Journals / Sağlık Bilimleri Dergisi / 2010 / Cilt: 19 - Sayı: 3

Investigation with conventional and molecular method of escherichia colio157:h7 in dairy cattle in Kayseri region

Kayseri yöresinde süt sığırlarında escherıchia coli o157:h7’nin konvansiyonel ve moleküler yöntemlerle araştırılması

Pages
159–166
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

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

In conclusion, the raw milk and fecal samples collected from dairy farms in Kayseri region and its vicinity contain E. coli 0157.

📌 3 Key Takeaways

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Objective & Hypothesis:The objective of the present study is to investigate the animal risk factors related to the presence of E. coli 0157:H7 in feces and milk samples collected from healthy cattle at differing ages in private and governmen t dairy farms in Kayseri and its vicinity.
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Key Findings & Data:Five hundred fecal samples and 500 raw milk samples were collected from different locations in Kayseri, processed through immune Magnetic Separation, and inoculated Chorom medium and Sorbitol MacConkey medium.
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Conclusion & Impact:In conclusion, the raw milk and fecal samples collected from dairy farms in Kayseri region and its vicinity contain E. coli 0157.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The objective of the present study is to investigate the animal risk factors related to the presence of E. coli 0157:H7 in feces and milk samples collected from healthy cattle at differing ages in private and governmen t dairy farms in Kayseri and its vicinity. Five hundred fecal samples and 500 raw milk samples were collected from different locations in Kayseri, processed through immune Magnetic Separation, and inoculated Chorom medium and Sorbitol MacConkey medium. Suspicious colonies were selected from this medium, and they were examined serologically with H and O agglutination test. The molecular direction suspicious isolates were examined using multiplex with PCR (mPCR) and uniplex PCR (uPCR) techniques. The examination showed that only 1 (2 %) out of500 raw milk samples and only 6 (4.6%) out of '500fecal samples contained 0157:NM strain, and none of the samples contained flagella H antigen. Through using mPCR, only one sample from 0157:NM of isolated fecal sample contained Ehly A, whereas only one sample contained stx2 genes. None of the other fecal samples contained any virulence genes. Only one raw milk sample isolated from 0157:NM strain did not have any virulence genes. In conclusion, the raw milk and fecal samples collected from dairy farms in Kayseri region and its vicinity contain E. coli 0157. Low levels of contamination rate was determined in the samples. However, it was concluded that due attention should be paid to hygien e rules in Kayseri.

Özet

Bu çalış mada, Kayseri ili ve il çel eri ndeki ka mu ve özel sekt öre ait süt i şl et mel eri ndeki çeşitli yaş grupl arı ndaki sağlı klı hayvanl arı n dı şkı ve sütl eri nde E. coli O157: H7’ ni n varlı ğı nı n sapt an ması ve hayvansal ri sk f akt örl eri ni n ort aya konul ması a maçl an mı ştı r. Bu a maçl a çeşitli il çel er den toplanan 500 adet dışkı ve 500 adet süt örnekleri çalışmada materyal olarak kullanıldı. Immuno Magnetik Seperasyon ve ardından Chorom agar ve Sorbitol MacConkey (SMAC) agara ekim yapıldı. Bu besiyerlerinde üreyen şüpheli koloniler seçildi ve bunlar serolojik yönden H ve O agglütinasyon testi ile incelendi. Moleküler yönden ise şüpheli izolatlar multipleks PCR ( mPCR) ve uni pl eks PCR ( u PCR) t ekni kl eri il e i ncel endi. Bu işlemleri sonucunda 500 süt örneğinden 1 (% 2)’inde ve 500 dışkı örneğinden 6 (% 4,6)’sında O157:NM suşu tespit edilmiş olup örneklerin hiçbirinde flagella H antijenine rastlanmadı. Dışkıdan izole edilen O157:NM suşlarına yapılan mPCR’ da bir örnekte Enterohemolysine genine (Ehly A) rastlanırken, 1 örnekte yalnızca Sitotoksin 2 (stx2) geni tespit edildi. Diğer dışkı örneklerinde virülens genlerinden hiçbirisine rastlanmadı. Sütten izole edil en bi r adet O157: N M s uş unda i se vi r ül ens genlerinden hiçbirisine rastlanmadı. Sonuç olarak, Kayseri ili ve ilçelerindeki işletmelerdeki süt sığırlarının dışkısında ve sütlerinde E. coli O157 belirlenmiştir. E.coli O157:H7 tespit edilmemiştir. Belirlenen kontaminasyon oranının düşük düzeylerde olduğunu, bununla birlikte Kayseri ilinde hijyen kurallarına dikkat edilmesi gerektiği sonucuna varıldı

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Cite This Article

YONTAR, A., İÇA, T., AYDIN, F. (2022). Investigation with conventional and molecular method of escherichia colio157:h7 in dairy cattle in Kayseri region. Sağlık Bilimleri Dergisi, Cilt: 19 - Sayı: 3, 159–166. https://ajindex.com/articles/590190

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