Brazilian journal of veterinary medicine最新文献

{"title":"Evaluation of the susceptibility to fipronil of <i>Rhipicephalus microplus</i> larvae from egg masses incubated at different times of oviposition.","authors":"Daniela de Oliveira Rocha,&nbsp;Roxanne Marina da Silva Roque,&nbsp;Thiago de Souza Vieira,&nbsp;Ingrid Lins Raquel de Jesus,&nbsp;Brena Gava Guimarães,&nbsp;Marisa Beatriz da Silva Rocha,&nbsp;Fabio Barbour Scott,&nbsp;Barbara Rauta Avelar","doi":"10.29374/2527-2179.bjvm005922","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005922","url":null,"abstract":"<p><p>The objective of this work was to evaluate the susceptibility of <i>R. microplus</i> larvae from different oviposition times to fipronil. The LPT was performed in sextuplicate, at concentrations of 18.75, 37.5, 75, 150 and 300 µg.mL^-1. The LC₅₀ found for the egg masses incubated with +7, +14 and +21 days were respectively 105.87, 110.71 and 121.22 µg.mL^-1. The larvae originating from egg masses from the same group of engorged females, incubated on different days, presented similar mortality rates compared to the evaluated fipronil concentrations, facilitating the maintenance of laboratory colonies of this tick species.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e005922"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10079253/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9282877","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":"Ozone therapy: protocol for treating canine parvovirus infection.","authors":"Tiago Gonçalves Dos Santos,&nbsp;Jéssica Rodrigues Orlandin,&nbsp;Matheus Ferreira de Almeida,&nbsp;Rodrigo Ferreira Scassiotti,&nbsp;Vanessa Cristina Oliveira,&nbsp;Sarah Ingrid Pinto Santos,&nbsp;Vitória Mattos Pereira,&nbsp;Priscilla Avelino Ferreira Pinto,&nbsp;Clésio Gomes Mariano,&nbsp;Carlos Eduardo Ambrósio","doi":"10.29374/2527-2179.bjvm004622","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm004622","url":null,"abstract":"<p><p>Canine Parvovirus infection is a disease caused by Canine Parvovirus (CPV) that results in hemorrhagic gastroenteritis and secondary infections, mainly in puppies between six weeks and six months old that are not immunized. Since there is no specific treatment for the condition, supportive therapy based on antibiotics, antiemetics, and non-steroidal anti-inflammatory drugs is traditionally used. Ozone therapy is an economical treatment that has bactericidal, fungicidal, and antiviral properties, besides promoting oxygenation and tissue regeneration, as well as anti-inflammatory and analgesic effects, and was used as a complementary therapy in this study. Therefore, four mixed-breed dogs, aged between 2 and 3 months, with no previous immunization against CPV and testing positive for the virus in a rapid test were selected. The animals were randomly distributed into two groups, being 1: the control group (n=2) that received only supportive treatment; and 2: the experimental group (n=2), that in addition to conventional therapy received intravenously 500 mL of ozonized Ringer's Lactate solution. Before treatment and after 24 and 48 hours, the following clinical signs were evaluated: episodes of emesis and diarrhea, weight, hydration, blood glucose level, abdominal pain, and blood count. One control group animal died within the first hours of hospitalization. Both animals in the experimental group presented faster resolution of diarrheal episodes and shorter hospitalization time when compared to the surviving animal that received only supportive treatment. Although further studies are needed, ozone therapy showed promising results for the treatment of canine parvovirus.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e004622"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/9d/67/bjvm-45-e004622.PMC9930911.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10765021","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":"Embryonic development of quail eggs (<i>Coturnix coturnix japonica</i>) in a homemade incubator.","authors":"Adriana Caroprezo Morini,&nbsp;Graciene Conceição Dos Santos,&nbsp;Rosana Tapajos de Oliveira,&nbsp;Thaiza Santos Farias,&nbsp;Ângelo Abaal Lisboa Batista,&nbsp;Alanna do Socorro Lima da Silva","doi":"10.29374/2527-2179.bjvm004322","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm004322","url":null,"abstract":"<p><p>Knowledge of the embryonic development of species such as quail is important for our understanding of its production and reproduction. Quail provides a practical solution to the animal protein shortage problem in developing countries and is an excellent alternative to chicken (Shanaway, 1994). This study evaluated quail embryonic viability by comparing the main morphological changes that occur over the development in a homemade incubator with previous data; the incubator was built using easily accessible and low-cost materials, which allows small producers and communities to develop quail farms as an activity to increase income or even produce a source of animal protein for the community in the Brazilian Amazon region. The homemade incubator measured 40 cm × 42 cm × 32 cm and was constructed with wooden boards, a digital thermostat, and an incandescent lamp. A total of 24 fertile eggs were incubated at a temperature of 37.5 °C and 60% relative humidity; age \"0\" was set at the start of incubation. Two eggs were opened on each day of development, starting from day 5 to day 16 of incubation. After gently opening the eggs, the embryos were removed, separated from the placenta and amniotic fluid, washed with running water, and weighed on a digital scale (SHIMADZU AUY 220 brand and UNI BLOC model). Crown-rump length and other measurements were performed with a digital caliper and the morphological structures were observed using a stereomicroscope (NOVA brand and NOVA ZTX-E model). All eggs opened contained live embryos, indicating that the homemade incubator temperature, relative humidity, and manual turning were adequate to maintain the quail's viability. The morphometric data of the embryos at different developmental time points were similar to those described in the literature. Embryos weighed 0.0069 g at day 5 and 4.7863 g at day 16, and the crown-rump length (CRL) means were 0.368 cm and 3.657 cm, respectively. Weight and CRL increased by 0.434 g and 2.593 cm per day of incubation, respectively. In conclusion, after 16 days of incubation in a homemade incubator, the embryos presented all phases of the development cycle, with appropriate development of weight and height based on the days of incubation without anomaly or external interference. These findings demonstrate that the homemade incubator does not alter the embryonic development of quail embryos in the Brazilian Amazon region.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e004322"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f8/41/bjvm-45-e004322.PMC9809981.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10488570","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":"Dogs infected by <i>Dirofilaria immitis</i>: a threat to the health of human and non-human animals in Rio de Janeiro, Brazil.","authors":"Bruno Alberigi,&nbsp;Esmael Carvalho,&nbsp;Flavya Mendes-de-Almeida,&nbsp;Norma Labarthe,&nbsp;Fabio Barbour Scott","doi":"10.29374/2527-2179.bjvm001723","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001723","url":null,"abstract":"<p><p>This study aimed to investigate the presence of <i>Dirofilaria immitis</i> microfilaremia in dogs from two regions of the state of Rio de Janeiro, Brazil, where heartworm infections are highly prevalent. Blood samples were collected from dogs aged > 12 months, independent of the use of preventatives. All samples obtained and analyzed using Knott's modified test by the investigators. A total of 133 blood samples were tested, and <i>D. immitis</i> microfilariae were detected in 29 of them, resulting in an occurrence of 21.8%. The percentage of dogs with microfilaremia detected raises concerns for pet families, one health professionals, and small animal practitioners. Microfilaremic dogs are the richest source of infection for the mosquitoes, increasing the risk of transmission. Therefore, the stakeholders in One Health must raise concerns regarding the health of wild animals, as wild canids and other species of wild animals are exposed to the risk of <i>D. immitis</i> infection. In addition, humans can get infected and develop human pulmonary dirofilariasis. In conclusion, the presence of dogs with microfilaremia potentiates opportunities for <i>D. immitis</i> transmission, exposing all animals, wild or domestic, human or non-human to the disease.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e001723"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10374293/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9973671","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":"Morphometry and skeletopy of kidneys and renal vessels in <i>Alouatta guariba clamitans</i> (Primates: Atelidae): case reports.","authors":"Shirley Viana Peçanha,&nbsp;Thaís Mattos Estruc,&nbsp;Raquel Batista Junger de Carvalho,&nbsp;Carlos Augusto Dos Santos-Sousa,&nbsp;Paulo Souza-Júnior,&nbsp;Marcelo Abidu-Figueiredo","doi":"10.29374/2527-2179.bjvm005222","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005222","url":null,"abstract":"<p><p>Various animal models are used for research; however, non-human primates are well suited for biomedical research owing to their genetic homology with humans. The objective of this research was the anatomical characterization of red howler's kidneys in view of the scarcity of information in the literature. Protocols were approved by the Committee for Ethics in the Use of Animals at the Federal Rural University of Rio de Janeiro (number 018/2017). The study was conducted at the Laboratory of Teaching and Research in Domestic and Wild Animal Morphology, Federal Rural University of Rio de Janeiro. Specimens of <i>Alouatta guariba clamitans</i> were collected from the Serra dos Órgãos National Park road in Rio de Janeiro and subsequently frozen. Four adult cadavers (two males and two females) were used, identified, and injected with a 10% formaldehyde solution. Later, the specimens were dissected, and measurements and topography of the kidneys and renal vessels were recorded. The kidneys of <i>A. g. clamitans</i> resemble a \"bean seed,\" with a smooth surface. The longitudinal section shows two distinct regions, cortical and medullary; in addition, the kidneys are unipyramidal. The renal arteries emerged from the abdominal aorta as a single vessel posterior to the renal veins. The renal veins drained directly into the caudal vena cava as a single vessel in all specimens.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e005222"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10219613/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9546213","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":"Hemorrhagic prostatic cyst in a dog - case report.","authors":"Bruna Bressianini Lima,&nbsp;Brenda Santos Pompeu Miranda,&nbsp;Denise Jaques Ramos,&nbsp;Bibiana Lopes,&nbsp;Tainara Morais Pereira,&nbsp;Tamara Rodrigues Franco,&nbsp;Ricardo Pozzobon,&nbsp;Rafael Almeida Fighera,&nbsp;Marcus Antônio Rossi Feliciano","doi":"10.29374/2527-2179.bjvm005122","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005122","url":null,"abstract":"<p><p>We present the case of a five-year-old intact mixed breed male dog with hemorrhagic prostatic cysts. The patient presented with hematuria, dysesthesia, and pain on abdominal palpation. Abdominal ultrasound, hematology, urinalysis, and biochemical evaluation tests were subsequently conducted. Laboratory tests revealed cloudy urine with bacteria, and countless red blood cells. On ultrasound examination, the prostate was severely enlarged, with heterogeneous and reduced parenchyma, surrounding a large cavity filled with anechoic material with moderate cellularity. The urinary bladder was markedly distended and had a round, hypoechogenic structure in the lumen. The patient was hospitalized and had significant, irreversible worsening of the clinical symptoms and died. Subsequently, necropsy of the patient was performed and a histopathological diagnosis of benign prostatic hyperplasia associated with the presence of a prostatic hemorrhagic cyst, prostatitis, and chronic cystitis with an intraluminal blood clot was made. To the best of our knowledge, this is the first report to describe the occurrence of a hemorrhagic cyst in a canine prostate, thus bringing important information from clinical and imaging findings to the veterinary routine.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e005122"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6b/44/bjvm-45-e005122.PMC9841916.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10559053","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":"Pyothorax caused by <i>Nocardia</i> sp. in a cat - Case report.","authors":"Juliana de Moraes Intrieri,&nbsp;Gabriela Pereira Salça de Almeida,&nbsp;Isabelle Vilela Bonfim,&nbsp;Fernando Rocha Miranda,&nbsp;Andressa Aparecida Lima Reis,&nbsp;So Yin Nak,&nbsp;Gabriele Bernardo do Amaral,&nbsp;Mário Mendes Bonci,&nbsp;Diefrey Ribeiro Campos","doi":"10.29374/2527-2179.bjvm005522","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm005522","url":null,"abstract":"<p><p>Nocardiosis is an infection caused by ubiquitous opportunistic bacteria and is rare in felines. In retrospective studies of the infection in the species, pyothorax was found in only about 5% of the cases described, with the most frequent forms being cutaneous and subcutaneous. This report describes <i>Nocardia</i> spp. as an etiologic agent of pyothorax in a feline leukemia virus (FeLV)-positive female cat. A 10-year-old female mixed-breed cat, positive for FeLV, with chronic kidney disease IRIS stage 2, was examined with a severe dyspneic onset, suspected of pleural effusion. It also had skin lesions in the interscapular region. The patient underwent thoracentesis, and a dense, creamy, fetid, and flocculated liquid was collected. Radiography was performed after draining the pleural fluid, which showed images suggestive of atelectasis of the left lung lobes and pneumonia. The collected material was sent for analysis, which found that it was a septic exudate. In addition, it was referred for bacterial culture in a special medium due to suspicion of nocardiosis. Long-term treatment with amoxicillin + clavulanic acid resolved the clinical case.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e005522"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812439/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10858451","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":"Linear CT-scan measurements of cerebral ventricles in senile Poodle dogs.","authors":"Glauce Vaz Diniz Araújo,&nbsp;Paulo de Souza-Junior,&nbsp;Shirley Viana-Peçanha,&nbsp;Carlos Augusto Dos Santos-Sousa,&nbsp;Marcia Torres Ramos,&nbsp;Fernanda Coelho Simas Bernardes,&nbsp;Marcelo Abidu-Figueiredo","doi":"10.29374/2527-2179.bjvm004922","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm004922","url":null,"abstract":"<p><p>Breed traits seem to influence the dimensions of the cerebral ventricles in dogs. The ratios between the ventricles and the brain are crucial diagnostic criteria for suspected canine cognitive dysfunction (CCD). This study aimed to establish linear computed tomography (CT)-scan measurements of the cerebral ventricles in 55 Poodle dogs aged >7 years. To this end, cross-sectional CT images were evaluated. The measurements in the whole sample were: height of the right ventricle, 6.0 ± 1.6 mm; height of the left ventricle, 5.8 ± 1.6 mm; width of the right ventricle, 6.9 ± 1.4 mm; width of the left ventricle, 7.0 ± 1.3 mm; height of the third ventricle, 3.4 ± 0.8 mm; height of the right cerebral hemisphere, 39.5 ± 2.0 mm; and height of the left cerebral hemisphere, 40.2 ± 2.6 mm. The average ventricular measurements were higher in dogs older than 11 years (p < 0.05). However, the average ratio of the ventricle height to the height of the brain did not reveal differences between age groups, sex, or antimeres. In addition, none of the images showed fused lateral ventricles. Thus, these data can assist in interpreting ventricle size in senile Poodle dogs (aged >7 years).</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e004922"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10243369/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9600601","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":"Use of selected samples to diagnose a tricky feline viral disease in a cat with uveitis and neurological signs.","authors":"Julio Cesar Neves de Almeida,&nbsp;Heloísa Cristina Teixeira de Carvalho,&nbsp;Lana Isabella Gila,&nbsp;Nathana Beatriz Martins,&nbsp;Matias Pablo Juan Szabó,&nbsp;Aline Santana da Hora","doi":"10.29374/2527-2179.bjvm001223","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm001223","url":null,"abstract":"<p><p>This case involved a 2-year-old neutered male domestic mixed-breed cat that was rescued from the street eight months earlier. The animal presented with weakness, hyporexia, progressive weight loss, fatigue, uveitis, pale mucous membranes, dehydration (7%), and pelvic limb paresis. Aqueous humor was collected for molecular analysis for the differential diagnosis of potential etiological agents [Feline coronavirus (FCoV), Feline leukemia virus (FeLV), Feline immunodeficiency virus (FIV), <i>Toxoplasma gondii</i>, <i>Cryptococcus</i> spp., <i>Felid herpesvirus</i>-1 (FHV-1) and <i>Bartonella</i> spp.] of feline uveitis. The sample was positive by real-time reverse transcription-polymerase chain reaction (RT-qPCR) for FCoV and RT-qPCR and real-time polymerase chain reaction (qPCR) for FeLV and qPCR FIV. The cat was euthanized due to poor clinical outcomes and prognosis. A cerebrospinal fluid (CSF) sample was collected and tested, and the same pathogens were found in the aqueous humor. Small-cell follicular multicenter lymphoma and multifocal pyogranulomatous meningoencephalitis were observed upon histopathological analysis. In this study, aqueous humor and cerebrospinal fluid samples were efficient for the detection of coinfection with FIV, FeLV, and FCoV.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e001223"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10374292/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9964444","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":"Dental and oral cavity alterations in Quarter Horses of Vaquejada: retrospective study of 416 cases (2012-2022).","authors":"Ubiratan Pereira de Melo,&nbsp;Cíntia Ferreira","doi":"10.29374/2527-2179.bjvm000323","DOIUrl":"https://doi.org/10.29374/2527-2179.bjvm000323","url":null,"abstract":"<p><p>Oral and dental diseases are common in horses, as evidenced by the results of incidence studies of dental diseases carried out on abattoir specimens or sports horses. Thus, periodic dental examinations in horses are essential to ensure the maintenance of dental health and proper use of ingested food. A retrospective study of the dental records of 416 Quarter Horses (256 males, 160 females), distributed in the western region of the Rio Grande do Norte, Brazil, was conducted. Horses were examined between July 2012 and August 2022. The variables collected were age, sex, type of diet, dental alterations identified, and history of colic in the last 365 days. The animals were divided into three groups according to age: group I (2 to 6 years old), group II (7to12 years old), and group III (13to 24 years old). Pairwise comparisons were performed using Tukey's correction. The most frequent dental alterations were excessive tip of the tooth enamel, limited/asymmetric lateral excussion, oral ulceration, eruption of the first premolar tooth, and rostral hook. Statistical differences (p<0.05) were observed between the age groups in the following alterations: excessive tip of the tooth enamel, limited/asymmetric lateral excussion, eruption of the first premolar tooth, rostral hook, palatitis, step, caudal hook, retention of deciduous cheek teeth, wave, tartarus, underbite, periodontal disease, and incisors of the dorsal curve. Dental disorders in horses are of major clinical importance.</p>","PeriodicalId":72458,"journal":{"name":"Brazilian journal of veterinary medicine","volume":"45 ","pages":"e000323"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/69/64/bjvm-45-e000323.PMC10359046.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10241028","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}