After in the Netherlands, also in Belgium and Germany bluetongue disease has been reported in North Rhine Westphalia. In Aachen, were the `Weltreiterspiele 2006` currently take place, 15 bovine cases have been reported.
Two outbreaks of bluetongue have been reported in North Rhine Wesphalia: in ovine in Kreis Aachen (2 cases) and in bovine in Stadt Aachen (15 cases).
Description of affected population: Kreis Aachen
One holding with 17 breeding sheep aged over one year.
Stadt Aachen One holding with 199 breeding cattle.
One holding with 64 breeding cattle.
One holding with 106 breeding cattle.
One holding with 264 breeding cattle.
One holding with 68 breeding cattle.
Laboratory where diagnostic tests were performed: Friedrich-Loeffler Institute, Insel Riems (OIE Reference Laboratory) using cELISA.
Source of outbreaks or origin of infection: unknown or inconclusive.
Control measures undertaken:
- movement control inside the country
Subclinical ketosis in dairy cows: prevalence and risk factors
Subclinical ketosis is commonly seen especially in dairy cows and grazing systems aand can become a serious and sometimes life threatening metabolic problem. The purpose of this study was to estimate the prevalence of Subclinical ketosis (SCK) between 4 and 19 days in milk (DIM) in a grazing production system and investigate the importance of potential risk factors for SCK.