UltrasonIc diagnosis of inflammation of the umbilical cord structures,persistent urachus and umbilical hernia in calves     

Flöck M 《Berliner und Münchener tier?rztliche Wochenschrift》2003,116(1-2):2-11

  相似文献   

Cell-specific activation of aflatoxin B1 correlates with presence of some cytochrome P450 enzymes in olfactory and respiratory tissues in horse     

Larsson P  Persson E  Tydén E  Tjälve H 《Research in veterinary science》2003,74(3):227-233

Horses may be exposed to aflatoxin B(1) (AFB(1)) via inhalation of mouldy dust, leading to high exposure of olfactory and respiratory tissues. In the present study the metabolic activation of AFB(1) was examined in olfactory and respiratory tissues in horse. The results showed covalent binding of AFB(1)-metabolites in sustentacular cells and cells of Bowman's glands in the olfactory mucosa, in some cells of the surface epithelium of nasal respiratory, tracheal, bronchial and bronchiolar mucosa and in some glands in these areas. Immunohistochemistry revealed that cells expressing proteins reacting with CYP 3A4- and CYP 2A6/2B6-antibodies had a similar distribution as those having capacity to activate AFB(1). Our data indicate that the cell-specific activation of AFB(1) correlates with presence of some CYP-enzymes in olfactory and respiratory tissues in horse.  相似文献   

Use and reliability of the Delvo-P-test     

Hässig M 《Schweizer Archiv für Tierheilkunde》2003,145(2):70-74

The Delvo-P-test (Gist-brocades nr, Delft, The Netherlands) is based on biological detection of antibiotics in the milk. According to the procedure of the manufacture the test is suited for bulk milk processing factories. Problems arise when the test is used on milk samples of a single cow. Buffers, cells, bacteria, cell contents, and desinfection without using antibiotics may give false positive and false negative results. An error up to 44.8% was detected on single cow milk samples. The test is well suited for bulk milk, where the processing of milk follows a biological procedure as for cheese. The use on single cow milk samples to prove absence of antibiotics is not recommended.  相似文献   

Prevalence of Bartonella henselae in young,healthy cats in Sweden     

Engvall EO  Brändström B  Fermér C  Blomqvist G  Englund L 《The Veterinary record》2003,152(12):366-369

  相似文献   

Rectal leiomyosarcoma in a dog and review of gastrointestinal stromal tumours     

Reis-Filho JS  Gonçalves C  Gärtner F 《The Veterinary record》2003,153(7):215-217

  相似文献   

Control of paratuberculosis in Sweden     

Holmström A  Kyhlstedt U  Robertsson JA  Stengärde L 《Acta veterinaria Scandinavica》2003,44(3-4):285-286

  相似文献   

Radiation synovectomy with holmium-166 ferric hydroxide macroaggregate in equine metacarpophalangeal and metatarsophalangeal joints     

Mäkelä O  Sukura A  Penttilä P  Hiltunen J  Tulamo RM 《Veterinary surgery : VS》2003,32(4):402-409

OBJECTIVES: To evaluate the effects of radiation synovectomy (RSYN) with holmium-166 ferric hydroxide macroaggregate (Ho-166 FHMA) on synovium and synovial fluid in normal metacarpo- and metatarsophalangeal joints of horses and to determine intraarticular distribution of radioactivity after Ho-166 FHMA treatment. STUDY DESIGN: Either Ho-166 FHMA or nonradioactive Ho-165 FHMA was injected into metacarpo- or metatarsophalangeal joints. ANIMALS: Six adult mixed-breed horses without any clinical evidence of metacarpo- or metatarsophalangeal joint disease. METHODS: Joints were injected with a single high dose of Ho-166 FHMA (mean, 1,000 MBq/joint) or a nonradioactive Ho-165 FHMA preparation (controls). Clinical examination, arthroscopy, synovial fluid analyses, and histologic studies were performed to detect effects of RSYN. Scintigraphy was used to localize intraarticular distribution of Ho-166 FHMA. RESULTS: Ho-166 FHMA treatment induced joint inflammation leading to regional edema, effusion, and scar tissue formation. Scintigraphy revealed the highest intensity of radioactivity in the proximal plantar joint pouch, at which the Ho-166 FHMA treatment caused multifocal necrosis. In the dorsal joint pouch, however, arthroscopic study and histologic analysis showed very little effect of RSYN. There was no regeneration of synovium evident within 2 months. Synovial fluid protein concentration was significantly (P <.01) elevated, and some residual radioactivity remained for 5 days after Ho-166 FHMA injection. CONCLUSIONS: Injection of a single high dose of Ho-166 FHMA caused multifocal necrosis of synovium and deep, soft-tissue injury in equine fetlock joints. CLINICAL RELEVANCE: Inflamed equine joints with synovial lining hyperplasia could benefit from Ho-166 FHMA-induced radiation synovectomy if excessive scar tissue formation can be avoided.  相似文献   

The attenuated sopB mutant of Salmonella enterica serovar Typhimurium has the same tissue distribution and host chemokine response as the wild type in bovine Peyer's patches     

Reis BP  Zhang S  Tsolis RM  Bäumler AJ  Adams LG  Santos RL 《Veterinary microbiology》2003,97(3-4):269-277

Salmonella enterica serovar Typhimurium is an important cause of enteric infections in farm animals and it is one of the most frequent food borne infections worldwide. Serovar Typhimurium lacking the sopB gene is attenuated for induction of host inflammatory response and fluid accumulation into the intestinal lumen, which correlates with clinical diarrhea. SopB is an inositol phosphate phosphatase, but its exact role in the pathogenesis of salmonellosis is still unclear. We employed the bovine ileal ligated loop model to compare the tissue distribution of a sopB mutant and its wild type parent serovar Typhimurium. Sections of the Peyer's patches were histologically processed and immuno-stained for detection of serovar Typhimurium. In addition, samples were processed for transmission electron microscopy, and the profile of expression of host chemokine and cytokine responses was assessed. Ultrastructurally both strains had the same ability to invade intestinal epithelial cells. No differences were detected in the tissue distribution of the sopB mutant and the wild type organism and both strains elicited the same profile of chemokines and pro-inflammatory cytokines. In conclusion, our results indicate that the attenuation of the sopB mutant is associated with pathogenic mechanisms other than invasion and distribution in host intestinal tissues.  相似文献   

Accuracy of heart rate obtained by auscultation in atrial fibrillation     

Glaus TM  Hässig M  Keene BW 《Journal of the American Animal Hospital Association》2003,39(3):237-239

The accuracy of heart rate estimation by cardiac auscultation over a 15-second period, and the influence of clinical experience on accuracy were evaluated in a dog with chronic atrial fibrillation by test subjects of varying experience. Only 30% of all test subjects provided accurate heart rate estimates. Board-certified specialists, medicine residents, and experienced nurses were significantly more accurate in their estimates than surgery residents and students. Accurate estimates were provided by 12.5% of surgery residents and students, as opposed to 64% of the other test subjects. Auscultatory estimates of heart rate in atrial fibrillation may be significantly inaccurate, and under some circumstances they may not provide a sound basis for making clinical decisions.  相似文献   

Dynamics of porcine circovirus type 2 infection in a herd of pigs with postweaning multisystemic wasting syndrome   总被引：6，自引：0，他引：6  

Rodríguez-Arrioja GM  Segalés J  Calsamiglia M  Resendes AR  Balasch M  Plana-Duran J  Casal J  Domingo M 《American journal of veterinary research》2002,63(3):354-357

OBJECTIVE: To determine the pattern of infection for porcine circovirus type 2 (PCV2) in a herd of pigs with postweaning multisystemic wasting syndrome (PMWS). ANIMALS: 29 sows and 250 pigs. PROCEDURE: Blood samples were collected from all 3-, 7-, and 12-week old pigs and 59 pigs at 28 weeks of age. Pigs that died during the study were necropsied. Porcine parvovirus and PCV2 antibodies were assayed. A polymerase chain reaction (PCR) was used to detect PCV2 genome in serum of selected pigs. RESULTS: The PMWS started when pigs were 8 weeks old, with a prevalence of 30% in 8- to 10-week-old pigs. Eighty-three pigs died during the period between 3 and 12 weeks of age. Microscopic lesions consistent with PMWS were observed, and PCV2 nucleic acid was detected (50 of 68 pigs). Antibodies to PCV2 decreased from 3 to 7 weeks of age, increased at 12 weeks of age, and were maintained until 28 weeks of age. One sow had a positive result for PCR of serum. Nine, 37 and 8 pigs had PCV2 genome in serum obtained at 7, 12, and 28 weeks of age, respectively. CONCLUSIONS AND CLINICAL RELEVANCE: Infection with PCV2 coincided with severe clinical signs; however, infected 28-week-old pigs did not have evidence of disease. Immunity declined over time in young pigs. A long duration of PCV2 viremia was apparent in a high percentage of infected pigs, which may affect transmission and persistence of the virus in a herd.  相似文献