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At least 433 records · Page 24Linked to original sources
PubMed2006

Maasai perception of the impact and incidence of malignant catarrhal fever (MCF) in southern Kenya.

We investigated the perceived impact of malignant catarrhal fever (MCF) to pastoralists in Isinya Division, a wildlife dispersal area of Nairobi National Park, and used a range of participatory epidemiology methodologies. We compared the relative importance, incidence and impact of MCF compared to other locally defined important diseases with a total of 158 respondents in 11 group meetings and 21 household meetings in July 2004. Direct losses due to disease were investigated through lowered prices as a result of the emergency sale of disease-infected animals. Overall, Maasai in Isinya Division perceived east coast fever (ECF) to be the most important cattle disease and to have the highest incidence. Anthrax was considered to have the largest impact. In areas within or adjacent to the wildebeest calving zone, MCF was perceived to be the most important cattle disease and also to have the largest impact. Outside the calving zone, MCF was considered the fourth-most important disease with the fourth largest impact, and these were areas where wildebeest were less common. MCF was also the fourth-most common disease, and across the Division incidence was estimated at 5% in calves and 10% in adults. However, MCF incidence varied greatly throughout the study area, from 3% to 12%, and the highest incidence risks were found in areas where wildebeest came to calve. The percent drop in sale price per animal infected with MCF was estimated at 50% for MCF for the year 2003-2004. Forced avoidance movements away from wildebeest calves were reported to decrease livestock production due to loss of access to prime grazing sites. As suggested by pastoralists in this study, the development of compensation schemes or incentives from wildlife would reduce the conflict between livestock keeping and wildlife conservation.

Animals↗
PubMed2002

Bovine spongiform encephalopathy update.

Bovine spongiform encephalopathy (BSE) is a zoonosis being the origin of variant Creutzfeldt-Jakob disease and an important cattle disease in its own right. Countries have been slow to learn the importance of protecting, not only their cattle populations, but also their human populations. Since 2000, several additional European countries have reported BSE in native-born stock and this has led to a concern about the BSE status of countries that have imported cattle and catlle products from infected countries. Extensive feed and offal bans and application of newly-developed, "Rapid" tests for prion protein in central nervous tissue of targeted, high-risk animals and slaughter cattle over 30 months old now provides the tools whereby the public are fully protected and BSE can be eradicated.

Animals↗
PubMed1995

Liver disease in cattle induced by consumption of moldy hay.

Normally innocuous forages are sporadically associated with hepatogenous photosensitization outbreaks at certain times of the year or when grown and harvested during unusual environmental conditions, such as periods of excessive rainfall. Allegations of livestock illness following consumption of such moldy hays are associated with clinical syndromes uncharacteristic of known forage-related diseases, suggesting that unidentified toxin(s) may be responsible. This study was instigated by field observations of hepatogenous photosensitization in cattle fed alfalfa-grass forage. To document the toxic nature of the hay, large bales of hay (450 kg) were fed, ad libitum, to 3 groups of 2 calves each. Elevated serum liver enzymes provided evidence of hepatobiliary disease. Gamma glutamyl transferase activities in serums of the calves sustained at least a 10-fold increase above baseline during the feeding trials. Histologic examination of liver biopsies and postmortem sections revealed mild periportal fibrosis and biliary hyperplasia. Culture material from 12 fungal isolates from the hay failed to induce liver disease in calves.

Animal Feed↗
PubMed2001

Comparison of two enzyme-linked immunosorbent assays for serologic diagnosis of paratuberculosis (Johne's disease) in cattle using different subspecies strains of Mycobacterium avium.

Serologic diagnosis of bovine paratuberculosis (Johne's disease) with currently available tests may give false-positive results due to cross-reactions with avian and bovine tuberculosis viruses and other infectious agents. Indirect enzyme-linked immunosorbent assays (ELISA) for detection of antibodies against paratuberculosis based on antigens from Mycobacterium avium subsp. avium (A-ELISA) and M. avium subsp. paratuberculosis (P-ELISA) were compared. Despite an expected higher specificity for M. a. paratuberculosis in the P-ELISA, the 2 antigens were equally suitable for demonstration of antibody to M. a. paratuberculosis in cattle. Receiver operating characteristic (ROC) curves was used to demonstrate the possible antigenic relationship. The area under the curve (AUC) was calculated for each of the 2 ROC curves. The AUC for the P-ELISA ROC curve was 0.9197, and the AUC for the A-ELISA ROC curve was 0.9149, demonstrating a negligible difference in efficiency of the 2 tests (z = 0.182).

Animals↗
PubMed1996

Surgical management of digit disorders in cattle.

Digital diseases in cattle are common. Cattle affected by digital disorders do not always respond to medical therapy and often need surgery. A thorough examination of the digits and radiographic evaluation help the clinician to choose the appropriate treatment and surgical approach. Age, sex, weight, type of production, and environment of the cattle also should be considered in choice of therapy.

Amputation, Surgical↗
PubMed2005

[Bovine spongiform encephalopathy].

The identification of variant Creutzfeldt-Jakob disease (vCJD) in human strongly reinforced the perception of risks associated with the infectious agent involved in Bovine Spongiform Encephalopathy (BSE). The development of rapid tests for the diagnosis of BSE by the detection of the abnormal prion protein allowed a huge increase in surveillance of the cattle disease. This first revealed a higher prevalence of the infection than previously believed. However, food safety measures, mainly based on the ban of the use of meat and bone meal in ruminants and the elimination of specified risk materials from the food chain, already allowed significant progress in the control of the cattle disease, especially in the United Kingdom. Nevertheless, the diagnosis can still not be obtained in the live animal, while the disease only appears following a several years incubation period. Another major issue is the identification of the BSE agent when it has been transmitted to another species. This question not only arises in veterinary medicine, with the major question of a possible infection of small ruminants by the BSE agent, but also in human in which the existence of other forms of the disease linked to the BSE agent but possibly differing from Creutzfeldt-Jakob disease cannot be excluded.

Animal Feed↗