Brazilian journal of veterinary medicine最新文献

{"title":"Comparison of preoperative fluid therapy protocols associated with inhalational or total intravenous anesthesia for anesthetic procedures in dogs with sepsis.","authors":"Vírgínia Conceição Tavares Lima,&nbsp;Anna Julia Rodrigues Peixoto,&nbsp;Maria Eduarda Dos Santos Lopes Fernandes,&nbsp;Lucinéia Costa Oliveira,&nbsp;Ana Carolina de Souza Campos,&nbsp;Ágatha Ferreira Xavier de Oliveira,&nbsp;Naiara Vidal Stocco,&nbsp;Cristiane Divan Baldani,&nbsp;Felipe Farias Pereira da Câmara Barros,&nbsp;Cássia Maria Molinaro Coelho","doi":"10.29374/2527-2179.bjvm001222","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001222","url":null,"abstract":"<p><p>This randomized clinical trial aimed to evaluate different fluid therapy protocols associated with inhalational or total intravenous anesthesia in the cardiorespiratory stability of bitches with sepsis subjected to a surgical procedure to control the infectious focus. Thirty-two bitches diagnosed with pyometra and sepsis and treated at the University Veterinary Hospital between 2018 and 2019 were recruited. After admission, diagnosis, clinical, and laboratory evaluation, patients were randomly distributed into the following groups: propofol 5 (P[5]: preoperative restrictive fluid therapy-5mL/kg/h and intravenous general anesthesia); propofol 10 (P[10]: preoperative liberal fluid therapy-10mL/kg/h and intravenous general anesthesia); and isoflurane 5 (I[5]: preoperative restrictive fluid therapy-5mL/kg/h and inhalational general anesthesia). Lactate on admission (LAC1) and release (LAC2), heart rate (HR), respiratory rate (RR), systolic blood pressure (SBP), rectal temperature (RT), oxygen saturation (SpO₂), and carbon dioxide extraction rate (EtCO₂) were analyzed at PRE, T10, T20, T30, T40, T50, TEXT, and TDIS. Clearance of 20% of lactate occurred in 18 dogs, with the P[10] group displaying the best performance. There was no statistical difference in vasopressor requirements among the groups. Liberal fluid therapy showed greater cardiovascular stability than restrictive therapy in the perioperative period. Regarding general anesthesia, isoflurane showed greater cardiorespiratory stability than propofol during anesthetic maintenance. In conclusion, although the three proposed protocols are safe and there is no difference in their superiority, some observed changes may be relevant and considered when it is possible to individualize the therapy for the patient.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":" ","pages":"e001222"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f9/f8/bjvm-44-e001222.PMC9477224.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40372773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Socioeconomic profile, animal care, sanitary practices, and knowledge about parasites among owners of domestic dogs and cats treated in Rio de Janeiro city.","authors":"Igor Falco Arruda,&nbsp;Yasmin Abi-Chahin Mendes,&nbsp;Thamires Francisco Bonifácio,&nbsp;Irving Martins da Silveira Gonçalves,&nbsp;Patricia Riddell Millar,&nbsp;Alynne da Silva Barbosa,&nbsp;Luiz Cláudio de Souza Abboud,&nbsp;Maria Regina Reis Amendoeira","doi":"10.29374/2527-2179.bjvm001822","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001822","url":null,"abstract":"<p><p>Urban canine and feline populations are expanding worldwide, a fact that can boost the transmission of zoonotic parasites. Thus, it is necessary understanding dog and cat owners' profile, as well as their perceptions about zoonoses, to develop preventive strategies based on the One Health approach. The aim of the current study is to compare the profile of dog and cat owners, whose domestic pets were treated at Jorge Vaitsman Veterinary Medicine Center, Rio de Janeiro, Brazil. Dog and cat owners, whose domestic pets were treated in the routine service of the aforementioned medical clinic, from August 2017 to November 2018, filled a structured questionnaire comprising closed questions in order to collect information about their socioeconomic profile, hygiene habits, animal care and knowledge about parasites. Comparative analysis was applied to data collected from dog and cat owners, based on using Fischer's Exact Test or Pearson's Chi-square. In total, 350 individuals - 244 dog owners and 106 cat owners - filled the questionnaire. The comparative analysis of socioeconomic profile, animal care, sanitary practices and knowledge about parasites did not show differences between dog and cat owners (p≥0.05). Animal vaccination and deworming practices were significantly more prevalent among dog owners than among cat owners (p≤0.05). Overall, respondents have shown lack of knowledge about parasitic zoonoses. Results in the current study have evidenced the need of mediating and promoting information about potentially zoonotic parasitic agents among domestic pet owners, as well as the key role played by veterinarians as mediators of primary prevention measures against these agents.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":" ","pages":"e001822"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f7/8b/bjvm-44-e001822.PMC9477225.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40372774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and blood count findings in dogs naturally infected with <i>Dirofilaria immitis</i>.","authors":"Alexandre José Rodrigues Bendas, Bruno Alberigi, Suzane Galardo, Norma Labarthe, Flavya Mendes-de-Almeida","doi":"10.29374/2527-2179.bjvm001922","DOIUrl":"10.29374/2527-2179.bjvm001922","url":null,"abstract":"<p><p><i>Dirofilaria immitis</i> is a nematode that infects canids worldwide as well as other mammalian species, including humans. Worms and dogs are well adapted to one another, making dogs the best urban host for the parasite. Nevertheless, 30% of dogs do not sufficiently present microfilaremia, that is, the low larval load impairs transmission by mosquitoes and diagnosis by its detection in the blood samples. Therefore, the canine diagnosis must always include a microfilaria test and serological tests to detect adult worm antigens. To describe the clinical findings in naturally infected dogs in Rio de Janeiro, 34 dogs were included in the study. All dogs were evaluated for history, anamnesis, physical examination, complete blood count (CBC), <i>D. immitis</i> testing for antigens (ELISA test SNAP 4Dx Plus®), and microfilarial burden. The most frequent complaint from the owners was coughing (14.7%, 5/34). The most common CBC finding was eosinophilia (29.4%), followed by thrombocytopenia (26.5%) and neutrophilia (14.7%). Of the 34 animals, 91.2% were microfilaremic, with a mean count of 11.939 microfilaria/mL. Veterinarians working in areas endemic to <i>D. immitis</i> should always undergo screening tests and pulmonary auscultation, and increased expiratory sounds, even in the absence of coughing, can be considered a sign of the disease, along with eosinophilia, thrombocytopenia, and neutrophilia.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e001922"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/21/64/bjvm-44-e001922.PMC9432855.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9151427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bovine brucellosis seroprevalence and flow network analysis in slaughterhouses in the state of Ceará.","authors":"Luenny Carla Silva Dos Santos Carvalho de Araújo, Mateus Matiuzzi da Costa, João Alves do Nascimento, Francisco Dyrlley Andrade da Silva, Rodolfo de Moraes Peixoto","doi":"10.29374/2527-2179.bjvm003521","DOIUrl":"10.29374/2527-2179.bjvm003521","url":null,"abstract":"<p><p>The present study aimed to assess the prevalence and risk factors associated with bovine brucellosis in slaughterhouses in the state of Ceará using spatial distribution and flow network analysis. Four slaughterhouses were sampled in Ceará: two under municipal inspection and two under state inspection. Blood samples were randomly collected from bovine animals, resulting in a total of 964 samples. The collected sera were subjected to the Acidified Buffered Antigen (AAT) test, and the complement fixation test (FC) was performed for positive cases. An epidemiological questionnaire was applied to 38 producers who slaughter animals at the sampled facilities to assess the risk factors for brucellosis. An apparent prevalence of 1.55% (15) was found in the AAT test and 0.2% (n=2) in the FC test. A higher percentage of reactive animals was observed (66.6%) in properties where cattle farming is not the main activity, with OR = 4.75. The absence of contact with neighboring animals is a factor associated with protection, with a lower prevalence of seroreactive animals (23.5%) when animals were raised without contact with others (OR = 0.30). Therefore, bovine brucellosis in herds and animals can be considered low in the studied region and under all production systems. Nevertheless, despite the importance of this disease to the economic and public health aspects and the advances of the PNCEBT Program, brucellosis is still circulating in Ceará.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e003521"},"PeriodicalIF":0.0,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/07/da/bjvm-44-e003521.PMC9183224.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9145094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hematological and biochemical values in Breton breed horses in Brasília-DF.","authors":"Fábia Fernanda Cardoso de Barros da Conceição,&nbsp;Brunna Helena Vidal de Mattos,&nbsp;Paula Aguiar Sá,&nbsp;Tatiana Guerrero Marçola,&nbsp;Gilmara Araújo da Silva,&nbsp;Heitor Castro Alves Teixeira,&nbsp;Rita de Cássia Campebell","doi":"10.29374/2527-2179.bjvm001122","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001122","url":null,"abstract":"<p><p>Due to the scarcity of information on Breton horses, the objective was to study hematobiochemical values of this breed. Blood samples were collected from 29 Bretons, males and females, of different ages, in Brasília-DF, distributed into groups, according to age, without distinction of sex (G1): animals from 4 to 9 years old (n=16) and (G2): from 10 to 26 years old (n=13). The horses were also distributed into males and females for comparisons between the sexes. Values for red blood cells, hemoglobin, creatinine, and urea were statistically higher in females. Fibrinogen was higher in males. Lymphocyte values were higher in G1, but mean corpuscular volume, monocytes, neutrophils, and GGT in G2 were higher than G1. The hematocrit value differed between the ages of the females and was higher than that of the males, while the older male animals showed higher values than the young animals. Females presented lower platelet values than males, with older females having higher platelet values than younger females, in the same way as males. G1 females had the highest leukocyte values. The leukocyte values in males of G2 were higher than those of G1. This same behavior occurred for lymphocytes, eosinophils, and creatine kinase. Considering the albumin and aspartate aminotransferase variables, females had the highest values in the group of animals aged 4 to 9 years. Bretons are considered cold-blooded animals, which is consistent with the observed blood count values. However, it is concluded that these horses have biochemical values similar to warm-blooded breeds.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e001122"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/54/ff/bjvm-44-e001122.PMC9179188.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9145098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical findings and response to treatment of 17 cases of tetanus in horses (2012-2021).","authors":"Ubiratan Pereira de Melo,&nbsp;Cintia Ferreira","doi":"10.29374/2527-2179.bjvm005321","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005321","url":null,"abstract":"<p><p>Tetanus is a distressing and often fatal disease caused by exotoxins released by the bacterium <i>Clostridium tetani</i>. <i>Clostridium tetani</i> is a commensal of the gastrointestinal tract of humans and domestic animals, and its spores are highly resistant to environmental changes, acid, and alkali and may persist in the soil for many years. The disease is characterized by generalized muscular rigidity and spasms, hyperesthesia, convulsions, respiratory arrest, and death. Horses are the most susceptible domestic animals. Treatment is typically directed towards elimination of the source of the toxin, neutralization of any unbound toxin, establishment of antitoxin immunity, control of neuromuscular derangements, and relief of pain. This study described the clinical findings and therapeutic protocols of 17 horses with tetanus, treated between March 2012 and December 2021. The diagnosis of tetanus was based on the history and clinical examination findings of the animals. All horses received a treatment pattern composed of the administration of tetanus serum (50,000 UI, intravenously, followed by three injections of the same dose at 48-h intervals), procaine penicillin (25,000 UI kg, intramuscularly, BID, for 10 days), and muscle relaxant (acepromazine 0.02-0.05 mg/kg, intramuscularly, BID, for 8 days). Support therapy based on hydroelectrolytic replacements, feeding via a nasogastric tube, and assistance in the maintenance of the quadrupedal position were performed when needed. The mortality rate observed in this report was 23.52%. Early diagnosis associated with the instituted treatment contributed the most to the animal recovery.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e005321"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/37/51/bjvm-44-e005321.PMC9183223.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9149292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Canine rabies in Belford Roxo City, Rio de Janeiro, Brazil: a case report.","authors":"Pedro Cupolillo de Faria,&nbsp;Rafael Moreira Ancora da Luz,&nbsp;Clayton Bernardinelli Gitti","doi":"10.29374/2527-2179.bjvm002022","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm002022","url":null,"abstract":"<p><p>Rabies is a highly lethal disease and is considered one of the most important zoonoses worldwide. In Brazil, the rabies cycle in domestic animals is under control. However, there is feedback from the wildlife cycle as many bats are present in the cities and rural areas of the country. This paper reports a case of a dog receiving veterinary assistance that presented with misbehavior and other unusual signs. After clinical evaluation by two veterinarians and a period of hospitalization to perform tests and treatment, the dog died, and the Municipal Health Department was contacted due to the suspicion of rabies. After laboratory testing and sample analysis, the diagnosis of rabies was confirmed. This case demonstrates the importance of veterinarians' qualifications in performing clinical and laboratory diagnoses, such as their knowledge concerning surveillance measures and preventive steps before and after exposure. Reinforcing the significance of maintaining vaccination coverage for rabies and promoting public and private vaccination campaigns in areas that lack vaccination campaigns are useful.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e002022"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/29/b0/bjvm-44-e002022.PMC9432856.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9151428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cryopreserved equine amniotic membrane and its use in cutaneous wounds of horses.","authors":"Marcos Vinícius Dias Rosa,&nbsp;Maurilio Rosa,&nbsp;Paulo de Tarso Landgraf Botteon","doi":"10.29374/2527-2179.bjvm003122","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm003122","url":null,"abstract":"<p><p>This study aimed to evaluate the use of equine amniotic membrane (EAM), frozen indirectly using liquid nitrogen and stored between -10° and -24°C, in the treatment of equine skin lesions. Six healthy female horses, aged 3-10 years, were included in this study. EAM was collected from previously evaluated healthy parturient mares. Wounds were surgically created at the distal ends of the forelimbs. One limb was chosen for treatment, and the contralateral limb was chosen as the control. Pain sensitivity, presence of granulation tissue, secretions, and bleeding after debridement during cleaning were evaluated. Microscopically, the following were evaluated: the integrity of the epithelium, the organization of the connective tissue, the presence of hemorrhage, fibroplasia, epithelial hyperplasia, hyperkeratosis, neovascularization, and the types of cells present. Assessments were performed on days 0, 3, 7, 14, 21, 28, and 63, and the time to complete the lesion closure. Treatment with EAM promoted faster recovery, greater neovascularization, better quality fibroplasia, and less sensitivity to pain than the control group. We concluded that the use of EAM was advantageous compared to the control group.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e003122"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cd/16/bjvm-44-e003122.PMC9754605.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10401539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The COVID-19 pandemic's impact on the practices and biosecurity measures of veterinary medicine professionals in Brazil.","authors":"José Victor Pronievicz Barreto,&nbsp;Elis Lorenzetti,&nbsp;Simone Fernanda Nedel Pertile,&nbsp;Nicolas Peralta Bertasso,&nbsp;Rafaela Machado Dos Santos,&nbsp;Andressa de Melo Jardim,&nbsp;Daniella Aparecida Godoi Kemper,&nbsp;Marilice Zundt,&nbsp;Fabíola Cristine de Almeida Rego","doi":"10.29374/2527-2179.bjvm005221","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005221","url":null,"abstract":"<p><p>Veterinarians, among other health professionals, are considered health professionals at high risk of exposure to and contraction of COVID-19. The main objective of this study is to assess changes in the clinical practices of veterinarians during the COVID-19 pandemic around prophylactic and biosafety measures, as well as to evaluate changes in workload and cost-benefit ratio. An online questionnaire was sent to veterinary professionals from July 2020 to July 2021 using Google Forms. A total of 1134 veterinarians answered the questionnaire on clinical experiences and biosafety practices during the COVID-19 pandemic. Veterinarians changed their routine clinical practices, as there was a reduction in working hours, and applied new patient approaches and advice to their owners, as well as restricting the number of people allowed inside. Biosafety measures were added in their workplaces, with an increase in the use of personal protective equipment. COVID-19 tests were administered at least once in 19.0%, and more than once in 9.5% of the respondents. Flu symptoms were present in 23.8% of the respondents, and 31.0% of the veterinarians attended to COVID-19 positive pet owners. Therefore, most veterinarians altered their routine practices, and some were exposed to sources of COVID-19 infection.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e005221"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fa/48/bjvm-44-e005221.PMC9183226.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9149289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of extended-spectrum beta-lactamases in <i>Escherichia coli</i> isolated from poultry in Rio de Janeiro, Brazil.","authors":"Thereza Cristina da Costa Patricio,&nbsp;Beatriz Oliveira Farias,&nbsp;Gabrielli Stefaninni Santiago,&nbsp;Vinicius Rangel de Salles Souza,&nbsp;Ramon Loureiro Pimenta,&nbsp;Camila Costa de Oliveira,&nbsp;Irene Silva Coelho,&nbsp;Miliane Moreira Soares de Souza,&nbsp;Shana de Mattos de Oliveira Coelho","doi":"10.29374/2527-2179.bjvm001722","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001722","url":null,"abstract":"<p><p>The overuse of antimicrobials in poultry has led to the development and dissemination of multidrug-resistant bacteria in the poultry industry. One of the most effective mechanisms of resistance found in <i>Escherichia coli</i> is the production of extended-spectrum β-lactamases (ESBL); there are several ESBLs, including the TEM, SHV, and CTX-M families. This resistance mechanism and the risks associated with transmitting these resistant microorganisms between animals, the environment, and humans can occur through direct contact and consumption of infected animals. This study aimed to determine the prevalence of <i>E. coli</i> in samples isolated from three broiler farms in Rio de Janeiro, Brazil, and screen the isolates for ESBL genes. The findings of this study demonstrated the presence of ESBL-producing <i>E. coli</i> in all farms studied. The findings of this study highlight the urgency for a program to monitor the poultry industry value chains at the regional level to control the spread of antimicrobial resistance. Therefore, we recommend that the enzyme subtypes produced by bacterial isolates should be determined to effectively characterize the distribution of genes related to antimicrobial resistance.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"44 ","pages":"e001722"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/dc/4d/bjvm-44-e001722.PMC9754608.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10401540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}