| selection assisted by a bola-dr/dq haplotype against susceptibility to bovine dermatophilosis. | bovine dermatophilosis is a severe skin infection of tropical ruminants inducing a severe loss in productivity and a 15% mortality rate. this disease is caused by the actinomycete bacterium dermatophilus congolensis associated with the tick amblyomma variegatum. currently there are no prospects for a vaccine, and acaricide or antibiotic control is hampered by the development of chemoresistance. animal breeders have observed that dermatophilosis susceptibility seems to be determined genetically, ... | 2003 | 12927091 |
| an amino acid sequence coded by the exon 2 of the bola drb3 gene associated with a bola class i specificity constitutes a likely genetic marker of resistance to dermatophilosis in brahman zebu cattle of martinique (fwi). | one hundred and twenty-seven brahman cattle from several locations in martinique (fwi), reared under different environmental conditions, were followed over three years and checked for clinical signs of dermatophilosis. to confirm that these animals had been in contact with the pathogen dermatophilus congolensis, their sera were tested by elisa. on the basis of this epidemiological study, 12 animals were classified as resistant (seropositive without clinical signs), belonging to herds in which th ... | 1996 | 8784500 |
| epidemiological studies on dermatophilosis in the caribbean. | dermatophilosis is one of the most important diseases of domestic ruminants in the caribbean islands where the clinical disease has been shown to be associated with the presence of the tick amblyomma variegatum. seroepidemiological studies were conducted to clarify the epidemiology of the disease in the region with a particular attention paid to the role of a. variegatum. a bank of 1300 cattle sera from the lesser antilles was screened by elisa for the presence of antibodies to dermatophilus con ... | 1993 | 8161379 |
| [dermatophilus congolensis bovine dermatophilosis in the french west indies. iii. a comparison between infected and non-infected cattle]. | the determination of the distinctive features between infected and uninfected cattle by dermatophilus has been performed among 93 bovine stock in la martinique, and 120 in la guadeloupe and saint-martin islands. nearly half of the herds had been or were infected. morbidity rates reach 33 per cent in la martinique and 29 per cent in la guadeloupe with a mortality ratio of 15 per cent and 5 per cent respectively. no frequency difference could be observed with respect to the season or the geographi ... | 1989 | 2485539 |