Background: Some animal infectious diseases such as tuberculosis, hydatidosis, and fascioliasis cause public health concerns and also significant economic losses. The goal of this study was to assess the rate of fascioliasis, hydatidosis, and tuberculosis in domestic animals during post-mortem inspection at Jijel slaughterhouse, North-Eastern Algeria. Methods: The present study was carried out from March 2017 to February 2018, on 6 520 animals slaughtered at Jijel slaughterhouse. It was based on post-mortem inspection of livers and lungs by visual inspection, palpation, and incision. The statistical analysis was performed using open source software R 2017 and Microsoft Office Excel software. Results: The prevalence rate of fascioliasis (6.9%) was significantly (p<0.001) higher than that of hydatidosis (4.8%) and tuberculosis (1.0%). Regarding all three studied diseases in the slathered animal, the prevalence rate of the diseases in cattle was significantly higher than one in sheep and goats. Three peaks in the rate of studied diseases were recorded during March to May 2017, which corresponds to spring. Conclusion: Considerable prevalence rate of fascioliasis, tuberculosis, and hydatidosis in domestic animals slaughtered at the Jijel slaughterhouse seems to be an important indicator of lack of inspection, preventive, and curative treatments of animals in this region.
This study evaluates hygiene practices on 53 dairy farms in the Jijel and Blida regions of Algeria. A survey questionnaire was drawn up covering milking conditions and cleaning of the equipment. In parallel, bacteriological analyses were carried out to estimate the rate, source and development of bacterial contamination in raw milk produced on the farm. In addition, screening was performed to detect the presence of inhibitor residues. The results of the survey revealed poor livestock conditions and milking practices that could explain the presence of bacteria in cow's milk. The bacteriological results showed that 76.1% of milk samples taken from cow udders complied with legal standards, compared with only 35.8% of milk samples taken from storage tanks. Moreover, bacterial inhibitors were detected in 28.8% of milk samples. These results showed that the hands of milkers, udders, teat cups, utensils, the water used during milking and the milking environment were all potential sources of milk contamination by the bacteria under investigation. These results suggest that, to improve the bacteriological quality of milk, there is a need to introduce a quality policy which places a premium on milk of high bacteriological quality and aims to generalise good hygiene practices throughout the dairy production chain.
Meat is a food of animal origin, which can be contaminated by infectious, parasitic and other non-infectious agents responsible for diseases, which threaten the health of consumers. This still poses a public health problem in Algeria and in many countries. In order to assess the epidemiological situation of certain diseases in the Taher region in Jijel and to determine the influence of certain variation factors and to estimate the risk on public health, a study was extended over a period of 14 months on a total of 1756 cattle slaughtered at the Taher slaughterhouse. The results showed that 609 cattle (34.68%) showed lesions. The highest rate of pathological findings was observed on the liver (37.27%) followed by the lungs (30.21%). The lowest rate was recorded on the digestive system (0.33%) followed by the kidneys (1.14%). In addition, the liver and lungs were more contaminated with hydatid cyst compared to other organs (20.69%, 19.05%, respectively). Our data showed that the diseases affected more females (55.82%) than males (44.17%) (p < 0.001). Furthermore, cattle aged between 3 and 5 years were the most affected (43.51%) and local breed cattle showed more lesions (71.59%). These results testify to the real risk represented by the consumption of organs affected by diseases, and the need to recognize the agents of contamination and the mode of transmission and to implement an extension and control program in this region depending on the epidemiological aspect of the lesions.
In order to assess the epidemiological situation of certain infectious and parasitic diseases of ruminants, a study was carried out in the central abattoir of Jijel on 625 animals (511 cattle, 74 sheep and 40 goats).The results showed that the overall organ contamination rate by the pathologies studied was 17.12% with a higher prevalence rate for fasciolosis (12.32%) compared to other pathologies. In addition, the lungs are contaminated with abscess and hydatidosis (3.04% and 0.48%, respectively), whereas the liver is mainly affected by fasciolosis, abscess and hydatidosis (12.32%, 0.64% and 0.48%), respectively) and the kidneys are affected only by cysts (0.16%). In parallel, the liver is more contaminated (13.44%) compared to the lungs (3.52%) and the kidneys (0.16%). In addition, with the exception of two weak positive correlations between hydatidosis and temperature (r = +0.01689, R2 = +0.00029) and between abscesses and precipitation (r = +0.27335, R2 = +0.07472), other high positive and negative correlations were observed between the rest of the pathologies and mean values of temperature and precipitation. Therefore, it is necessary to implement an extension program of all stakeholders in the industry in order to avoid significant economic losses and preserve consumer health.
In order to assess the microbiological quality of Merguez and influence of temperature on the rate of contamination, from April 2 to May 12, 2016, a study was undertaken in two types of meat retailing in the region of M'Sila, Algeria. A total of 60 samples of Merguez were collected in ten sites from five markets and five independent butcher's shops, for purposes of microbiological analysis. The majority of the samples were contaminated by coagulase positive staphylococci and thermotolerant coliforms. The average counting in both types combined trade were 2.0±0.2 log 10 cfu/g for thermotolerant coliforms and 2.2±0.2 log 10 cfu/g for coagulase positive staphylococci. However, all samples were free of Salmonella spp. and sulphite-reducing Clostridium. Compared to the days of sampling, both bacterial indicators counted in covered markets were significantly different from one day to another (p<0.05). However, no significant difference (p>0.05) were reported between daily concentration for these two groups of bacteria counted in samples from independent butchers. These results show disrespect the rules of good hygienic practices during preparation, storage and sale of Merguez. The potential consequences of the consumption of these foods on the health of consumers should motivate disease control measures.
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