E-ISSN 2536-9520 | ISSN 1110-2047
 

Original Article 


Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep

Heba E. Farag, Mona Abdallah, Mohamed, A. Nossair.

Abstract
The study was carried out in sheep farms located in North Coast and Desert Road, Egypt for a period of 6 months from April to October, 2020. A total of 100 aborted ewes of local breeds were investigated. Serum samples were obtained to be tested for presence of Brucella and Rift Valley Fever. In addition, stomach contents of aborted foeti, vaginal discharge and placenta of aborted ewes were obtained for the isolation of Salmonella and Listeria. Moreover, a questionnaire form was prepared for each aborted ewe involving; age, breed and type of housing. The recorded results showed that the highest prevalence was due to brucellosis (17%) followed by Salmonellosis (12%) then listeriosis (11%). On contrary, all serum samples were found to be negative for presence of RVF antibodies. Distribution of Salmonella spp. revealed that S. Abortus ovis scored the highest frequency (50%), followed by S. Typhimurium (28.6%) then S. Dublin (14.3%) and S. Agona (7.1%), while distribution of Listeria spp. revealed that L. ivanovii scored the highest frequency (36.8%), followed by L. monocytogenes (31.6%) then L. innocua (21.1%) and L. grayi (10.5%). The effect of age of aborted ewes clarified that the prevalence was increased with increasing age. Also, Rahmani sheep (22.4%) seemed to be more affected by the investigated diseases followed by Baladi sheep and lastly Barki sheep. The effect of type of housing showed that the prevalence of brucellosis, salmonellosis and listeriosis was 23.1, 26.9 and 23.1%, respectively in closed sheep houses while; it was 14.9, 6.8 and 6.8%, respectively in opened sheep houses. Finally, PCR was successfully employed for detection of Brucella in blood samples of aborted ewes.

Key words: Infectious, Diseases, Abortion, Sheep, Epidemiology


 
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How to Cite this Article
Pubmed Style

Farag HE, Abdallah M, Mohamed , Nossair A. Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. AJVS. 2021; 68(1): 54-61. doi:10.5455/ajvs.31565


Web Style

Farag HE, Abdallah M, Mohamed , Nossair A. Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. http://www.alexjvs.com/?mno=31565 [Access: February 26, 2021]. doi:10.5455/ajvs.31565


AMA (American Medical Association) Style

Farag HE, Abdallah M, Mohamed , Nossair A. Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. AJVS. 2021; 68(1): 54-61. doi:10.5455/ajvs.31565



Vancouver/ICMJE Style

Farag HE, Abdallah M, Mohamed , Nossair A. Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. AJVS. (2021), [cited February 26, 2021]; 68(1): 54-61. doi:10.5455/ajvs.31565



Harvard Style

Farag, H. E., Abdallah, . M., Mohamed, . & Nossair, . A. (2021) Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. AJVS, 68 (1), 54-61. doi:10.5455/ajvs.31565



Turabian Style

Farag, Heba E., Mona Abdallah, Mohamed, and A. Nossair. 2021. Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. Alexandria Journal of Veterinary Sciences, 68 (1), 54-61. doi:10.5455/ajvs.31565



Chicago Style

Farag, Heba E., Mona Abdallah, Mohamed, and A. Nossair. "Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep." Alexandria Journal of Veterinary Sciences 68 (2021), 54-61. doi:10.5455/ajvs.31565



MLA (The Modern Language Association) Style

Farag, Heba E., Mona Abdallah, Mohamed, and A. Nossair. "Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep." Alexandria Journal of Veterinary Sciences 68.1 (2021), 54-61. Print. doi:10.5455/ajvs.31565



APA (American Psychological Association) Style

Farag, H. E., Abdallah, . M., Mohamed, . & Nossair, . A. (2021) Epidemiological Studies on Some Infectious Diseases Causing Abortion in Sheep. Alexandria Journal of Veterinary Sciences, 68 (1), 54-61. doi:10.5455/ajvs.31565





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