Effects of the Bluetongue Virus on Cattle

872 Words2 Pages

Normally, cows in Northern Europe in places such as Denmark live normal lives simply grazing on grass, and existing. However, there have been recent changes that have disrupted this normal activity. Generally the bluetongue virus (spread by Culicoides imicola, a biting midge) has been confined to Southern Europe and other places around the Mediterranean. But with the increase in temperature throughout the area, the midge has been allowed to migrate northward. This new pest is a nuisance and causes lots of difficulties to farmers in the area. When a cow contracts this disease, they usually also receive oral ulcers, salivation, stiffness, fever and eventually the inevitable- death (Merck Veterinary Manual NP). Because of the increase in temperature, midges have spread around the globe infecting livestock and creating terrible trouble for many farmers.

The biting midge (Culicoides imicola), which is responsible for this disease’s transmission, is usually contained within Mediterranean Europe; where the conditions have been exactly what the midge demands to survive (Society for General Microbiology NP). However, with an increase in average temperature of six degrees, the midge has been allowed to travel northward threatening the cattle throughout the area and even as far as England (Society for General Microbiology NP). The spread of the midge’s territory has led to an increased number of their population, along with the amount of infected cattle.

From a financial and marketing standpoint, the effects have been catastrophic. In some areas, milk production has decreased by an average of two liters daily and calving index (efficiency at which new calves are produced) went down by an average of twenty days (Davies NP). Th...

... middle of paper ...

...s moves on, and unless something dramatic happens, there will be many more agonizing costs that will be needed to pay.

Works Cited
“Bluetongue: Introduction.” The Merck Veterinary Manual. 2008. Merial. Online. 25

January 2010. .

“Bluetongue Virus.” 10 December 2009. 25 January 2010. .

Davies, Jack. Plan BTV vaccination ready for summer. 13 February 2009. 25 January

2010. .

Hoar, David, et. al. Probability of introduction of exotic strains of bluetongue virus into

the US and into California through importation of infected cattle. Davis:

Department of Medicine and Epidemiology, School of Veterinary Medicine,

2004.

Mertens, Peter. Climate change fears for deadly virus outbreaks in livestock. 31 March

2009. 25 January 2010. .

Open Document