RT Journal Article
T1 Evaluation of antimicrobial and non-steroidal antiinflammatory treatments for BRD on health and welfare in fattening bulls: a cross-sectional study
A1 Masebo, Naod Thomas
A1 Hernández Bermúdez, Joaquín
A1 Jacinto, Joana G. P.
K1 Bovine respiratory disease
K1 Beef
K1 Cattle
K1 Mycoplasma bovis
K1 NSAID
K1 Tulathromycin
AB Our study aimed to evaluate the effect of different treatments for BRD on health and welfarein fattening bulls. A total of 264 bulls were enrolled. Welfare was assessed on day 2 (T0) andday 15 (T1) after arrival. A decrease in the welfare level was observed from T0 to T1. All bullswere inspected clinically at T0 and T1 revealing an increase of skin lesions and lameness in T1.In both periods, a high incidence of respiratory disease was observed. A prevalence of 79.55%and 95.45% of Mycoplasma bovis using RT-PCR and culture at T0 and T1 respectively wasobserved. Blood samples were collected for haematology at T0 and T1. At T0, 36 animals wereindividually treated for BRD with an antimicrobial (IT), 54 received a metaphylactic treatmentwith tulathromycin (M), 150 received a metaphylactic treatment with tulathromycin plus asecond antimicrobial (M+IT) whereas 24 were considered healthy and therefore not treated(NT). Additionally, 128 were treated with a non-steroid anti-inflammatory (NSAID). Neutrophilsof M+IT were significantly higher than groups NT and M and the lymphocytes of M+IT weresignificantly lower than that of IT. White blood cells, neutrophils and N/L ratio of animalstreated with an NSAID was significantly higher than that not treated. Lung inspection of 172bulls at the abattoir indicated that 92.43% presented at least one lung lesion. A statisticallysignificant effect of the NSAID treatment on the lung lesions was observed. Our findingsindicate that BRD was a major welfare and health concern and evidence the difficulties ofantimicrobial treatment of M. bovis.
PB Taylor & Francis
SN 0165-2176
YR 2024
FD 2024
LK http://hdl.handle.net/10347/33823
UL http://hdl.handle.net/10347/33823
LA eng
NO Masebo, N.T., Marliani, G., Del Re, F.S., Abram, L., Cavallini, D., Di Pietro, M., Beltrame, A., Schiavon, E., Bolcato, M., Hernández Bermúdez, J., Gentile, A. & Jacinto, J.G.P. (2024). Evaluation of antimicrobial and non-steroidal antiinflammatory treatments for BRD on health and welfare in fattening bulls: a cross-sectional study. Veterinary Quarterly, 44(1), 1-11. https://doi.org/10.1080/01652176.2024.2347928
NO This work was partially funded by Virbac, Italy.
DS Minerva
RD 24 abr 2026