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Microbiological and serological study of leptospirosis in horses at slaughter: first isolations 总被引:1,自引:0,他引:1
Rocha T Ellis WA Montgomery J Gilmore C Regalla J Brem S 《Research in veterinary science》2004,76(3):199-202
A bacteriological survey of kidneys from 145 abattoir horses was performed, which resulted in the isolation of two Leptospira strains. The isolates were serologically typed as belonging to serogroups Australis and Pomona, and REA identified them as L. interrogans serovar Bratislava and L. kirschneri serovar Tsaratsovo, respectively. These are the first Leptospira isolates obtained from horses in Portugal and the Bratislava strain is the first serogroup Australis strain to be isolated in this country. The 145 horses were also serologically tested for leptospiral antibodies, and 37% had MAT titres #10878;1:10. 相似文献
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Prevalence of Bovine tuberculosis in Ethiopian slaughter cattle based on post-mortem examination 总被引:4,自引:4,他引:0
B. Demelash F. Inangolet J. Oloya B. Asseged M. Badaso A. Yilkal E. Skjerve 《Tropical animal health and production》2009,41(5):755-765
A study aimed at describing the magnitude and distribution of gross lesions compatible with bovine tuberculosis (BTB) in Ethiiopian
slaughter cattle in five abattoirs (four municipal and one export) located in various cattle husbandry systems in Ethiopia
was carried out from July 2006 to January 2007 using detailed meat inspection procedure. Five representative abattoirs (four
municipal and one export) located in distinct livestock management systems were selected. A total of 3322 cattle; 2876 (86.6%)
male, 446 (13.4%) female; 3094 (93.1%) indigenous zebu, 140 (4.2%) crossbred and 88 (2.7%) pure exotic cattle were included
in the study. A nine-year meat inspection record was also analyzed to elucidate the trend of BTB in the local cattle population.Of
the carcasses inspected, 337 (10.2%, 95%CI= [9.2–11.2]) had lesions suggestive of tuberculosis, 69 (20.5%) generalized and
268 (79.5%) localized.TB prevalence showed a marked variation between categories of age, breed, class of animals, abattoir,
geographic origin and husbandry system. It was higher in old and young animals than middle age group; in exotic than local
breed; in calves than other classes of animals. The highest and lowest prevalence of TB was recorded in Adama (24.7%, 95%CI=
[21.1–28.7]) and Yabello abattoirs (4.2%, 95%CI= [2.6–6.6]), respectively. Cattle whose origin was from Addis Ababa and its
surrounding areas had higher prevalence of TB infection (23.9%, 95%CI= [17.6–31.5]).Cattle maintained in dairy farms had high
degree of exposure (23.9%, 95%CI= [16.7–32.9]) to the infection than those maintained in other types of management system.
Analysis of meat inspection records also revealed an increasing incidence of TB over the years. Our study demonstrated a high
prevalence of tuberculosis in Ethiopian slaughter cattle and this could infer to similar scenario in a reference cattle population
in the country. In view of Ethiopia’s increasing involvement in livestock export trade, the reported high prevalence of tuberculosis
could be a major obstacle, particularly at this moment when sanitary requirements from importing countries are so much strict.
Furthermore, the growing concern over increasing incidence of tuberculosis/HIV/AIDS co-infection, the high incidence of extra-
pulmonary tuberculosis and a high risk of acquiring zoonotic tuberculosis among the majority of the population emphasize the
need for paying the necessary attention towards the control of bovine tuberculosis. 相似文献
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R.D. Jolly B.V.Sc. Ph.D. 《New Zealand veterinary journal》2013,61(3):47-50
Extract The following figures of the incidence of Leptospira pomona infection on farms in Northland are for the 1952 season up to the end of November, and were provided by all veterinary surgeons in Northland in -response to a questionnaire. 相似文献
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R.T. Hodges Ph.D. B.V.Sc. M.R.C.V.S. 《New Zealand veterinary journal》2013,61(12):239-242
For laboratory diagnosis of respiratory disease it is of overwhelming importance that the specimens taken are adequate, taken from the correct site and at the correct time. The lower regions of the respiratory tract are particularly difficult to sample but are more likely to yield the causative agent of a pneumonia. Infections involving the upper respiratory tract are much easier to sample and appropriate aspiration apparatus can be used. Consideration must be given to the timing of sample collection in relation to the life cycle of the causative micro-organism. Sampling of several animals is recommended. Diagnosis may be achieved by isolation in culture of the causative agent or the demonstration of the agent by indirect methods such as electron microscopy and ELISA. Clinical biochemical tests may reflect systemic metabolic changes induced by microbial infections and give an indication of the severity of the disease and its prognosis. Pulmonary function tests have limited application in animals and are only likely to be used under experimental conditions and in horses and small animals. 相似文献
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Bovine leptospirosis: experimental serovar hardjo infection 总被引:1,自引:0,他引:1
Almost the full range of clinical signs observed in pregnant cattle naturally infected with Leptospira interrogans serovar hardjo was observed in this experimental study in which 22 heifers were infected by intraplacentome inoculation with serovar hardjo strains. These features included abortion, mummification, stillbirth, premature and term birth of weak calves and full-term birth of live apparently healthy calves. Leptospires were demonstrated in all but three calves by culture and or immunofluorescence. 相似文献
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Chemotherapy of renal leptospirosis in cattle 总被引:2,自引:0,他引:2
O H Stalheim 《American journal of veterinary research》1969,30(8):1317-1323
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Cranley J 《The Veterinary record》2011,168(16):437-438
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H E Metcalf J E Pearson A L Klingsporn 《American journal of veterinary research》1981,42(6):1057-1061
Serologic tests for bluetongue virus (BTV) were done on 19,758 blood serum samples systematically collected at brucellosis laboratories throughout the United States from Nov 28, 1977 to Feb 20, 1978. Prevalence of BTV antibody varied from 0 to 79% of the samples collected in various states, with a national prevalence of 18.2%. The prevalence was generally low in the northern states and high in the southwestern states. The highest prevalence rates were found in Puerto Rico and the Virgin Islands. 相似文献
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