F. H. J. Jaartsveld

Learn More
Vaccination against paratuberculosis of all newborn animals has been performed since April 1984 in two dairy herds with a high incidence of clinical cases of paratuberculosis, using a vaccine containing heat-inactivated M. paratuberculosis in a water/mineral oil emulsion. Animals slaughtered between April 1984 and January 1991 were included in the study.(More)
Contagious Equine Metritis (CEM) was detected in the Netherlands for the first time in 1987. A total number of five mares (Dutch saddle-horse) were infected in three separate outbreaks. The origin of the infection could not be determined in any of the cases. As the isolates of the causal organism, Taylorella equigenitalis, showed auto-agglutination,(More)
Glucocorticoids were administered to 10 heifers suspected of subclinical infection with Mycobacterium paratuberculosis. Three animals remained untreated. M. paratuberculosis was isolated from the internal organs of 2 animals after this treatment but not from any of the control group. Delayed type hypersensitivity and lymphocyte reactivity towards Johnin and(More)
Cases of human infection caused by Listeria and resulting from the consumption of dairy produce contaminated by Listeria are referred to in the literature. A case of mastitis in cattle, caused by Listeria monocytogenes type 1/2a, is reported. The result of treatment of the infected quarters with penicillin was not satisfactory so far. Several cases of(More)
Enterotoxaemia caused by Clostridium perfringens was diagnosed in a goat affected with severe enteritis which was found to be present at autopsy. Lesions bearing a resemblance to tuberculosis, caused by a Rhodococcus equi infection, were observed in the liver and lungs. This bacterium is constantly isolated from pulmonary abscesses in foals affected with(More)
The following microbiological tests: the Bacillus subtilis BGA (Bundes-Gesundheitsamt) test and Sarcina lutea test as well as the test bacteria Bacillus stearothermophilus var. calidolactis and E. coli were used to examine whether drug residues were detectable in broiler chickens during and after treatment with various drugs. With the exception of the(More)
With the co-operation of the industry, information has been received for 1974, just as for the years 1971 to 1973, about the number of short-acting and long-acting injectors sold in the Netherlands. This reveals that the sales of short-acting injectors have in 1974 shown practically no change (-0.7 per cent). The use of long-acting preparations shows a(More)