Case Study: B. abortus Outbreak in Egyptian Dairy Farm with a Special Reference to Control Programs

Authors

  • Khaled Salah Agricultural Research Center (ARC), Animal Health Research Institute- Mansoura provincial Lab. (AHRI-Mansoura) P.O. Box 35511-Mansoura, Egypt.
  • Mohamed El-Diasty Agricultural Research Center (ARC), Animal Health Research Institute- Mansoura provincial Lab. (AHRI-Mansoura) P.O. Box 35511-Mansoura, Egypt.
  • Fatma I. El-Hofy Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Benha University P.O. Box 13736- Moshtohor, Toukh, Egypt.
  • Gamal Wareth Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Benha University P.O. Box 13736- Moshtohor, Toukh, Egypt.
  • Ashraf A. Abd El Tawab Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Benha University P.O. Box 13736- Moshtohor, Toukh, Egypt.

Abstract

A storm of abortions was reported in a Holstein dairy farm (150 heads) at Dakahlia governorate, Delta region, Egypt. The abortion rate was 25.9% among the pregnant cows between the 5th and 8th months of pregnancy. All animals inside the farm (n=150) have been sampled for a serological survey. Additionally, abomasal contents, retained placenta, and milk samples were sampled for bacteriological isolation and characterization of the causative pathogen of abortion. A total of 16.6 % of the aborted animals were seropositive with RBPT and BAPAT. Abortion materials and retained fetal membranes showed significant association with seropositivity. Moreover, B. abortus bv. 1 was bacteriologically isolated and then underwent confirmation by AMOS-PCR in samples of 20 animals. Increase awareness of occupational personnel on the farm, immediate slaughtering of the sero-positive animals, and vaccination of the sero-negative animals with B. abortus RB51 vaccine (2ml subcutaneous for each animal), are collectively recommended for a rapid control of brucellosis on the farm and for prevention of further abortions.

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Published

2022-09-17

How to Cite

Salah, K. ., El-Diasty, M. ., El-Hofy, F. I. ., Wareth, G. ., & Abd El Tawab, A. A. . (2022). Case Study: B. abortus Outbreak in Egyptian Dairy Farm with a Special Reference to Control Programs. Journal of Advanced Veterinary Research, 12(4), 462-465. Retrieved from https://advetresearch.com/index.php/AVR/article/view/1080