Review of diagnostic laboratory submissions of adult cattle 'found dead' in England and Wales in 2004

2008 ◽  
Vol 163 (18) ◽  
pp. 531-535 ◽  
Author(s):  
E. N. Watson ◽  
G. P. David ◽  
A. J. C. Cook
Keyword(s):  
Diagnostic Laboratory ◽  
Adult Cattle ◽  
England And Wales

scholarly journals Anthrax in cattle in southern Brazil: 1978-2006

2006 ◽  
Vol 26 (4) ◽  
pp. 243-248 ◽  
Author(s):  
Ana Lucia Schild ◽  
Elisa Simone V. Sallis ◽  
Mauro P. Soares ◽  
Silvia R.L. Ladeira ◽  
Renata Schramm ◽  
...  
Keyword(s):  
Clinical Manifestation ◽  
Southern Brazil ◽  
Diagnostic Laboratory ◽  
Risk Population ◽  
Adult Cattle ◽  
Source Of Infection ◽  
Disease Occurrence ◽  
Acute Form ◽  
Animal Grazing

Ten outbreaks of anthrax occurred in cattle from 1978 to 2006 in southern Brazil, in 5 municipalities on the border with Uruguay, a country where the disease is frequent. The 10 outbreaks represented 0.2% of all bovine specimens received during the period by the Regional Diagnostic Laboratory of the Federal University of Pelotas, causing 267 deaths in a risk population of 6,605 head. The disease affected young and adult cattle mainly during summer. Only one farmer reported that sheep and horses were also affected. Clinically the peracute form was more frequent, but in some outbreaks the acute form with a clinical manifestation period of 6-48 hours was also observed. The source of infection was not established; but the reduced rainfall, associated with low, flat, flooded lands used for agriculture followed by animal grazing after harvest was probably related to the disease occurrence. Annual vaccination is an efficient way to prevent the disease.

scholarly journals The in vitro drug resistance of Salmonella dublin isolated from cattle

1977 ◽  
Vol 79 (2) ◽  
pp. 275-278
Author(s):  
M. Hinton ◽  
B. M. Williams
Keyword(s):  
Drug Resistance ◽  
Diagnostic Laboratory ◽  
Antibacterial Drugs ◽  
Adult Cattle ◽  
Salmonella Dublin ◽  
Laboratory Conditions

SUMMARYThe resistance of Salmonella dublin to eight antibacterial drugs was assessed wider diagnostic laboratory conditions. Two techniques were used consecutively and the differences in the results are described. Strains of S. dublin isolated from either calves, adult cattle or abortion material showed no differences in resistance for either of the techniques, though differences between the two techniques were found.

scholarly journals Bovine cardiac mesothelial hyperplasia: a common incidental finding in adult cattle

2019 ◽  
Vol 32 (1) ◽  
pp. 65-69
Author(s):  
Dayna A. Goldsmith ◽  
John M. Adaska
Keyword(s):  
Virus Infection ◽  
Bovine Leukemia Virus ◽  
Incidental Finding ◽  
Leukemia Virus ◽  
Bovine Leukemia Virus Infection ◽  
Diagnostic Laboratory ◽  
Adult Cattle ◽  
Common Distribution ◽  
Epicardial Surface ◽  
Great Vessels

Cardiac mesothelial hyperplasia forming pale plaque lesions on the epicardial surface is a common incidental finding in the hearts of aged humans. A similar phenomenon with a more papillary appearance has also been reported as an incidental finding in dogs and mice. These lesions are believed to occur in response to friction between the epicardium and overlying pericardium. We investigated this lesion in adult cattle, a phenomenon that has been associated with bovine leukemia virus infection and epicardial lymphoma. We examined 73 hearts from adult cattle, predominantly of dairy breeds: 53 from a rendering facility and 20 from a state diagnostic laboratory. Cardiac mesothelial hyperplasia was much more prevalent in cattle than in other reported species (97% of examined hearts). The most common distribution was overlying the great vessels in a dark red papillary pattern. Cardiac mesothelial hyperplasia was also variably observed on all 4 cardiac chambers and the pericardium. Occasionally these lesions took on a smooth plaque-like appearance resembling those observed in humans. The lesions varied from 0.25 cm2 to covering 90% of the epicardial surface. No association was observed between cardiac mesothelial hyperplasia and bovine leukemia virus infection or cardiac lymphoma. Cardiac mesothelial hyperplasia was a common incidental finding in bovine hearts that must be distinguished from neoplasia and acute or chronic inflammation.

Ultrastructural Studies of Bovine Respiratory Disease Complex

1975 ◽  
Vol 33 ◽  
pp. 428-429
Author(s):  
James C.S. Kim
Keyword(s):  
Michigan State University ◽  
State University ◽  
Diagnostic Laboratory ◽  
Ultrastructural Studies ◽  
Bovine Respiratory Diseases ◽  
Etiologic Agents ◽  
Diagnostic Difficulties ◽  
The Subject ◽  
Capillary Walls ◽  
Alveolar Capillary

Bovine respiratory diseases cause serious economic loses and present diagnostic difficulties due to the variety of etiologic agents, predisposing conditions, parasites, viruses, bacteria and mycoplasma, and may be multiple or complicated. Several agents which have been isolated from the abnormal lungs are still the subject of controversy and uncertainty. These include adenoviruses, rhinoviruses, syncytial viruses, herpesviruses, picornaviruses, mycoplasma, chlamydiae and Haemophilus somnus.Previously, we have studied four typical cases of bovine pneumonia obtained from the Michigan State University Veterinary Diagnostic Laboratory to elucidate this complex syndrome by electron microscopy. More recently, additional cases examined reveal electron opaque immune deposits which were demonstrable on the alveolar capillary walls, laminae of alveolar capillaries, subenthothelium and interstitium in four out of 10 cases. In other tissue collected, unlike other previous studies, bacterial organisms have been found in association with acute suppurative bronchopneumonia.

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