Anaplasmosis and Bluetongue
Anaplasmosis and bluetongue are diseases that can affect ruminant animals and are spread by specific biting insects. While anaplasmosis can occur as a clinical disease in cattle and bison, the bluetongue virus causes disease in sheep, goats and wild ruminants. It may also be carried for a limited period by cattle and bison without causing disease.
While anaplasmosis is not present in Canadian livestock, bluetongue has occurred from time to time in British Columbia's Okanagan Valley.
There is a potential risk to animals in Canada if infected cattle are imported in an uncontrolled manner, especially during the summer months when biting insects are active.
With the use of science-based risk assessments, Canada's import requirement for US feeder cattle have been modified a number of times during the last decade.
In 2004, Canada's import policy was modified to allow the entry of feeder cattle from up to 39 US states into approved feedlots without prior testing for these diseases. Qualifying states must be free of bovine brucellosis and tuberculosis, and must have a low level of bluetongue. Measures have been put into place at importing feedlots to protect Canadian cattle from possible exposure to disease. Animals entering Canada under this import program are commonly referred to as "restricted feeders".
On March 29, 2005, the Canadian Food Inspection Agency expanded access under its import regulations to allow for the importation of a range of US animals and their products and by-products that were previously prohibited after a case of BSE was detected in Washington State in December 2003.
As a result, year-round access for US feeder cattle into Canadian feedlots is now allowed, though protecting Canadian livestock and wildlife from bluetongue, anaplasmosis and other animal diseases is still of prime concern.
Because of the continued closure of the US border to slaughter cattle imports, Canadian feedlot operators to date have not found it economically viable to import US feeder cattle. Only one permit has been issued to a US exporter as of June 2005, and no importation has occurred. www.agr.gc.ca/usadvocacy