Scielo RSS <![CDATA[Austral journal of veterinary sciences]]> vol. 50 num. 3 lang. es <![CDATA[SciELO Logo]]> <![CDATA[To export or not to export cattle, that is the question]]> <![CDATA[Effect of Mycobacterium bovis infection in cattle on changes in appetite-related hormones]]> Abstract: There are limited studies available for appetite-related hormonal changes in bovine tuberculosis, therefore the purpose of this study was to determine the changes in appetite-related hormones (leptin, ghrelin, and nesfatin -1) of cattle with tuberculosis and to clarify their possible roles. A total of 30 cattle, comprising 15 clinically healthy cattle and 15 cattle infected with tuberculosis were enrolled in the study. The diagnosis of tuberculosis was performed by tuberculin skin test, and changes in the concentrations of ghrelin, leptin, nesfatin-1, lipid profile and muscular enzymes in cattle with tuberculosis were determined. It was found that nesfatin-1, ghrelin and muscular enzymes concentrations were higher in bovine infected with tuberculosis than in the healthy controls. On the other hand, leptin, triglyceride, low density lipoprotein (LDL), high density lipoprotein (HDL), and total cholesterol levels were all lower in the tuberculosis group when compared to the control group. In this study, we detected serum nesfatin-1 concentrations for the first time in Mycobacterium bovis infection in addition to the other known appetite-related hormones. The data suggest that increased concentrations of nesfatin-1 may play a role in weight loss in bovine tuberculosis, but there is a need for further studies to determine its exact role in the etiopathogenesis of bovine tuberculosis. <![CDATA[Some cashmere characteristics of hair goats raised in Van province]]> Abstract: The aim of this study was to uncover certain physical properties of cashmere fibres obtained from goat hair in Van, Turkey, and determine their usability in the textile sector. For this purpose 36 hair goats were studied, aged between two and three years old, obtained from breeders at Van Yüzüncü Yil University Livestock Facilities and the Özalp and Başkale districts of Van, with twelve goats being taken from each breeder. The sample of hairs were collected by combing three areas of the goat’s body (shoulder, flank and rump). The analysis indicated that the cashmere length of two-year-old hair goats was longer than that of three-year-old hair goats. There was no linear relationship between the differences among cashmere elasticity and yield properties and the altitude levels of the districts. It was determined that the fibre diameter of the cashmere of hair goats in Van was acceptable for the textile sector and competitive with major cashmere-producing countries. <![CDATA[Cardiac troponin I, fructosamine, and cardiovascular parameters in dogs with diabetes mellitus]]> Abstract: Diabetes mellitus (DM) is a common endocrinopathy in dogs, however, the relationship between canine DM and cardiomyopathy is still unclear. The aims of this study were: to evaluate serum troponin I concentrations in diabetic dogs under treatment with insulin; to evaluate the hypothesis that the time of DM diagnosis could influence the troponin I concentration; and to evaluate the relationship between biochemical and cardiovascular parameters in diabetic dogs. This is a cross-sectional study including diabetic canine patients under NPH insulin treatment. Troponin I concentration, systolic blood pressure (SBP), complete blood count, serum fructosamine concentration, biochemical profile, and Doppler echocardiography assesments were carried out in each patient, as well as in age- and size- matched healthy controls. All diabetic dogs had concentrations of troponin I below the limits of detection of the assay. There was no difference between cardiovascular parameters between diabetic and healthy control dogs. There was no correlation between time of DM diagnosis and cardiovascular parameters. There was a significant positive correlation between SBP and fructosamine in diabetic dogs (r=0.54; P&lt;0.01). Diabetic dogs receiving insulin treatment, regardless of the time of diagnosis, do not have significantly elevated serum troponin I. The results also suggest that fructosamine levels can be associated with high blood pressure, suggesting a possible correlation between fructosamine levels and vascular complications. <![CDATA[Report of first isolation of the zoonotic Arcobacter species from swine fecal samples in Ecuador]]> Abstract: Arcobacter butzleri, A. cryaerophilus , A. skirrowii and A. thereius are recognised as emerging zoonotic agents, recovered from animals and human beings. The information available about Arcobacter species in Latin America is scarce. Among domestic animals, swine are considered important reservoir and source of contamination of different Arcobacter species. This communication reports the first simultaneous isolation of the four zoonotic Arcobacter species in Ecuador. Preliminary identification was done by phenotypic characteristics and definitive species identification was made by multiplex PCR method. Further investigation about the prevalence, distribution, ecology and interactions with human beings of these species is required. <![CDATA[Immunohistochemical diagnosis of Caprine alphaherpesvirus 1 (CpHV-1) in Mexico]]> Abstract: The aim of this study was to identify the presence of Caprine alphaherpesvirus 1 (CpHV-1) in goat organs with suggestive injuries caused by the virus. A descriptive and retrospective study was performed, selecting necropsy cases suggestive of CpHV-1infection during a period of five years. Forty eight suspected cases were obtained, to which the immunohistochemistry technique with a CpHV-1 monoclonal antibody, was applied. We observed positivity in 24 goatling cases under 15 days (50%) and in 4 cases of adult animals (8.3%). The presence of CpHV-1 in goats from the Mexican plateau is confirmed. <![CDATA[Epidemiological study of canine mammary tumors: age, breed, size and malignancy]]> Abstract: A retrospective study was carried out on 858 female canine patients who were attended at the Surgery Service of the Clinical Veterinary Hospital of the University of Extremadura (Spain), during a period of 5 years (2008-2012). This study aims to determine the incidence of mammary tumors in the canine species of this region together with the analysis of several epidemiological variables (breed, age, and size) and the histopathological variable tumor malignancy. Three groups of patients were considered: (I) general group including all patients (n=858), (II) oncological patients (n=376), and (III) patients with mammary tumors (n=227). Oncology represented the most common pathology for female dogs (n=376, 43.82%), with mammary tumors being the most frequent neoplasms (n=227, 60.37%). Mixed breed dogs were more likely than purebred dogs to suffer from mammary tumors, with these tumors being more frequently malignant. It was also found that large-sized patients show a greater predisposition to malignant mammary tumors. In patients with tumors, age at diagnosis was significantly associated with a higher malignancy rate. The results of the study confirm the importance of oncology in the veterinary clinic in the region. Mammary tumors represent the most frequently diagnosed neoplasia in female dogs. Old age, mixed breed and large size predispose to its development and represent risk factors for malignancy. <![CDATA[Exploratory study on characteristics of oyster shell and eggshell quality in Chile]]> Abstract: This study aimed to characterise oyster shell and white egg shell quality in Chile. The work was based on samples of both oyster shell and eggs, which were sourced from 7 laying farms over a period of several weeks during the production stage. Oyster shells were characterised according to their calcium content and granulometric distribution, and were classified in three types of particles (mm): coarse (&gt;1.7), medium-sized (0.9-1.6) and fine (&lt;0.8). Eggs were characterised, according to hen age and farm, by determining their weight, eggshell resistance, and thickness. Currently, Chilean farms use oyster shells whose calcium content ranges from 32.5% to 34.8%, and their granulometric distribution is 51.7% coarse, 27.6% medium-sized and 18.1% fine particles. Thus, the predominant form of oyster shell traded by major companies in Chile is the coarse type of particles, followed by medium-sized and fine particles. Similar calcium contents were observed for oyster shell samples sourced from different farms. Similar weight of the eggs were found for all farms (60-64 g). Contrarily, farms presented different results for eggshell resistance (3,934-5,057 g) and eggshell thickness (0.322-0.376 mm). Eggshell resistance and thickness values were within the expected range for white hen eggs.