http://depot.umc.edu.dz/handle/123456789/165 2026-06-01T23:14:31Z http://depot.umc.edu.dz/handle/123456789/14831 La décision et le manuel opératoire de la césarienne chez la vache. A propos de cinq cas. Medjguer, Sihem; Bensegueni, Abdellatif In the first theoretical part, the study makes callbacks on the anatomy and physiology of parturition of cow that will be the key to the success of the surgical Act, emphasizing the indications that were causes of dystocia calving requiring a cesarean-section. The second part reports five cases of caesarean section in professional practice representing the bovine medical propaedeutic, which forms the basis of the diagnostic approach, describes the results and gives recommendations. 2017-01-01T00:00:00Z http://depot.umc.edu.dz/handle/123456789/14824 Profil de résistance de e coli chez le poulet de chair dans la région de Constantine. Ait kaki, Yasmine; Lezzar, Nawel The objective of our study is to assess the degree of resistance acquired by strains of Escherichia Coli in a poultry farm in the Constantine region. 100 samples of droppings were taken at random from broilers treated with antibiotics. Antibiotic results show that these strains of Escherichia Coli have developed resistance to commonly used antibiotics, cyclins, quinolones, amoxicillin, sulfamethoxasole-trimethoprim. 2022-07-14T00:00:00Z http://depot.umc.edu.dz/handle/123456789/14726 L'adénocarcinome nasal enzootique chez les ovins dans l'Est algérien. Sid, Nassim; Benhamza, Louiza Enzootic nasal adenocarcinoma (ENA) is a contagious neoplasm of the secretory epithelial cells of the nasal mucosa of sheep and goats. The disease is sporadic but often clustered in certain flocks and herds. It is caused by a betaretrovirus named Enzootic Nasal Tumour Virus (ENTV). The purpose of our work is to determine the epidemiological, clinical and anatomopathological profile of enzootic nasal adenocarcinoma in sheep in the east of Algeria (Bordj Bou Arréridj, Sétif, Batna and M'sila). From 2014 to 2021, 98 cases of ANE in sheep were described and submitted to autopsy. Nasal tumours were preserved in 10% formalin. The prevalence of ENA recorded at herd level was 8.57% (21/245) while the individual prevalence was 4.46% (98/2196). The disease was observed in the four regions studied without exception. Rates of 4.20% and 4.51% were recorded in females and males respectively. The average age at onset of ANE was 3.2 years, with extremes of 5 months and 7 years. The animals of 2 to 4 years are the most affected. We noted also that age and sex have no influence on the occurrence of the disease. ANE is observed in this study throughout the year with a slight predominance in autumn and winter. The most clinical signs observed were persistent serous to seromucous nasal discharge (100%), emaciation (72.45%), dyspnoea (54.08%), exophthalmos (46.94%) and deformation of the frontal bone (31.63%) and lacrimal bone (23.46%). On necropsy examination, unilateral (59.18%) or bilateral (40.82%), friable, and pinkish-white tumour masses were observed in the nasal cavities. The size of the tumour was varied from 1.3 to 11 cm. Osteolysis of the frontal and lacrimal bones rates was 54.08%. Histopathological examination showed that 100% of the tumours were adenocarcinomas of low malignant potential. The tumour tissue showed a predominantly acinar architecture. Immunohistochemistry with an antibody specific to the ovine betaretrovirus protein ENTV-env confirmed the viral origin of ANE. Besides a positive labelling of the tumour tissue was observed with the antibodies CK7, AE1/AE3, PCNA, Ki-67, vimentin, S100, NSE and AML. This study shows, for the first time, the presence of ANE in Algeria. This pathology is not well known by all the actors of the sheep industry. Isolation and slaughter of affected sheep remains the best way to eradicate this transmissible cancer. 2023-03-22T00:00:00Z http://depot.umc.edu.dz/handle/123456789/14485 Enquête épidémiologique et prévalence des entérobactéries pathogènes dans la chaîne alimentaire a l’est algérien. Ghougal, khireddine; Dib, Amira Leila; Kürekci, Cemil This study determined the prevalence of pathogenic enterobacteria and identified the main risk factors, in farms, slaughterhouses and butcheries in eastern Algeria, during a two­year period. Thus, a cross­sectional study was conducted, using a simple random sampling method to target 20 farms, 10 slaughterhouses and 5 butcheries. A structured questionnaire was used to assess the hygienic status of the farms, slaughterhouses and butcheries. In addition, 265 samples were collected from walls, soil, litter, feed, water and animal samples consisting mainly of white and red meat, neck skin and liver. aerobic microbial count, Enterobacteriaceae, fecal coliforms and Salmonella were enumerated and selected colonies were identified on the basis of biochemical characteristics and confirmed by MALDI TOF. On the other hand, in order to investigate the use of antibiotics by veterinarians in Algeria, a prospective survey was conducted through a questionnaire. In addition, fifteen antibiotics (15) were used to evaluate the sensitivity of the identified bacteria (n=82). Multi­resistant strains (MDR) were tested for resistance genes to beta­lactams, sulfonamides and quinolones by PCR. The results showed that the prevalence of Enterobacteriaceae is 68.68%. While the prevalence of Escherichia coli and Salmonella spp. is 57.69% and 19.23% respectively. The highest contamination rate was in poultry farms (30.77%), red meat slaughterhouses (18.13%), white meat slaughterhouses (15.38%) and butcher shops (14.84%), followed by beef (13.19%) and sheep (7.69%), farms. The results of the questionnaire showed that the antibiotics often used in cattle and sheep farms are ß­ lactams, sulfonamides and tetracyclines. In contrast, in poultry farms, sulfonamides, quinolones and colistin are the most prescribed antibiotics. While the results of the antibiogram recorded an overall resistance rate of enterobacteria strains of 77.92% (60/77). The observed resistance rates showed high levels for amoxicillin­clavulanic acid, oxytetracycline and trimethoprim­sulfonamides. Low levels of resistance were noted for fosfomycin, colistin and gentamicin. Furthermore, for beta­lactams, our results showed that 3.03% of multi­resistant enterobacteria carry the CMY-2 gene. On the other hand, for sulfonamides, 50% carry the Sul1 gene, 75% the Sul2 gene, and 25% the Sul3 gene. Moreover, for quinolones, no strain was positive. This study highlighted the multifactorial effects of pathogenic enterobacteria contamination on farms such as animal density, hygiene and litter scraping, manure storage, water, pest control, contact with other animals, and the decontamination process. Overall, these results indicate a high rate of contamination and antibiotic resistance by enterobacteria in the food chain. Further studies are needed to determine all potential risk factors associated with contamination and transmission of antibiotic resistance in order to assess the remedial effects of these factors. Thus, the establishment of surveillance and control systems could also help to improve the quality of products intended for human consumption and to preserve public health. 2023-03-28T00:00:00Z