Caseous lymphadenitis in goats
2009
Ivanovic, S., Veterinary Institute of Serbia, Belgrade (Serbia) | Zutic, M., Veterinary Institute of Serbia, Belgrade (Serbia) | Pavlovic, I., Veterinary Institute of Serbia, Belgrade (Serbia) | Zujovic, M., Institute for Animal Husbandry, Belgrade - Zemun (Serbia)
Caseous lymphadenitis is a chronic disease of lymph nodes in goats and sheep, sometimes in humans. A cause is Corinebacterium pseudotuberculosis. The disease is manifested with development of abscesses, mostly in superficial lymph nodes. If disease is not generalized, general condition of animal does not need to be changed. If the disease is generalized it can cause death of adult animals and a breakdown of fertility. This disease can influence big economic losses. Changes on lymph nodes are noticed mostly during the slaughter. The aim of an inspection of goat carcasses was to provode hygienic safe meat (healthy) for human consumption. During the inspection of goats before and after slaughter, on the slaughter line we noticed an enlargement of prescapular and submandibular lymph nodes in the right half (middle walnut size). The lymph nodes were forwarded to analysis in the laboratory. During the primary bacteriological treatment of samples it is established that both lymph nodes were hard, covered with connective tissue capsule with caseous content. In direct microscopic preparation colored by Gram, in these samples were found out Gram-positive bacilli. Coloring by Loffler it was found out metachromatic granules. According to microscopic morphology, cultural and physiological properties and testing biochemical activity, this isolated culture was identified as Corynebacterium pseudotuberculosis. Clinical signs, pathomorphological and bacteriological finding are in accordance to the literature description.
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