PMID: 2485539Jan 1, 1989Paper

Dermatophilus congolensis bovine dermatophilosis in the French West Indies. III. A comparison between infected and non-infected cattle

Revue d'élevage et de médecine vétérinaire des pays tropicaux
G MatheronC Sheikboudou

Abstract

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 geographical area. Similarly, differences are little or nil as regards animal exposure toward aggressive factors such as sun, soil moisture, thorns, etc. On the other hand, the presence of Amblyomma variegatum is a determining factor considering the prevailing situation in La Martinique, where all breeds of cattle are sensitive to the disease. In this case, 63 per cent of the tick infested cattle develops dermatophilosis versus 2.5 per cent for the still uninfected animals. Conversely, in La Guadeloupe were Creole zebus are highly resistant (as a consequence of their natural selection), only 27 per cent of the infected stock suffers from this illness. In these two islands, regular dipping measures have proved to be beneficial in that it reduces t...Continue Reading

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