| economic and production consequences of liver fluke disease in double-muscled fattening cattle. | the frequency of liver fluke disease in fattening units was determined by the analysis of random faeces samples issued from 1,513 belgian white blue bulls aged from 5 to 7 months and weighing from 200 to 300 kg. 12.5% of the investigated bulls were positive for liver fluke disease. these bulls were spread over 56.5% of the investigated fattening units. furthermore the infestation rate varied from 0 to 33.3% inside the fattening units. in order to assess the economic consequences of bovine fascio ... | 1991 | 1858458 |