mastitis treatment

September 8, 2011

evaluation

Milk Quality and Mastitis Diagnostic Tests

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison A paper describing the many different milk quality tests commonly used today.

Risks, Realities and Responsibilities Associated with Mastitis Treatments

Pamela Ruegg, University of Wisconsin, Madison, WI
Presented at 2014 Regional Meeting National Mastitis Council, Ghent Belgium
Mastitis remains the most common disease of dairy cows and treatment or prevention of this disease is the most common reason that antibiotics are administered to cows. This paper is to review the risks, realities and responsibilities associated with treatment of clinical mastitis.

Molecular Diagnostics Applied to Mastitis Problems on Dairy Farms

A. Gurjar, G. Gioia, Y. Schukken, F. Welcome, R. Zadoks, and P. Moroni, Diagnostic Pathology, Veterinary Clinics of North America
In the last decade, molecular diagnostics have been added to the toolkit of the mastitis
researcher community.

Clinical Information and Forms: Milk Quality

Milk quality and mastitis information from the School of Veterinary Medicine at the University of Wisconsin-Madison.

The Application of Evidence Based Veterinary Medicine to Mastitis Therapy

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
Reviews principles of evidence-based veterinary medicine and to discuss the application of these principles to treatment of clinical mastitis.

Treatment of Clinical Mastitis: What Research Tells Us

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
Reviews research based principles that can help practitioners improve treatment of clinical mastitis.

Treatments of Clinical Mastitis Occurring in Cows on 51 Large Dairy Herds in Wisconsin

L. Oliveira and P.L. Ruegg
Department of Dairy Science, University of Wisconsin, Madison, WI
Antimicrobials are frequently used for treatment of bovine mastitis and few studies have examined modern treatment strategies on large US dairy farms. The objective of this study was to describe treatment practices for clinical mastitis occurring in cows on large dairy herds in Wisconsin. Treatments performed on 747 cows experiencing cases of mild, moderate, or severe symptoms of clinical mastitis were recorded on 51 Wisconsin dairy farms.

Risk Factors Associated with Short-Term Post-Treatment Outcomes of Clinical Mastitis

C. Pinzon-Sanchez and P.L. Ruegg, Department of Dairy Science, University of Wisconsin-Madison
Describes selected post-treatment outcomes of milk and moderate cases of clinical mastitis and determines risk factors associated with those outcomes.

The Quest for the Perfect Test: Phenotypic Versus Genotypic Identification of Coagulase-Negative Staphylococci Associated with Bovine Mastitis

P.L. Ruegg, Department of Dairy Science, University of Wisconsin-Madison
Discusses the utility of phenotypic identification systems for CNS in light of evolving systems of genotypic identification.

The Selective Treatment of Clinical Mastitis Based on On-Farm Culture Results: I. Effects on Antibiotic Use, Milk Withholding Time and Short-Term Clinical and Bacteriological Outcomes

Lago, A. et al. Department of Veterinary Population Medicine, University of Minnesota-Saint Paul
Investigates the efficacy of using an on-farm milk culture system to guide strategic treatment decisions in cows with milk and moderate clinical mastitis, in regard to short-term outcomes.

The Selective Treatment of Clinical Mastitis Based on On-Farm Culture Results: II. Effects on Lactation Performance, Including Clinical Mastitis Recurrence, Somatic Cell Count, Milk Production and Cow Survival

Lago, A. et al. Department of Veterinary Population Medicine, University of Minnesota-Saint Paul
Investigates the efficacy of using an on-farm culture system to guide strategic treatment decisions in cows with mild and moderate clinical mastitis, in regard to long-term outcomes.

drug therapy

Drug Residue Déjà Vu: Avoiding Residues in Milk and Cull Dairy Cows

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
While mastitis is the most common disease of adult dairy cows and accounts for most usage of antibiotics cows are also treated for other infectious diseases, including respiratory and uterine infections and infectious foot disease. The risk of antimicrobial residues in meat and milk is well known and if the focus of intensive regulatory processes. The purpose of this paper is to review important data about how antimicrobials can be safely and judiciously used on dairy farms.

PCR, PFGE, ABCD…Understanding and Using Molecular Tests to Diagnose and Control Mastitis

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
The technical definition of mastitis is “inflammation of the mammary gland” but on a practical basis, almost all bovine mastitis is caused by bacteria. Appropriate mastitis control is based on knowledge of the etiology, thus identification of pathogens is a fundamental aspect of mastitis control programs. The use of molecular techniques to identify bacterial DNA from milk samples is increasingly used in an attempt to improve diagnosis. The purpose of this paper is to discuss practical aspects of using these tests in mastitis control programs.

Animal Drugs @ FDA

Searchable database of FDA-approved drugs. Includes information on ingredients, dosage, withdrawal time and tolerances.

Antimicrobial Residues and Resistance: Understanding and Managing Drug Usage on Dairy Farms

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
The risk of antimicrobial residues in meat and milk is well known and if the focus of intensive regulatory processes. However, there is increasing public concern about the impact of antimicrobial usage in food animals on the development of antimicrobial resistance. The purpose of this paper is to review important data about how antimicrobials can be safely and judiciously used on dairy farms.

Management Practices and Reported Antimicrobial Usage on Conventional and Organic Dairy Farms

Zwald, A.G., Ruegg, P.L. et al.
Compared reported antimicrobial usage between conventional and organic dairy farms.

Treatment Practices and Quantification of Antimicrobial Drug Usage in Conventional and Organic Dairy Farms in Wisconsin

M. Pol and P.L. Ruegg, Department of Dairy Science, University of Wisconsin-Madison
Develops a method to quantify antimicrobial drug usage and treatment practices on conventional and organic dairy farms that had been recruited to represent a broad spectrum of potential exposure to antimicrobial drugs.

Relationship Between Results of In Vitro Susceptibility Tests and Outcomes Following Treatment with Pirlimycin Hydrochloride in Cows with Subclinical Mastitis Associated with Gram-Positive Pathogens

Apparao, D., Oliveira, L. and P.L Ruegg, Dept. of Dairy Science, University of Wisconsin-Madison
Determines the relationship between results of antimicrobial susceptibility tests and outcomes of cows with subclinical mastitis that were treated with pirlimycin.

Relationship Between In Vitro Susceptibility Test Results and Treatment Outcomes for Gram-Positive Mastitis Pathogens Following Treatment with Cephapirin Sodium

Apparao, M.D., Ruegg, P.L. et al. Department of Dairy Science, University of Wisconsin-Madison
Determines if results of in vitro antimicrobial susceptibility testing of mastitis pathogens were associated with bacteriologic cure following intramammary administration of cephapirin sodium.

Relationship Between Antimicrobial Drug Usage and Antimicrobial Susceptibility of Gram-Positive Mastitis Pathogens

M. Pol and P.L. Ruegg, Department of Dairy Science, University of Wisconsin-Madison
Analyzes relationships between usage of antimicrobial drugs on dairy farms and results of antimicrobial susceptibility testing of mastitis pathogens.

isolation of staphylococcus aureus

Enterotoxin Production, Enterotoxin Gene Distribution and Genetic Diversity of Staphylococcus aureus Recovered from Milk of Cows with Subclinical Mastitis

Oliveira, L. et al. Department of Dairy Science, University of Wisconsin-Madison
Evaluates the production of classical enterotoxins and TSST-I, distribution of enterotoxin geners, and genetic diversity of S aureus recovered from milk obtained from cows with subclinical mastitis.

Evaluation of Petrifilm for the Isolation of Staphylococcus aureus from Milk Samples

Silva, B.O. et al.  Department of Dairy Science, University of Wisconsin-Madison
Determines the sensitivity of Petrifilm compared with results of standard and augmented microbiological techniques, and determines the specificity of the Petrifilm method based on different interpretation parameters.

other zoonotic pathogens

Salmonella, Listeria, E. coli and Mycobacterium Paratuberculosis

Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
Information on these zoonotic pathogens in milk.

Calf Diseases and Prevention

Dr. Sheila McGuirk and Dr. Pamela Ruegg, Dairy Science Department, University of Wisconsin-Madison
Discussing three disease problems in the young calf: septicemia, diarrhea and pneumonia. Focus is on recognizing the factors that put young dairy calves at risk of developing disease and the locations on the dairy that most apt to act as the source of infection.

links

Food Animal Production Medicine

Research program of the University of Wisconsin School of Veterinary Medicine. Includes clinical information, publications and consultation services.

Consultant

A diagnostic support system for veterinary medicine from Cornell University to suggest possible diagnoses or causes for clinical signs. CONSULTANT provides brief synopses of the potential causes including: 1) a general description, 2) species affected, 3) the signs associated with it, and 4) a list of recent literature references.

PubMed

Contains information on veterinary diagnosis and treatment, animal testing, research, rights and regulations.

FDA Center for Veterinary Medicine

FDA Approved Animal Drug Products online database. Includes Approved Animal Drug Products, Green Book, Code of Federal Regulations, Federal Register, Patents and much more.

Food Animal Residue Avoidance and Depletion Program

FARAD provides livestock producers, extension specialists and veterinarians with practical information on how to avoid drug, pesticide and environmental contaminant residue problems.

NetVet

Comprehensive online database for veterinary resources. Includes veterinary overview, veterinary schools and curricula, medical dictionaries, literature search and online journals.

‘Virtual’ Livestock Center

Online reference source for dairy cattle including clinical and vaccination information.

Wisconsin Veterinary Medicine Association

Provides high quality information and services to veterinarians and the general public. Includes a section for Members Only section for veterinarians that features discussion groups that will provide a forum for all WVMA members from across the state and the country to discuss the latest information on a range of veterinary and business topics.