Improvement of goat TSE discriminative diagnosis and susceptibility based assessment of BSE infectivity in goat milk and meat

Bossers, A.; Langeveld, J.P.M.


In light of the known ability of the BSE agent to cross the animal/human species barrier, the evidence establishing the presence of BSE in goat is especially alarming, as it represents a potential risk of food-born contamination to human consumers of goat milk and meat products. The main objective has been to determine the tissue distribution of BSE after oral exposure of goats while simultaneously generating in dispensable data on genetic susceptibility in the most commonly used production breeds. Our approach integrates the predicted influence of PrP gene polymorphisms on scrapie and BSE susceptibility so that it could potentially be used for the control of field TSE outbreaks in goats. This proposal aims: - at providing data to allow evaluation of human risk associated with BSE passaged in goat; - at providing pathogenesis data and biologic al material from first and second passage BSE in goats; - at evaluating the possibility of BSE self-maintenance in goats by maternal/horizontal transmission; - at validating and improving our ability to detect and discriminate caprine BSE from goat scrapie.