Results 111 to 120 of about 2,016 (155)
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The Bovine Practitioner, 2004
The objective of this study was to estimate the prevalence of M. avium subsp. paratuberculosis infection among beef and dairy cattle in Florida, USA. This was a retrospective seroprevalence study on serum samples from 32?011 cattle originating from 75 herds. Selection was limited to whole herds being tested for diagnostic purposes by owners considering
Keller, L. L. +3 more
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The objective of this study was to estimate the prevalence of M. avium subsp. paratuberculosis infection among beef and dairy cattle in Florida, USA. This was a retrospective seroprevalence study on serum samples from 32?011 cattle originating from 75 herds. Selection was limited to whole herds being tested for diagnostic purposes by owners considering
Keller, L. L. +3 more
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Australian Veterinary Journal, 1981
SUMMARY Johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of New South Wales. The sources of infection were not determined and no common source of all infections was identified. The disease was not diagnosed in cattle that were run on 4 of the farms.
J T, Seaman, I A, Gardner, C H, Dent
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SUMMARY Johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of New South Wales. The sources of infection were not determined and no common source of all infections was identified. The disease was not diagnosed in cattle that were run on 4 of the farms.
J T, Seaman, I A, Gardner, C H, Dent
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Australian Veterinary Journal, 1984
SUMMARY Johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of New South Wales. The sources of infection were not determined and no common source of all infections was identified. The disease was not diagnosed in cattle that were run on 4 of the farms.
J T, Seaman, D R, Thompson
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SUMMARY Johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of New South Wales. The sources of infection were not determined and no common source of all infections was identified. The disease was not diagnosed in cattle that were run on 4 of the farms.
J T, Seaman, D R, Thompson
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Journal of Comparative Pathology and Therapeutics, 1954
Summary The pathology of Johne's disease in the sheep as it occurs in Scotland is given. On histological appearances it has been divided into four groups. Group 1 is characterised by masses of epithelioid cells. The pigmented variety of M. Johnei is most commonly present in very large numbers.
J T, STAMP, J A, WATT
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Summary The pathology of Johne's disease in the sheep as it occurs in Scotland is given. On histological appearances it has been divided into four groups. Group 1 is characterised by masses of epithelioid cells. The pigmented variety of M. Johnei is most commonly present in very large numbers.
J T, STAMP, J A, WATT
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A simulation of Johne’s disease control
Preventive Veterinary Medicine, 2002A dynamic and stochastic simulation model (the "JohneSSim model") was developed to evaluate the economic and epidemiological effects of different strategies for control of paratuberculosis in dairy herds. Animals occupy one of the six defined infection states; the spread of Johne's disease is modeled with five infection routes.
Groenendaal, H. +5 more
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Veterinary Record, 2005
SIR, – It is with regret that the Veterinary Laboratories Agency (VLA) has taken the decision not to pursue a Marketing Authorisation for the live Johne’s disease vaccine (Living) PL 3326/4002 (product code PA0520) with the Veterinary Medicines Directorate (VMD).
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SIR, – It is with regret that the Veterinary Laboratories Agency (VLA) has taken the decision not to pursue a Marketing Authorisation for the live Johne’s disease vaccine (Living) PL 3326/4002 (product code PA0520) with the Veterinary Medicines Directorate (VMD).
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American Association of Bovine Practitioners Conference Proceedings, 2005
Johne's disease (paratuberculosis) is a chronic, granulomatous infection of the intestinal tract of ruminants caused by Mycobacterium avium subspecies paratuberculosis (MAP). There is no approved treatment, no known way to eliminate the infection once established, nor is there an effective vaccine for the disease. Johne's disease (JD) has emerged as an
Whitlock, R. H. +5 more
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Johne's disease (paratuberculosis) is a chronic, granulomatous infection of the intestinal tract of ruminants caused by Mycobacterium avium subspecies paratuberculosis (MAP). There is no approved treatment, no known way to eliminate the infection once established, nor is there an effective vaccine for the disease. Johne's disease (JD) has emerged as an
Whitlock, R. H. +5 more
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Herd prevalence of Johne's disease
Veterinary Record, 2006SIR, — Johne's disease has a financial impact on infected herds and a detrimental effect on the welfare of affected cattle. No reliable estimate of herd prevalence of Johne's disease in the uk exists and it is for this reason that we are carrying out a study of Johne's disease in dairy ...
Richard, Kemp +2 more
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The pathology of Johne's disease in sheep
Australian Veterinary Journal, 1990SUMMARY The clinical, gross and histopathological findings in 50 sheep affected with Johne's disease are described. Clinically 90% were emaciated and 20% showed severe diarrhoea. On necropsy there was thickening of the walls of the intestines, particularly of the ileum, caecum and less frequently the jejunum, but in 36% of sheep the changes were only ...
M J, Carrigan, J T, Seaman
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Johne's disease control programmes
Veterinary Record, 2018I write in response to the letter from Catriona Ritchie ( VR , 28 July 2018, vol 183, p 134) regarding the use of blood sampling to augment Johne’s disease control programmes in dairy herds. A significant diagnostic problem with mycobacterium avium subspecies paratuberculosis , and other mycobacterial infections, is that both detectable immunological ...
Pete, Orpin, Dick, Sibley
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