GOATS – SOURCE OF LISTERIA MONOCYTOGENES
Snežana Ivanović, Oliver Radanović, Ivan Pavlović, Jadranka Žutić
Veterinary Institute of Serbia, Belgrade, Republic of Serbi
snezaivanovic@gmail.com
Listeriosis is the infectious disease of cattle, sheep, goats, pigs, dogs, cats ... and humans. In goats, the disease is manifested in the form of abortion, encephalitis and septicemia. The cause is Listeria monocytogenes, widespread in the nature and a relatively resistant microorganism. Listeria comes in the environment by excretes of sick hu¬mans and animals as well as of clinically healthy organisms. This microorganism can be found in waste and water, soil, plants, feedstuffs, walls and floors of the buildings where animals live, various kinds of foods of plant and ani¬mal origin, as well as in animals and people. After infection, sometimes there are no clinical symptoms and goats come to the slaughterhouse as clinically healthy animals (latent infection). When the goats come to the slaughter¬house, it is not necessary the transmission of the cause to meat, but it can be transferred to the equipment, walls, floors, aprons and boots. In our study, twenty clinically healthy goats, slaughtered in the slaughterhouse, were tested – one hyperemic uterus and meat of all goats. Floor swabs (from nine different locations) and swabs from the carriage bottom (20 swabs) in which intestines and uterus were placed were taken three days after slaughter. Uterus and car¬riage swabs were tested according to the method RES, chapter 2.10.14.B.1. and meat by ISO 11290 / 1:1996 (E). From the uterus, which was slightly hyperemic Listeria monocytogenes was isolated from slightly hyperemic uterus and from five samples of floor and three samples of the carriages. It was not isolated from meat samples. These re¬sults indicate the possibility of indirect transmission of this bacterium to meat.
Keywords: goat; Listeria monocytogenes; meat; disease; humans
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