Current Knowledge and Future Solutions
edited by H. Hogeveen
Mastitis is one of the most important diseases in the dairy sector. Being a multifactorial disease, caused by multiple pathogens, control remains a difficult issue.
Mastitis in Dairy Production reflects the current knowledge from all over the world on mastitis as it was presented during the 4th IDF International Mastitis Conference, held in June 2005 in Maastricht, the Netherlands.
Contents
Kenotes
- Mastitis research and control: Where do we come from and where are we going?
- Pathogenesis of mastitis and mammary gland immunity: Where we are and
where we should go
- Mastitis management in an economic framework
- New antimicrobial agents in mastitis therapy
- The contribution of science to progress in milking technology
- Mastitis in small ruminants
- Animal welfare: Of increasing importance in modern dairy production
- Diagnosis of mastitis and indicators of milk quality
- Mastitis control systems: The Norwegian experience
- Antimicrobial resistance in mastitis organisms as a public health threat
- Environmental control for mastitis prevention, milk quality and food safety
- Genetic improvement in mastitis control programmes
- Milk production and mastitis control in emerging dairy countries:
The experience in Chile
Pathogenesis and immunology
- Pathogenesis of chronic intramammary Escherichia coli infections
- Persistence of Streptococcus uberis in bovine mammary epithelial cells
- Association between genotype of Staphylococcus aureus, recovered at the
end of lactation, and cure of the organism in the dry period
- Toxin genes of Staphylococcus aureus isolated from bovine intramammary
infection of different clinical characteristics and outcome
- Changes in leucocyte surface receptor expression and functional responses in
dairy cows with Staphylococcus aureus infection
- Vitamin E supplementation and udder health: A meta-analysis
- a-Tocopherol concentration and stereoisomer composition in plasma and milk
from dairy cows fed natural or synthetic vitamin E around calving
- Comparison of blood and milk non-specific immune parameters in heifers
after calving
- Influence of resident milk neutrophils chemiluminescence and viability on
the severity of bovine coliform mastitis
- Potential association of polymorphisms in the bovine CXCR2 gene with
neutrophil survival and killing ability
- Differential cell count and interdependence of udder quarters
- Response of rhlf-transgenic dairy cows to expermentally induced
escherichia coli mastitis
- Cell function in the bovine mammary gland: Interdependence of healthy and
infected udder quarters
- Delayed neutrophil apoptosis in bovine subclinical mastitis: Possible
involvement in persistent accumulation of cells in milk
Economics of mastitis and mastitis management
- Use of partial budgeting to determine the economic benefits of antibiotic
treatment during lactation of chronic subclinical mastitis caused by
- Staphylococcus aureus
- Impact of epidemiological, zootechnical, managerial and price factors on the
economic efficacy of subclinical mastitis treatment during lactation
- Stochastic economic modeling of the use of penethamate hydriodide
(Mamyzin®) in heifers around calving to control peri-parturient mastitis
- Importance of uncertainties in the effects of pathogen specific mastitis on
profit in dairy herds estimated by stochastic simulation
- Costs and benefits of improved milking practices in smallholder dairy farms
in the 10th region of Chile
- Udder health, treatments and pathogens in organic dairy herds in the
Netherlands
- High milk yields and the risk of mastitis in different herd environments
- Association between somatic cell count in early lactation and culling of dairy
heifers using Cox frailty models
Therapy and immunization
- Reducing subclinical and clinical mastitis in dairy heifers by precalving
infusion of a teat sealant and/or parenteral antibiotic therapy
- Chemotherapeutic approaches to bovine mastitis caused by Staphylococcus
aureus through strain identification using random amplified polymorphic
- DNA analysis
- Efficacy of a cloxacillin dry cow product for treatment of heifers on farms
with a low and a high prevalence of heifer mastitis in The Netherlands
- Efficacy of a J-5 Escherichia coli bacterin in clinical coliform mastitis of dairy
cattle
- Effect of carprofen following experimentally induced E. coli mastitis in
primiparous cows
- Iron uptake and growth responses by Escherichia coli cultured with antibodies
from cows immunized with high affinity ferric receptors
- In vitro susceptibility of biofilm growing Staphylococcus aureus isolates for
10 antibiotics
- Better management of mastitis treatment: Contribution of consensus
conference methodology
- Leukocyte dynamics and cytokine expression in response to mycobacterial
water soluble compounds in bovine mastitis
- Direct and indirect effects of subclinical mastitis treatment in dairy herds
- Therapeutic treatment with casein hydrolyzate eradicate effectively bacterial
infection in treated mammary quarters in cows
- Antibiotic resistance in Staphylococcus aureus isolated from bovine udders:
Development related to introduction of dry cow therapy?
- Orbeseal® and Orbenin® EDC in combination for the treatment of
intra-mammary infections at drying off and prevention of new infections
during the dry period and early lactation in dairy cows
- The safety and efficacy of the immunotherapy treatment Y-Complex in a
clinical mastitis study under field conditions
- Therapeutic effect of systemic or intra-mammary antibiotic treatment of
bovine sub-clinical mastitis during lactation
- An alternative treatment trial for Staphylococcus aureus mastitis in
organically managed dairy cattle
- Prepartum intramammary antibiotic therapy: Effects on udder health, milk
production, and reproductive performance in dairy heifers
Milking technology
- Milking machine test survey
- Machine milking risk factors for teat end callosity in dairy cows on herd level
- Long-term effects of different pulsation characteristics on teat thickness,
teat skin moisture and teat skin pH of dairy cows
- Details of some of the forces applied to the cow’s teat during milking
- Effects of lactic acid teat dip on chapped teat skin
- Technical success and effectiveness of teat cleaning in automatic milking in
Finland
Diagnosis of mastitis and indicators for milk quality
- Use and interpretation of bacteriology in the diagnosis of bovine
intramammary infection
- Evaluation of the Petrifilm™ culture system for the identification of mastitis
bacteria as compared to standard bacteriological methods
- Testing for Staphylococcus aureus in herds with a low bulk milk somatic
cell count
- Simultaneous detection of mastitis pathogens in milk by multiplex
real-time polymerase chain reaction
- Optimised sample sizes for analysing the genetic heterogeneity of mammary
pathogen isolates from environmental samples
- Somatic cell count patterns to improve udder health by genetics and
management
- Changes in lactate dehydrogenase, N-acetyl-ß-D-glucosaminase, and somatic
cell count in relation to development of mastitis in dairy cows
- Prevalence of contagious mastitis pathogens in bulk tank milk from Prince
Edward Island dairy farms
- A Bayesian approach to interpreting Staphylococcus aureus diagnostic
indicators for on-farm decision making
- Variation in somatic cell count and milk components in fraction collected
quarter milk samples
- Using milk L (+) lactate as a diagnostic tool to detect bovine mastitis in
the early lactation
- Milk amyloid A (MAA) concentration and somatic cell count (SCC) in the
diagnosis of bovine mastitis
- Diagnosis of mastitis by benzoic acid (benzene sulfonic acid)and sodium
carbonate on pregnant and lactating mastitic animals
- Use of on-farm testing of somatic cell count for selection of udder quarters
for bacteriological culturing
- Diagnostic value of the California Mastitis Test in comparison to
electronically-counted somatic cells in bovine milk
Mastitis in small ruminants
- Aetiological, clinical and epidemiological characterization of clinical mastitis
in dairy sheep
- Detection of enterotoxins and virulence genes in Staphylococcus aureus
strains isolated from sheep with subclinical mastitis
- Subclinical mastitis affects the plasmin system, milk composition and curd
yield in sheep and goats: comparative aspects
- Host response reactions of the lactating ovine udder during experimental
challenge with Staphylococcus epidermidis
- Efficacy of antibiotic treatment at drying-off in curing existing infections
and preventing new infections in dairy goats
Animal welfare issues related to mastitis
- Associations between hygiene scores and udder health parameters in organic
dairy herds
- Teat lesions and teat necrosis in heifers in The Netherlands
- Effect of stockperson-dairy cow interaction to mammary gland health
Control programmes
- The systems approach to udder health control
- The importance of a low SCC premium policy in the reduction of population
wide SCC levels
- Use of SCC in genetic selection for reduced incidence of mastitis: A mixture
model approach
- Genetic improvement of mastitis resistance in Norwegian Red (NRF)
- Social factors related to mastitis control practices: The role of dairy farmers’
knowledge, attitude, values, behaviour and networks
- Mastitis and farmers perceptions and actions: An anthropological perspective
to the phenomenon of mastitis
- Implementation of recommended mastitis prevention management practices
and the herd level prevalence of contagious mastitis pathogens on Canadian
dairy farms
- A national research network to promote mastitis control in Canada
- Mastitis control program in The Netherlands: Goal, tools and conditions
- “FRISKKO - JUVER” (“Healthycow - Udder”) A systematic veterinary approach
to udder disease in dairy herds
- Monitoring daily measurements of somatic cell count: Automatic and on-line
detection of mastitis
- A biological model for detecting individual cow mastitis risk based on lactate
dehydrogenase
- Risk of clinical mastitis within lactation in Dutch dairy cattle
Environmental control
- Feeding factors associated with clinical mastitis of first parity cows
- Isolation of Streptococcus uberis from different sites of the dairy cow
- Risk factors contributing to udder health depression during alpine summer
pasturing in Swiss dairy herds
- Streptococcus uberis population dynamics in the New Zealand pastoral dairy
farm
- A methodology to quantitatively identify effective measures to control
environmental mastitis
Food safety issues related to mastitis
- On-Farm sources of foodborne pathogens: Isolation from the dairy farm
environment
Shiga Toxin Genes from Escherichia coli strains isolated from mastitic milk
- Influences on excretion of antibiotic residues in milk with special emphasis on
milking frequency
- Antimicrobial susceptibility of Staphylococcus spp. isolated at dry-off and
calving
- Prepartum intramammary antibiotic therapy: Effect on risk of antibiotic
residues in milk from dairy heifers
Mastitis control in emerging dairy countries
- Role of selective dry cow therapy in prevention of mastitis in dairy herds
with high disease prevalence
- Mastitis control in Uruguay: Strengths and weaknesses
- The impact of intervention on mastitis in an emerging dairy developing
country-Uganda
- Environmental factors affecting somatic cells counts in milk from small
dairies in Southern Brazil
- Risk indicators associated with Staphylococcus aureus subclinical mastitis
in smallholder dairy cows in Tanzania
- Subclinical mastitis in buffaloes in different herd sizes and milking
management systems
Index
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