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Clinicopathological investigation on caseous lymphadenitis in local breed sheep in Algeria

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Abstract

This study was carried out of 4,419 animals raised in an extensive system on local breed sheep of the Tiaret region during 2 years (2010–2011) to determine some clinical and pathological aspects associated to caseous lymphadenitis (CL). Clinical examination revealed a prevalence rate of 5.7 %. CL prevalence rate was significantly higher in females (6 %) than in males (4.8 %). The most affected superficial lymph nodes were mandibular lymph nodes (46.1 %). Gross examination of 1,679 carcasses of sheep at the abattoir revealed the presence of abscesses on 250 carcasses (14.9 %). Out of 105 cases showing lesions of CL, Corynebacterium pseudotuberculosis (53.6 %) was isolated as mixed infection with Staphylococcus aureus (43 %) and Escherechia coli (17.9 %). CL prevalence was significantly higher in adult than in young sheep and in female than in male ones. Visceral form of CL was associated to “thin ewe syndrome” responsible for significant economic losses in Algeria.

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Acknowledgments

The authors are thankful to INRAA (National Institute of Agronomic Research of Algeria) and the staff members of the Laboratory of Hygiene and Pathology for their help during the research work.

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Correspondence to Fatima Benchaib Khoudja.

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PNR 4218, INRAA 2011

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Chikhaoui, M., Khoudja, F.B. Clinicopathological investigation on caseous lymphadenitis in local breed sheep in Algeria. Trop Anim Health Prod 45, 1641–1643 (2013). https://doi.org/10.1007/s11250-013-0410-7

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  • DOI: https://doi.org/10.1007/s11250-013-0410-7

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