Research Explorer

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Researcher

Herman Barkema

Publications & Research Data

Awards & Distinctions

36 Results

2025

Farmer-veterinarian communication during herd health visits on dairy farms in Flanders, Belgium

Linda DorresteinCaroline RitterEllen de JongJannet de JongeJolanda JansenSarne De VliegherGeert VertentenHerman Barkema

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

2023

Invited review : selective treatment of clinical mastitis in dairy cattle

Ellen de JongKayley D. McCubbinDavid SpeksnijderSimon DufourJohn R. MiddletonPamela L. RueggTheo J. G. M. LamDavid F. KeltonScott McDougallSandra M. Godden et al.

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Selective treatment of nonsevere clinical mastitis does not adversely affect cure, somatic cell count, milk yield, recurrence, or culling : a systematic review and meta-analysis

Ellen de JongLien CreytensSarne De VliegherKayley D. MccubbinMya BaptisteAlexander A. LeungDavid SpeksnijderSimon DufourJohn R. MiddletonPamela L. Ruegg et al.

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

2021

Non-aureus Staphylococci and bovine udder health : current understanding and knowledge gaps

Jeroen De BuckVivian HaSohail NaushadDiego B. NobregaChristopher LubyJohn MiddletonSarne De VliegherHerman Barkema

A1 Journal Article in FRONTIERS IN VETERINARY SCIENCE

2018

Characteristics of Escherichia coli Isolated from bovine mastitis exposed to subminimum inhibitory concentrations of cefalotin or ceftazidime

Gang LiuLaidi DingBo HanSofie PiepersS Ali NaqviHerman BarkemaTariq AliSarne De VliegherSiyu XuJian Gao

A1 Journal Article in BIOMED RESEARCH INTERNATIONAL

2017

Identification of bovine-associated coagulase-negative staphylococci by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry using a direct transfer protocol

M CameronHerman BarkemaJ De BuckSarne De VliegherM ChafferJ LewisGP Keefe

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

2013

Herd level approach to high bulk milk somatic cell count problems in dairy cattle

Herman BarkemaSarne De VliegherSofie PiepersRuth N Zadoks

A1 Journal Article in VETERINARY QUARTERLY

2012

Invited review: Mastitis in dairy heifers : nature of the disease, potential impact, prevention, and control

Sarne De VliegherLK FoxSofie PiepersS McDougallHerman Barkema

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

2010

Heifers infected with coagulase-negative staphylococci in early lactation have fewer cases of clinical mastitis and higher milk production in their first lactation than noninfected heifers.

Sofie PiepersGeert OpsomerHerman BarkemaAart de KruifSarne De Vliegher

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Intramammary infections in fresh dairy heifers: to worry or not to worry…?

Sofie PiepersHerman BarkemaAart de KruifGeert OpsomerSarne De Vliegher

2009

Analytical specificity and sensitivity of a real-time polymerase chain reaction assay for identification of bovine mastitis pathogens

MT KoskinenJ HolopainenS PyoralaP BredbackaA PitkalaHerman BarkemaR BexigaJ RobersonL SolverodR Piccinini et al.

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Effect of prepartum dry cow antibiotic treatment in dairy heifers on udder health and milk production

Otlis SampimonSarne De VliegherHerman BarkemaJan SolTheo JGM Lam

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Heifer and CNS mastitis

Sarne De VliegherRuth N ZadoksHerman Barkema

Editorial material

Heifer and quarter characteristics associated with periparturient blood and milk neutrophil apoptosis in healthy heifers and in heifers with subclinical mastitis

Sofie PiepersGeert OpsomerEvelyne MeyerKristel DemeyereHerman BarkemaAart de KruifSarne De Vliegher

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Meta-analysis of the effect of oral selenium supplementation on milk selenium concentration in cattle

A CeballosJ SanchezH StryhnJB MontgomeryHerman BarkemaJ Wichtel

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Performance of API Staph ID 32 and Staph-Zym for identification of coagulase-negative staphylococci isolated from bovine milk samples

Otlis SampimonRuth N ZadoksSarne De VliegherKarlien SupréFreddy HaesebrouckHerman BarkemaJan SolTheo JGM Lam

A1 Journal Article in VETERINARY MICROBIOLOGY

Prevalence and herd-level risk factors for intramammary infection with coagulase-negative staphylococci in Dutch dairy herds

Otlis C SampimonHerman BarkemaInge MGA BerendsJan SolTheo JGM Lam

A1 Journal Article in VETERINARY MICROBIOLOGY

Prevalence and molecular characterization of Cryptosporidium spp. in dairy calves from 11 farms in Prince Edward Island, Canada

Tatjana CoklinFabienne D UehlingerJeffrey M FarberHerman BarkemaRyan M O'HandleyBrent R Dixon

A1 Journal Article in VETERINARY PARASITOLOGY

Prevalence of intramammary infection in Dutch dairy herds

Otlis SampimonHerman BarkemaInge BerendsJan SolTheo JGM Lam

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

Providing probability distributions for the causal pathogen of clinical mastitis using naive Bayesian networks

Wilma SteeneveldLC van der GaagHerman BarkemaHenk Hogeveen

A1 Journal Article in JOURNAL OF DAIRY SCIENCE

2008

Association Between CNS-infections at Calving and First Lactation Milk Production and Somatic Cell Counts in Dairy Heifers

Sofie PiepersHerman BarkemaAart de KruifGeert OpsomerSarne De Vliegher

Heifer and quarter characteristics associated with periparturient blood and milk neutrophil viability

Sofie PiepersGeert OpsomerKristel DemeyereHerman BarkemaAart de KruifEvelyne MeyerSarne De Vliegher

Intramammary infections in fresh dairy heifers: to worry or not to worry...?

Sofie PiepersGeert OpsomerAart de KruifHerman BarkemaSarne De Vliegher

Mastitis in diary heifers.

Sarne De VliegherSofie PiepersKarlien SupréHerman Barkema

2007

Approach of a high bulk tank somatic cell count problem

Herman BarkemaSarne De VliegherR ZADOKS

Impact of heifer mastitis: association with somatic cell count, production, culling, and fertility

Sofie PiepersSarne De VliegherGeert OpsomerHerman Barkema

2006

Contextual multilevel models: effects and correlations at multiple levels

H STRYHNSarne De VliegherHerman Barkema

Impact of early lactation somatic cell count in dairy heifers on udder health and production during the first lactation

Sarne De VliegherHerman BarkemaH STRYHNGeert OpsomerAart de Kruif

Prevalence and distribution of mastitis pathogens in dairy cows in Flanders

Sofie PiepersL DE MEULEMEESTERAart de KruifGeert OpsomerHerman BarkemaSarne De Vliegher

2005

Association between early lactation somatic cell count and culling of dairy heifers using Cox frailty models

Sarne De VliegherHerman BarkemaGeert OpsomerAart de KruifLuc Duchateau

Association between somatic cell count in early lactation and cutting of dairy heifers using Cox frailty models

Sarne De VliegherHerman BarkemaGeert OpsomerAart de KruifLuc Duchateau

in vitro growth inhibition of major mastitis pathogens by Staphylococcus chromogenes originating from teat apices of dairy heifers

Sarne De VliegherGeert OpsomerA VANROLLEGHEMLuc DevrieseO SAMPIMONJ SOLHerman BarkemaFreddy HaesebrouckAart de Kruif

2004

Impact of early lactation somatic cell count from Belgian dairy heifers on udder health and production during the subsequent first lactation

Sarne De VliegherHerman BarkemaH STRYHNHans LaevensI DOHOOGeert OpsomerAart de Kruif

In vitro growth inhibition of major mastitis pathogens by Staphylococcus chromogenes originating from teat apices of dairy heifers

Sarne De VliegherGeert OpsomerLuc DevrieseO SAMPIMONJ SOLHerman BarkemaFreddy HaesebrouckAart de Kruif

In vitro growth inhibition of major mastitis pathogens by Staphylococcus chromogenes originating from teat apices of dairy heifers

Sarne De VliegherGeert OpsomerA VANROLLEGHEMLuc DevrieseO SAMPIMONJ SOLHerman BarkemaFreddy HaesebrouckAart de Kruif

1998

Adoption of a service innovation in the business market : an empirical test of supply side variables

Rudolf FrambachHerman BarkemaB. NooteboomM. Wedel

A1 Journal Article in JOURNAL OF BUSINESS RESEARCH