Failure of passive immunity transfer is not a risk factor for omphalitis in beef calves

Perrot Florent, Joulié Aurélien, Herry Alan, Masset Nicolas, Lemaire Guillaume, Barral Alicia, Raboisson Didier, Roy Christophe, Herman Nicolas. 2023. Failure of passive immunity transfer is not a risk factor for omphalitis in beef calves. Veterinary Sciences, 10 (9):544, 9 p.

https://doi.org/10.3390/vetsci10090544

Article de revue ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total

Prévisualisation

Version publiée - Anglais
Sous licence

.
610881.pdf
Télécharger (427kB) | Prévisualisation

Résumé : Omphalitis is the third most frequent disease in newborn calves after neonatal diarrhea and bovine respiratory disease (BRD), but limited data on the prevalence and risk factors are available in the literature. Failure of passive immunity transfer (FPIT) is recognized as a major risk factor for diseases and mortality in calves. However, the association between omphalitis and FPIT remains poorly described. To assess this association, 964 suckler beef calves from 22 farms were included in a longitudinal cohort study for 5 months. Each calf was examined twice (mean ages: 4.4 and 11.1 days old) to diagnose omphalitis through clinical examination and ultrasonographic evaluation (USE) if necessary. Measurements of the total solids percentage (TS-%Brix) and total protein (TP) were performed on the serum during the first visit to evaluate the calves' passive immunity status. FPIT (fair and poor) was defined as serum %Brix < 8.1 or TP < 5.1 g/dL; among calves with omphalitis, 14% had FPIT and among calves without omphalitis 12% had FPIT. The omphalitis prevalence was 32.3% in calves without any other disease (overall prevalence of 30.9%). No statistical association between the prevalence of omphalitis and FPIT was observed. Further research is needed to identify the risk factors and promote the prevention measures for omphalitis in cow–calf systems, such as calving difficulty, hygiene of housing, and navel disinfection.

Mots-clés Agrovoc : facteur de risque, morbidité, immunité passive, transfert du risque, viande bovine, maladie respiratoire

Mots-clés géographiques Agrovoc : France

Mots-clés libres : Calves, Suckler beef, Cow-calf system, Omphalitis, Transfer of passive immunity

Auteurs et affiliations