RT Journal Article
T1 Impact of Overuse and Sexually Transmitted Infections on Seminal Parameters of Extensively Managed Bulls
A1 Montoya Monsalve, Giovanni
A1 Sánchez Calabuig, María Jesús
A1 Blanco Murcia, Francisco Javier
A1 Elvira, Laura
A1 Gutiérrez Adán, Alfonso
A1 Ramos Ibeas, Priscila
AB Natural service is currently the predominant method of breeding in extensively managed beef herds. In these herds, the importance of the bull has been largely overlooked, focusing instead on female fertility. However, the bull might be the most important factor in determining the reproductive performance of the herd, because one subfertile or infertile bull could mean a decrease of 25 to 40 calves per year. Thus, bull management is critical to increase herd fertility. Infectious bovine rhinotracheitis (IBR) and bovine viral diarrhea (BVD) are infections associated with reduced conception rates. In this study, we analyzed the effect of IBR, BVD, and bull: cow ratio on seminal parameters of the bull and herd fertility, finding a significant negative effect of BVD on sperm concentration and motility, and a negative correlation between the number of cows per bull and herd fertility. Our data suggest that serological control of BVD and sperm parameters, as well as including less than 40 cows per bull, could improve the reproductive efficiency of the herd in extensively managed herds.
PB MDPI
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/116683
UL https://hdl.handle.net/20.500.14352/116683
LA eng
NO Montoya-Monsalve, G., Sánchez-Calabuig, M.-J., Blanco-Murcia, J., Elvira, L., Gutiérrez-Adán, A., & Ramos-Ibeas, P. (2021). Impact of Overuse and Sexually Transmitted Infections on Seminal Parameters of Extensively Managed Bulls. Animals, 11(3), 827. https://doi.org/10.3390/ani11030827
NO Justificación de autores:G.M.-M. and L.E. performed sample collection and analysis, M.-J.S.-C., A.G.-A., and P.R.-I. designed the experiment and analyzed the data; M.-J.S.-C. and P.R.-I. wrote the manuscript, J.B.-M. contributed to the design and draft preparation. All authors participated in the supervision and revision of the manuscript. All authors have read and agreed to the published version of the manuscript.
DS Docta Complutense
RD 10 abr 2025