RT Journal Article
T1 Comparison of the epidemiological behavior of mastitis pathogens by applying time-series analysis in results of milk samples submitted for microbiological examination
A1 Fernández, Gonzalo
A1 Barreal López, María Luisa
A1 Ginzo Villamayor, María José
A1 González Manteiga, Wenceslao
A1 Pombo, M. B.
A1 Prieto, A.
A1 Lago, N.
A1 González Palencia, J.
K1 Dairy cattle
K1 Mastitis
K1 Pathogens
K1 Trends
K1 Epidemiology
K1 Time series
AB The objective of this study is to examine and comparethe trends of mastitis pathogens in quarter milk samples(n=240,232) submitted for microbiological examination at theMilk Analysis Laboratory (L.I.G.A.L.) at Galicia, Spain fromJune 2005 to September 2011. Autoregressive IntegratedMovingAverage (ARIMA) models and multivariate statisticaltechniques such as Cluster Analysis were used in order todetect seasonal trends and similarities between the series trendsand to classify mastitis pathogens into relatively homogeneousgroups. The decrease of bulkmilk somatic cell counts achievedby the mastitis control program, developed in recent years inthis region, is the result of the decrease in IMI caused by alimited number of mastitis pathogens. The obtained resultsreflect a greater complexity in the behavior of mastitis pathogens,unlike the traditional classification into contagious orenvironmental. Staphylococcus aureus showed a trend similarto Streptococcus dysgalactiae, a mastitis pathogen can behavein both a contagious and an environmentalmanner. Among thetraditionally considered environmental mastitis pathogens,Strep. uberis showed a different behavior to Escherichia coliand Klebsiella pneumoniae. Coagulase-negative staphylococci(CNS) species and Streptococcus other than Strep. agalactiaeshowed differences in the trend model. Time-series analysisand multivariate statistical techniques, such as Cluster Analysis,could be powerful tools to assess the isolation trend ofmastitis pathogens because of their ability to cope with stochasticdependence of consecutive data. Furthermore, theycould be used to identify the epidemiological behavior ofmastitis pathogens using the results of milk samples submittedfor routine microbiological examination, by classifying theminto relatively homogeneous groups.
PB Springer
SN 0165-7380
YR 2013
FD 2013
LK http://hdl.handle.net/10347/32748
UL http://hdl.handle.net/10347/32748
LA eng
NO Fernández G, Barreal ML, Pombo MB, Ginzo-Villamayor MJ, González-Manteiga W, Prieto A, Lago N, González-Palencia J. Comparison of the epidemiological behavior of mastitis pathogens by applying time-series analysis in results of milk samples submitted for microbiological examination. Vet Res Commun. 2013 Dec;37(4):259-67. doi: 10.1007/s11259-013-9570-1. Epub 2013 Jun 19. PMID: 23779256.
NO This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at https://doi.org/10.1007/s11259-013-9570-1
NO The authors are grateful to the Galician dairy cattle producers and to the Galician366 veterinarians working in establishing effective mastitis control program, without whose367 work it would not have been possible to conduct this study, and Consolidating and368 Structuring Competitive Research Groups Program (CN2012/326, Xunta de Galicia).
DS Minerva
RD 23 abr 2026