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Communication Dans Un Congrès Année : 2017

Assessment of the footbaths contamination by dairy cattle manures under field conditions

Résumé

Among the strategies for the control of foot infectious diseases, footbaths represent a useful alternative to treat concomitantly an important numbers of animals against conditions associated to lameness in ruminants. However, the active compounds used in footbaths can be challenged against incrasing number of cow passages and therefore, to different volume losses and levels of manure contamination which could after their activity. The objective of this study was to explore different physico-chemical variables of footbaths under field conditions. The study was carried out in 6 dairy cattle farms from western France. The hygienic status of the farms was determined by the overall feet cleanliness score of the herd. A footbath filled with water was placed at the usual location of each farm. Footbath samples were taken after 0, 50, 100, 150 and 200 cow passages to analyze the evolution of the microbial loads and the OM concentration. The number and moment of cow defecations were recorded. During the sampling, the ambient and inside temperature, the pH and the approximate residual volume of the footbath were recorded. The results indicate that the microbial loads and the OM concentration increased mainly as the number of passages of animals rose, and to a lesser extent, with the number of defecations. This increase was independent of the hygienic status of the farms, indicating that the number of cow passages influenced the OM concentration in footbaths and not the dirtiness of the feet. On average 6% of cows defecated in footbaths. Only slight variations on the temperature and the pH measures across the different numbers of cow passages were recorded. However, the volume decreased drastically in the order of 40 to 50% after 200 cow passages. The OM concentration after 150 and 200 cow passages reaches the maximal concentrations in which the bactericidal efficacies of footbath products are tested (20 g/l), indicating the relevance of this renewal rates. Nevertheless, the renewal rates must be mainly adapted according to the footbath remaining volume, provided that the entire foot should be cover by the footbath solution
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Dates et versions

hal-01603291 , version 1 (02-10-2017)

Identifiants

  • HAL Id : hal-01603291 , version 1
  • PRODINRA : 406125

Citer

Juan Manuel Ariza Chacon, Nathalie Bareille, Kenny Oberle, Raphaël Guatteo. Assessment of the footbaths contamination by dairy cattle manures under field conditions. 68. Annual Meeting of the European Federation of Animal Science (EAAP), Aug 2017, Tallinn, Estonia. 514 p. ⟨hal-01603291⟩
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