Schweizer Archiv fur Tierheilkunde最新文献

{"title":"Udder morphology and milk yield of Lacaune dairy sheep.","authors":"P Makovicky, M Nagy","doi":"10.17236/sat00350","DOIUrl":"10.17236/sat00350","url":null,"abstract":"<p><strong>Introduction: </strong>This study analyses udder measurements in Lacaune ewes, with a particular focus on the effects of the control year (2022-2023) and lactation order on various udder traits. The number of Lacaune ewes included in the study ranged from 57 to 86 for various variables, while the number of control measurements was between 49 and 111. Significant year-on-year variations were observed in teat size and position, with teats generally decreasing in size with age. The control year had a significant impact on udder length, width, and depth, as well as teat length and angle. Our findings indicate that optimal teat angles for milking are around 45°. The order of lactation (parity) had a significant impact on udder size, particularly udder depth and length, which increased by the third lactation. The older ewes exhibited longer teats and a more horizontal teat position, indicative of larger udder cisterns. The results of the udder cistern measurements taken using different methods showed that cistern size tends to increase with age. It was found that larger cisterns correlate with higher milk yields and faster milk letdown. Although the impact of lactation order on cistern measurements was not statistically significant, the 'from the bottom' method proved more effective for assessing cistern size. There was considerable variation in the milkability parameters, including machine-milked and total milk yield. The correlation between udder attachment and milk production was significant, which highlights the importance of a strong udder attachment for efficient milk yield. A notable positive correlation between udder width and milk production indicates that wider udders yield more milk in shorter periods. The study findings indicate that larger udder cisterns, particularly on the left side, are associated with greater milk production. As ewes age and progress through lactations, udder morphology improves, facilitating better milkability. These findings provide a scientific basis for the use of specific udder traits in the selection of ewes with enhanced milk production potential for the Lacaune breed.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"25 1","pages":"225-238"},"PeriodicalIF":0.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82822208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occlusion of a patent ductus arteriosus using an Amplatzer vascular plug II in a kitten.","authors":"M Baron Toaldo, N Schreiber","doi":"10.17236/sat00351","DOIUrl":"10.17236/sat00351","url":null,"abstract":"<p><strong>Introduction: </strong>A five-month-old kitten has been admitted to catheter assisted intravascular occlusion of a patent ductus arteriosus (PDA). Considering the small size of the patient, and of the femoral artery, a transvenous approach through the femoral vein was attempted. The PDA could be successfully occluded using an embolization device called Amplatzer vascular plug II. This device can be deployed retrogradely through the venous system, using a catheter, that must be passed through the caudal vena cava, right atrium and ventricle, and pulmonary artery, reaching the PDA. The intervention was assisted by fluoroscopic and transesophageal echocardiographic guidance. The cat recovered uneventfully from the procedure, and it was discharged the following day. Transvenous embolization of PDA can be successfully performed also in small patients or animals with comparably small peripheral arteries, like cats.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"135 1","pages":"240-244"},"PeriodicalIF":0.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77295649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Work design approach to reduce stressors in small veterinary practices].","authors":"C Herren, O J Glardon, K Wolff","doi":"10.17236/sat00349","DOIUrl":"10.17236/sat00349","url":null,"abstract":"<p><strong>Introduction: </strong>Given the increasing shortage of skilled workers, working conditions in the veterinary sector are of central importance for the motivation and satisfaction of employees. Solutions to reduce stressors are important to keep skilled workers in their jobs in the long term and to counteract migration out of clinical work. An innovative approach to work design was developed as part of a master's thesis. The thesis was based on qualitative studies and structured according to defined characteristics, which can help to reduce stressors in small veterinary practices. The study aimed to develop an understanding of specific challenges in veterinary practices, as comparable research literature for the veterinary sector in Switzerland is limited. The theoretical basis of the work was based on findings from the human healthcare sector, which has similar problems. The qualitative data was collected through seven guided expert interviews, the transcripts were analyzed using Mayring's method. The resulting recommendation of this study can serve as a guideline for veterinary practices and aim to improve working conditions promoting employee satisfaction. The results not only contribute to the theoretical foundation in the area of work design, but also provide concrete impulses for small veterinary practices to increase their attractiveness and employee satisfaction.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"62 1","pages":"184-191"},"PeriodicalIF":0.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90223816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Influence of agents for permanent drinking water disinfection on the fermentation performance of rumen microorganisms in ruminants].","authors":"A Stettler, B Berchtold, S Probst","doi":"10.17236/sat00347","DOIUrl":"10.17236/sat00347","url":null,"abstract":"<p><strong>Introduction: </strong>Good quality drinking water and adequate water intake is essential in ensuring the health of livestock. Various factors can cause the formation of a biofilm in water pipes that acts as a reservoir for many different pathogens. The addition of disinfection agents, such as chlorine dioxide or peracetic acid, is proven to improve the quality of permanent drinking water. To date this method has primarily been used in pig and poultry housing, however, it is increasingly under discussion for use in cattle husbandry. As the effects of disinfectants in drinking water on rumen fermentation are not yet known, we performed a digestibility test using the Hohenheim Feed Value Test to determine the in vitro digestibility of organic matter (IVOMD). The influence of five different concentrations of chlorine dioxide and peracetic acid disinfectants on the IVOMD of hay and wheat were tested and rumen bacteria were counted under a microscope. The use of chlorine dioxide showed no major changes in the IVOMD of hay and wheat. At the recommended concentration of 0.5 mg/l, the IVOMD relative to the control was 97,1 % for hay and 102,7 % for wheat. The number of rumen bacteria was not affected by the use of chlorine dioxide. Conversely, the use of peracetic acid led to a significant reduction in rumen fermentation. At the recommended concentration of 15-25 mg/l (dosed at 15 mg/l and 25 mg/l), the IVOMD relative to the control was 38,2 % and 38,4 % for hay and 50,4 % and 22,4 % for wheat. The number of rumen bacteria also decreased significantly. Chlorine dioxide seemed to have little to no disinfection effect on in vitro ruminal fermentation, however, the exact mechanisms could not be determined in the present study. This trial shows that disinfectants for permanent drinking water disinfection in cattle farming should be used with caution. In particular, disinfection agents containing peracetic acid may impair fermentation of rumen microbes. Further research is required to determine if the results of the present in vitro study are transferable to practice.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"35 1","pages":"166-173"},"PeriodicalIF":0.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80173205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Temporal development of hypoxia markers in brachycephalic and -mesocephalic dogs after short physical exercise].","authors":"D A Koch, J Wenk, S Michel","doi":"10.17236/sat00348","DOIUrl":"10.17236/sat00348","url":null,"abstract":"<p><strong>Introduction: </strong>To objectify the oxygen debt in dogs with brachycephalic upper respiratory syndrome, eight mesocephalic dogs were subjected to a short running test on four test days and eight brachycephalic dogs on one test day. Blood samples were taken before and immediately after exercise and after 2 and 4 hours to assess cellular oxygenation. For this purpose, two available hypoxia markers, vascular endothelial growth factor (VEGF) and erythropoietin (EPO), were measured. The repeatability of the measurements was checked in the mesocephalic dogs. While VEGF measurement was repeatable over the 4 days of measurement, the EPO measurement was not. The VEGF basal values of the mesocephalic and brachycephalic dogs did not differ (7.6 ± 4.4 pg/ml and 6.9 ± 4.0 pg/ml, respectively). The measurement 4 hours after the running test showed significant differences. The VEGF value in the mesocephalic dogs increased by 42 % to 10.8 ± 4.7 pg/ml, while in the brachycephalic dogs it increased by 220 % to 22.1 ± 15.3 pg/ml. The EPO measurements showed a significant difference between the mesocephalic and brachycephalic dogs at all blood collection times; The basal value in mesocephalic dogs was approx. three times higher than in brachycephalic dogs (30.1 ± 22.6 mU/ml or 11.4 ± 3.5 mU/ml). However, the difference was not significant due to the large scatter in the mesocephalic dogs (p > 0.05). In contrast to the VEGF value, the EPO value did not change over the measurement period. The study shows that the presented method can be used together with the VEGF value for scientific and breeding purposes.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"98 1","pages":"175-183"},"PeriodicalIF":0.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75507275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Genetic defects in Braunvieh cattle of Switzerland - an overview].","authors":"S Glatthard, F R Seefried, A Gentile, J P G Jacinto, C Drögemüller","doi":"10.17236/sat00344","DOIUrl":"https://doi.org/10.17236/sat00344","url":null,"abstract":"<p><strong>Introduction: </strong>Since 2010, genomic selection in Swiss cattle breeding has led to significant progress in the two local Braunvieh populations, Brown Swiss and Original Braunvieh. However, it has also contributed to further inbreeding, leading to an increased risk of outbreaks of monogenic recessive defects. Some long-known inherited diseases such as arachnomelia, spinal muscular atrophy, spinal dysmyelination, Weaver syndrome and renal dysplasia are now of little clinical importance, while new haplotypes and gene variants associated with reproductive disorders have recently been described. These include so-called fertility haplotypes and genetic diseases that rarely or never occur homozygous because the affected animals die shortly after birth or early in pregnancy. This work provides an overview of the known recessive genetic defects in Swiss Braunvieh cattle. Data from 56, 000 Swiss breeding cattle on 12 genetic defects show that known inherited diseases in Braunvieh only occur very sporadically (defect allele frequency < 1 %). Only the recently described achromatopsia (Original Braunvieh haplotype 1) has a relevant defect allele frequency of over 7 % and should be taken into account for mating plans in order to avoid calves with day blindness. In addition, the Braunvieh haplotypes 6 and 14 and the Original Braunvieh haplotypes 4 and 9 occur between 2-6 % and the mating of heterozygous carriers should be avoided in order to avoid homozygous offsprings that are presumably not embryonically viable. The further spread of known genetic defects can be prevented through comprehensive genotyping of the breeding populations and the careful selection of breeding animals, recently also with the help of digital apps for mating planning. Thus, genetically caused reproductive losses or the number of affected animals can be reduced, animal health and welfare can be sustainably improved through selective breeding.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"167 2","pages":"98-108"},"PeriodicalIF":0.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Evaluation of different cross-matching techniques in comparison to the tube agglutination method in dogs].","authors":"L Herter, C Weingart, N Merten, N Bock, B Kohn","doi":"10.17236/sat00345","DOIUrl":"https://doi.org/10.17236/sat00345","url":null,"abstract":"<p><strong>Introduction: </strong>Cross-matching is used to determine the serological compatibility of donor and recipient blood. This procedure is used to detect possible antibodies against the donor's erythrocytes, thereby reducing the risk of immunological transfusion reactions. Various methods are available for cross-matching: In addition to the tube agglutination method, which is often viewed as a reference method, gel and immunochromatographic methods are available. In this study, a gel tube method, an antiglobulin-enhanced gel tube method, and an immunochromatographic method were evaluated in comparison to the tube agglutination method in 28 different major cross-matches. The evaluation resulted in 85,7 % agreement between the antiglobulin-enhanced gel tube method, in 60,7 % agreement between the gel tube method and in 35,7 % agreement between the immunochromatographic method and the tube agglutination method. Considering the macroscopically positive test results alone, the agreement between the tube agglutination method and the antiglobulin-enhanced gel tube method was 100 %, the gel tube method 62,5 % and with the immunochromatographic 0 %. Using the antiglobulin-enhanced gel tube method, 4/9 weakly positive cross-matches, which were positive with a microscopic degree of agglutination of 1+ - 2+ using the tube agglutination method, were compatible. In all other cross-matches with a higher degree of agglutination, the results were consistent with those of the tube agglutination method. Transfusion of incompatible blood products may result in hemolytic transfusion reactions. However, the clinical relevance of microscopically weakly positive cross-matches is unclear. The application of the various test kits took significantly less time compared to the tube agglutination procedure. Due to the strong agreement and reduction in required time, the antiglobulin-enhanced gel tube method offers a good alternative to the reference method, especially in emergency situations. On the other hand, there was only a weak agreement between the gel tube and no agreement between the immunochromatographic method and the reference method.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"167 2","pages":"109-119"},"PeriodicalIF":0.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screening for naturally occurring hypothyroidism in adult cats: A prospective multi-center study in Central Europe.","authors":"F N Leuthard, A Carranza Valencia, M Wenger, F Tschuor, F K Zeugswetter","doi":"10.17236/sat00346","DOIUrl":"10.17236/sat00346","url":null,"abstract":"<p><strong>Introduction: </strong>Research on naturally occurring hypothyroidism in adult cats is limited to 16 reported cases in the last three decades, highlighting the need for more comprehensive studies. This prospective multicenter study aimed to identify cases of spontaneous primary hypothyroidism (SPH) in adult cats presented over a one-year period . Staff members of two university hospitals and one private referral clinic screened for cats aged older than one year showing clinical signs suggestive of feline hypothyroidism including obstipation, obesity/weight gain, lethargy, goiter size, skin changes or mild azotemia. They were instructed to proceed with endocrine investigations if low or low-normal total T4 (TT4) concentrations were detected, using in-house analyses at two locations and external analyses at one university hospital. The continuative diagnostic investigations consisted primarily of thyroid-stimulating hormone (TSH) measurements using leftover samples and TT4 reevaluation. Additional cats with possible SPH were recruited by screening the local documentation systems for low to low-normal TT4 concentrations recorded during the study period. Low (n = 253, 18,3 %) to low-normal (n = 377, 27,3 %) TT4 concentrations were observed in 630 (45,6 %) of 1382 cats. Of these 630 possible SPH cats, 566 (89,8 %) cats were excluded for the following reasons: TT4 was measured to rule out hyperthyroidism (299 cats, 47,4 %), they were treated with drugs that lower TT4 concentrations (anti-thyroid medications: 155 cats, 24,6 %; other drugs: 95 cats, 15,1 %), or follow-up investigations could not be conducted (17 cats, 2,7 %). In 64 (10,2 %) cats of the 630 cats with low or low-normal TT4 concentration, SPH was considered a realistic differential diagnosis based on clinical signs and further endocrine investigations were recommended. SPH was excluded by TSH (n=55) or repeated TT4-measurements (n=8). Hypothyroidism was diagnosed in one cat with palpable bilateral goiter and suspected congenital dyshormonogenesis. Results suggest that SPH remains rare and further endocrine investigations e.g. TSH measurement are needed to find additional cases without any clinical suspicion.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"28 1","pages":"121-128"},"PeriodicalIF":0.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81004034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnosis and management of a more advanced stage of preclinical myxomatous mitral valve disease in dogs without echocardiography.","authors":"M Baron Toaldo","doi":"10.17236/sat00438","DOIUrl":"10.17236/sat00438","url":null,"abstract":"<p><strong>Introduction: </strong>Myxomatous mitral valve disease (MMVD) is the most common cardiac disease in dogs. Appropriate diagnosis and staging can be performed by means of an echocardiographic examination. Early disease stages might be accompanied by valvular insufficiency and, in more advanced phases, by cardiac dilatation. A correct diagnosis of this preclinical phase and identification of cardiac enlargement should be carried out in order to advise appropriate medical treatment. When echocardiography is not available or declined by the dog's owners, alternative methods to identify the disease and predict clinically relevant cardiomegaly, can be performed. Among these, cardiac auscultation and assessment of heart murmur intensity, cardiac dimensions obtained by thoracic radiography, by means of vertebral heart size, and cardiac biomarkers, in particular N-terminal pro-B-type natriuretic peptide (NT-proBNP), can be carried out as single tests or in combination, in order to identify dogs with increased risk of congestive heart failure, and needing an early treatment with pimobendan. In particular, a heart murmur intensity ≥3/6 (moderate or louder), a vertebral heart size ≥11,5 units obtained from a latero-lateral thoracic radiographic view, and plasma concentrations of N-terminal pro-B-type natriuretic peptide value > 1100 pmol/l, are findings that might suggest presence of clinically relevant cardiomegaly with a good specificity. A practical algorithm to guide clinicians in managing dogs with suspicion of valvular disease has been created, starting from clinical examination, and using the aforementioned additional tests in order to advise the appropriate controls and therapy.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"166 12","pages":"619-631"},"PeriodicalIF":0.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Retrospective study of the effectiveness of human tyrosinase vaccination in eight horses].","authors":"S Brunner, A E Fürst, M A Jackson","doi":"10.17236/sat00340","DOIUrl":"10.17236/sat00340","url":null,"abstract":"<p><strong>Introduction: </strong>Dermal melanoma is a common neoplastic disease in horses, which occurs particularly in gray horses. There are various local and systemic therapeutic approaches to treat this skin tumor. Vaccination with human tyrosinase, ONCEPT ® vaccine, is a newer type of systemic melanoma therapy. In this study, the effectiveness of this ONCEPT ® vaccine was retrospectively examined in eight treated horses. In half of the horses (4) a positive change in tumor growth in the sense of retardation, stagnation and, in one of these horses, even reduction in the size of the melanomas was observed. Of the remaining four horses, no change was found in three horses and an acceleration in growth was found in one horse. Half of the treated animals (4) showed side effects associated with the vaccine, three had mild and one moderate to severe side effects.</p>","PeriodicalId":21544,"journal":{"name":"Schweizer Archiv fur Tierheilkunde","volume":"166 12","pages":"648-656"},"PeriodicalIF":0.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}