L’objectif de l’étude a été de déterminer l’incidence de la tuberculose chez les bovins abattus dans les abattoirs de Nyala, Etat du Darfour du Sud au Soudan, pendant la période d’avril 2006 à mai 2008. Au total, 2 794 bovins ont été examinés pour la présence de lésions tuberculeuses. Ces dernières (n = 163) ont été retrouvées dans 40 (1,4 p. 100) animaux, sept ayant présenté une tuberculose généralisée et 33 une tuberculose localisée, principalement dans les poumons, les ganglions lymphatiques thoraciques, et/ou dans le foie, la rate, les reins et les ganglions lymphatiques mésentériques. Des échantillons tissulaires ont été placés soit dans une solution de formol à 10 p. 100 pour un examen histopathologique de routine, soit dans de la glace pour un examen en microscopie directe et une mise en culture. La microscopie directe a montré que 124 (76,1 p. 100) lésions tuberculeuses contenaient des bacilles acido-alcoolo-résistants, tandis que 17 (10,4 p. 100) isolats de Mycobacterium spp. ont pu être cultivés en milieu de culture de Löwenstein-Jensen pur et identifiés comme étant M. bovis (n = 11) et M. farcinogenes (n = 6). Une inflammation granulomateuse a été observée dans toutes les coupes de lésions tuberculeuses. D’autres études seront nécessaires pour identifier les espèces de mycobactéries responsables de la tuberculose chez d’autres espèces animales.

The study was carried out at Nyala abattoirs, South Darfur State, Sudan during a period from 2009 to 2011. Slaughtered camels (822) were examined for pathological changes of liver abscesses and identification of the involved aerobic bacteria. Grossly, a total of 111 (13.5%) liver abscesses were recorded in different camel ages; 90 (81.1%) were less than seven years old and 21 (18.9%) were more than seven years old. Histopathology of sectioned tissues revealed necrotic abscesses with infiltration of inflammatory cells, hydropic degeneration with swelling of hepatocytes comprising the sinusoid and different size of vacuoles in the hepatic cells. Proliferation of bile ducts with fibrous tissue and infiltration of inflammatory cells was also recorded. Investigation of bacteria revealed 90 aerobic isolates; they were identified to 52 (57.8%) gram positive cocci, 20 (22.2%) gram positive rods and 18 (20.0%) gram negative rods. Staphylococcus spp. (41.1%), Corynebacterium spp. (17.9%) and Streptococcus spp. (13.3%) were the most frequently identified bacteria involved in liver abscesses of camels in the region. Further studies are required to assess the pathogenicity of bacterial isolates from camel livers. This is particularly important from a public health perspective, since some people of Sudan are known to consume raw camel liver.

Hemangioma is a benign tumor of blood and lymphatic vessels. It is common in skin, mucosa and soft tissues, and its occurrence in lymph nodes is extremely rare. A 10 year-old she-camel was slaughtered at Nyala slaughterhouse, South Darfur State, Sudan. Grossly, the carcass was emaciated. The left ventral superficial cervical lymph node was enlarged, hard on palpation and protruded outside the body. Its cut surface was dark red in color and measured (18 cm) in diameter. Histopathologically, the sections revealed vascular masses were composed of non-encapsulated clusters of small and medium sized with thick and thin-walled, filled with blood, separated by courageous stroma and surrounded by closely packed proliferating capillaries. To the best of our knowledge, this is the first record of the left ventral superficial cervical lymph node hemangioma in a camel in the Sudan.

This study identified nontuberculous mycobacteria (NTM) recovered from bovine pyogenic affections obtained at necropsy using the molecular target 16S-23S rDNA internal transcribed spacer region. Postmortem inspection of cattle was conducted at South Darfur State abattoirs and Alsabalouga Slaughterhouse at Omdurman area during 2007-2009. Specimens were examined for the presence of acid fast bacteria (AFB) using microscopic and standard culturing techniques. AFB were identified phenotypically and confirmed by 16S-23S rDNA ITS. Fifty nine NTM were recovered and confirmed as acid fast filaments out of 165 positive AFB specimens, of which 52 isolates were identified as bovine farcy causative agents, while 7 cultures were excluded due to drying. 16S-23S rDNA ITS of NTM revealed three different amplicons 500 bp. (32) isolates, 550 bp. (2) isolates and 600 bp. (14) isolates. Four isolates were contaminated.