Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq

This study aimed to detect <em>Brucella</em> antibodies in the sera of dairy cows and to identify <em>Brucella </em>species in the milk of seropositive cows. A total of 100 sera and 100 milk samples were collected from two 50-cows groups (group 1 with and group 2 without a hi...

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Main Authors: Kani M. Ridhae, Suha A. Hussein
Format: Article
Language:Arabic
Published: University of Mosul, College of Veterinary Medicine 2021-07-01
Series:Iraqi Journal of Veterinary Sciences
Subjects:
Online Access:https://vetmedmosul.com/article_168596_7152af784c153754605f15528b2f21a7.pdf
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author Kani M. Ridhae
Suha A. Hussein
author_facet Kani M. Ridhae
Suha A. Hussein
author_sort Kani M. Ridhae
collection DOAJ
description This study aimed to detect <em>Brucella</em> antibodies in the sera of dairy cows and to identify <em>Brucella </em>species in the milk of seropositive cows. A total of 100 sera and 100 milk samples were collected from two 50-cows groups (group 1 with and group 2 without a history of reproductive problems and/or decreased milk production). Rose Bengal plate test and indirect ELISA were used to explore <em>Brucella </em>antibodies in the serum samples and thereafter milk samples of seropositive cows were undergone PCR analysis using <em>Brucella</em> genus specific primers and 3 pairs of species specific primers for identification of <em>B. abortus, B. melitensis </em>and<em> B. suis</em>. The RBPT showed 22 cows were carriers for the <em>Brucella</em> antibodies, 18 in group 1 and 4 in group 2 whereas the iELISA showed only 10 cows out of these 22 cows were positive, 9 in group 1 and only 1 cow in group 2. The PCR assay, which was performed on milk samples of the RBPT positive cows, revealed 18 samples were positive for the<em> Brucella</em> genus and the <em>Brucella</em> <em>abortus</em> species and were negative for <em>Brucella melitensis</em> and <em>Brucella suis</em> species. As a conclusion, the results of this study showed that brucellosis has been encountered in cows with or without a history of reproductive problems, and the RBPT followed by PCR assay for milk samples of the seropositive cows could provide more specific detection than performing either test alone and could be more useful for rapid screening of brucellosis in dairy cows.
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spelling doaj.art-d1e0c8515c6e494e87945d52c36f64172022-12-21T21:29:10ZaraUniversity of Mosul, College of Veterinary MedicineIraqi Journal of Veterinary Sciences1607-38942071-12552021-07-0135465766210.33899/ijvs.2021.127688.1520168596Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- IraqKani M. Ridhae0Suha A. Hussein1Directorate of Veterinary Hospital, Sulaimaniyah, IraqDepartment of Microbiology, College of Veterinary Medicine, University of Sulaimani, Al-Sulaimaniyah, IraqThis study aimed to detect <em>Brucella</em> antibodies in the sera of dairy cows and to identify <em>Brucella </em>species in the milk of seropositive cows. A total of 100 sera and 100 milk samples were collected from two 50-cows groups (group 1 with and group 2 without a history of reproductive problems and/or decreased milk production). Rose Bengal plate test and indirect ELISA were used to explore <em>Brucella </em>antibodies in the serum samples and thereafter milk samples of seropositive cows were undergone PCR analysis using <em>Brucella</em> genus specific primers and 3 pairs of species specific primers for identification of <em>B. abortus, B. melitensis </em>and<em> B. suis</em>. The RBPT showed 22 cows were carriers for the <em>Brucella</em> antibodies, 18 in group 1 and 4 in group 2 whereas the iELISA showed only 10 cows out of these 22 cows were positive, 9 in group 1 and only 1 cow in group 2. The PCR assay, which was performed on milk samples of the RBPT positive cows, revealed 18 samples were positive for the<em> Brucella</em> genus and the <em>Brucella</em> <em>abortus</em> species and were negative for <em>Brucella melitensis</em> and <em>Brucella suis</em> species. As a conclusion, the results of this study showed that brucellosis has been encountered in cows with or without a history of reproductive problems, and the RBPT followed by PCR assay for milk samples of the seropositive cows could provide more specific detection than performing either test alone and could be more useful for rapid screening of brucellosis in dairy cows.https://vetmedmosul.com/article_168596_7152af784c153754605f15528b2f21a7.pdfbrucellosisielisapcrrbpt
spellingShingle Kani M. Ridhae
Suha A. Hussein
Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
Iraqi Journal of Veterinary Sciences
brucellosis
ielisa
pcr
rbpt
title Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
title_full Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
title_fullStr Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
title_full_unstemmed Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
title_short Serological and molecular investigations of Brucellosis in dairy cows at certain areas of Al-Sulaymaniyah governorate- Iraq
title_sort serological and molecular investigations of brucellosis in dairy cows at certain areas of al sulaymaniyah governorate iraq
topic brucellosis
ielisa
pcr
rbpt
url https://vetmedmosul.com/article_168596_7152af784c153754605f15528b2f21a7.pdf
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