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Nonruminant Nutrition: Poultry Nutrition - Phosphorus and Phytase
| Content Provider | Semantic Scholar |
|---|---|
| Author | Woyengo, Tofuko A. Owusu-Asiedu, Augustine Simmins, P. H. Guenter Nyachoti, Charler Martin Sorbara, José Otávio Berti Lecznieski, J. L. Arakaki, Christi Piracés, Francisco Sarwar, Mostofa Ahmad, Gholamali |
| Copyright Year | 2007 |
| Abstract | In the early twentieth century there were large numbers of tuberculous cattle in many countries. An association was made between the number of Mycobacterium bovis infected humans and the prevalence of tuberculosis in cattle. Mandatory pasteurization of milk and advances in public health caused the prevalence of human tuberculosis due to M. bovis to decline dramatically in developed countries. However, in some countries eradication has been prevented by several factors not least of which is the presence of a wildlife reservoir of M. bovis. In Great Britain evidence suggests that M. bovis is endemic among badgers (Meles meles), and that tuberculous badgers are the source of infection for cattle. In New Zealand, brushtail possums (Trichosurus vulpecula), rst taken to New Zealand from Australia in the midnineteenth century now occupy over 90% of New Zealand’s land mass and serve as a source of M. bovis for domestic livestock. In Michigan, USA free-ranging white-tailed deer (Odocoileus virginianus) represent the rst known reservoir of M. bovis in free-living wildlife in the United States. Deer to cattle transmission of M. bovis has been documented. Wildlife reservoirs of M. bovis represent a serious challenge to the eradication of M. bovis. The presence of wildlife reservoirs is the direct result of spill-over of M. bovis from domestic livestock and efforts to eradicate M. bovis from domestic livestock are impeded by spill-back from wildlife reservoirs. The test and slaughter policies of tuberculosis control, effectively used with domestic livestock, are insufcient in areas where wildlife reservoirs exist. Complete removal of wildlife is impractical, and often impossible. It will not be possible to eradicate M. bovis from livestock until transmission between wildlife and domestic animals is halted. Such an endeavor will require a collaborative effort between agricultural, wildlife, environmental and political interests. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.adsa.org/Portals/0/SiteContent/Docs/Meetings/PastMeetings/Annual/2007/0672.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
