| a neuropathological survey of brains submitted under the bovine spongiform encephalopathy orders in scotland. | bovine spongiform encephalopathy was not confirmed histologically in 225 of 829 bovine brains submitted for diagnosis. several previously described disorders of the central nervous system were observed in these brains as well as disorders not previously recognised in britain, including bilateral vacuolation of the substantia nigra, hippocampal sclerosis with brainstem neuronal chromatolysis and necrosis, focal symmetrical encephalomalacia and meningio-angiomatosis. severe cerebellar dysplasia co ... | 1992 | 1441143 |
| disease in a dairy herd associated with the introduction and spread of bovine virus diarrhoea virus. | in january 1982 an outbreak of diarrhoea among adult dairy cows in a closed herd of approximately 200 milking animals was shown to be caused by the introduction of bovine virus diarrhoea virus (bvdv). affected animals showed a significant reduction in milk yield. one animal died and four were culled. eight cows aborted and one weak calf was born. of 121 calves born that year, 26 died, mostly from pneumonia, but five aged from three weeks to five months had enteric lesions of mucosal disease. sub ... | 1985 | 3000058 |
| health status of bulls used for natural breeding on farms in south west scotland. | one hundred and nine breeding bulls were examined during the period november 1992 to june 1993 on farms in south west scotland for evidence of infectious diseases associated with breeding. preputial washings were collected to screen for campylobacter fetus venerialis, together with serial blood samples to assess their seroprevalence to bovine virus diarrhoea virus (bvdv), bovine herpes virus-1 (bhv-1), leptospira hardjo and bovine herpes virus-4 (bhv-4). the possible impact of natural mating on ... | 1999 | 10416365 |
| eradication programme for bovine viral diarrhoea virus in orkney 2001 to 2008. | the strategies used and the results obtained in orkney's bovine viral diarrhoea virus (bvdv) eradication programme over eight years (2001 to 2008) are presented and discussed. the venture was undertaken by local veterinary practices and the orkney livestock association (ola) with the financial support of the orkney islands council. participation is voluntary; the programme comprises screening of youngstock, a whole-herd test if required, elimination of persistently infected animals and strict bi ... | 2010 | 21257418 |
| prevalence of pasteurella multocida and other respiratory pathogens in the nasal tract of scottish calves. | the prevalence of pasteurella multocida, a cause of bovine respiratory disease, was studied in a random sample of beef suckler and dairy farms throughout scotland, by means of a cross-sectional survey. a total of 637 calves from 68 farms from six geographical regions of scotland were sampled between february and june 2008. deep nasal swabs were taken, and samples that were culture-positive for p multocida were confirmed by pcr. prevalence of p multocida was 17 per cent (105 of 616 calves); 47 pe ... | 2010 | 21257416 |
| the prevalence of bovine viral diarrhoea virus infection in beef suckler herds in scotland. | bovine viral diarrhoea (bvd) is an endemic disease of cattle that causes substantial losses to both beef and dairy production worldwide. the goal of this study was to estimate the prevalence of active bvd virus (bvdv) infection in beef suckler herds in scotland. information was collected from 301 herds using a stratified random sampling design based on agricultural census data. herds were classified as with and without active infection based on the within-herd bvdv seroprevalence in young stock ... | 2010 | 19747863 |
| optimal risk management versus willingness to pay for bvdv control options. | previous work has shown that the least-cost bvd-control option for cow-calf herds in scotland was not necessarily the risk-minimising option. thus, assessing bvdv prevention measures must account for risk reduction as well as decision-makers' attitude towards risks. we therefore describe a method to do this using a hypothetical example. data for this analysis were generated using a simulation model of bvdv transmission in a typical scottish cow-calf herd over a 10-year period. herd infection/re- ... | 2005 | 16169618 |