Etiología, recuento celular, prevalencia de lesiones mamarias y pérdidas productivas en mamitis subclínicas con severas respuestas inflamatorias en ovino lechero
- B. Linage
- M.C. García-Jimeno
- M.T. Juárez
- F.J. Crespo
- C. Gonzalo
- M.ª Jesús Alcalde Aldea (coord.)
- Ceferina Vieira Aller (coord.)
- Juan José García García (coord.)
- Valentín Pérez Pérez (coord.)
- Raúl Bodas Rodríguez (coord.)
- Jesse Barandika (coord.)
Editorial: Ediciones Universidad de Salamanca ; Universidad de Salamanca
ISBN: 978-84-9012-793-3
Any de publicació: 2017
Pàgines: 301-306
Congrés: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (42. 2017. Salamanca)
Tipus: Aportació congrés
Resum
Over 2016, a total of 878 ewes with somatic cell count (SCC) > 2 x 106 cells/mldistributed in 10 flocks under test-day recording scheme, were sampled (4 times/flock) tostudy their relationship with bulk tank SCC, associated mammary pathogens, udder lesionsby palpation, and milk yield losses. A significant correlation (R2 = 0.669) was recordedbetween prevalence of these ewes and bulk tank SCC in the flocks. Results evidencedisolation of coagulase-negative staphylococci and micrococci (79.4%); followed by bacilliGram-negative, fungi and other major pathogens (4.7%); Mycoplasma agalactiae (3.3%);Corynebacterium spp. (3.3%); cocci Gram-positive catalase-negative (3.0%), and S. aureus(2.3%). Also, such ewes evidenced a high prevalence of fibrotic mammary lesions (83.3%),as well as very significant milk yield losses (22.2%) compared to ewes with low SCC. Theseresults emphasize the need to direct more attention to mastitis control, prevention andculling programs in such ewes to increase flock health and profitability.