prokolostral danalardan (n=123) ve annelerinden alındı. Kan serum örnekleri referens suş SF-4 kullanılarak yapılan Serum Nötralizasyon ile test edildi. BPI3V spesifik antikorlar 123 annenin 119’unda (%96.7) tespit edildi ve antikor titrelerinin düzenli çan eğrisi gösterdiği ve 1/20 ile 1/40 aralığında pik yaptığı belirlendi. Prekolostral danalrın ise 31’inde (%25.2) 1/5 ile 1/80 aralığında antikor titreleri belirlendi. Antikor pozitif danaların annelerinin ise beklendiği gibi yakın zamanda geçirilmiş enfeksiyona bağlı olarak daha yüksek olduğu görüldü. Elde edilen verilere göre nerdeyse tüm ineklerin BPI3V’a maruz kaldığı ve her dört gebe ineğin birinin transplasental enfeksiyon geçirdiği anlaşıldı. Geçerli Veteriner uygulamalarının temeli, özellikle sütçü intensif yetiştiricilik açısından önemli olan koruyucu hekimliğe dayanır. Prekolostral antikor kontrolleri yakın gelecekte karşılaşılabilecek postpartum enfeksiyonları tahmin ve elimine etmek için kullanılabilecek yararlı yöntem olarak kullanılabilir.

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Cite This Article

GÜR, S., GÖKSU, A. G., BİRDANE, F. M. (2020). Serological evaluation of precolostral Bovine Parainfluenza 3 Virus infection in an organised dairy herd. Etlik Veteriner Mikrobiyoloji Dergisi, Cilt: 31 - Sayı: 1, 1–6. https://ajindex.com/articles/118508

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