MN Dairy Health Conference Program

Who

• Dairy practitioners
• Dairy industry personnel
• Animal scientists
• Dairy farmers/farm managers
• Nutritionists

When
May 21-22, 2008

Where
Continuing Education & Conference Center
St. Paul Campus
University of Minnesota

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Program
Wednesday, May 21
Room 135 Continuing Education and Conference Center

7:45 a.m. Welcome, Paul Rapnicki

8:00
A lactating case study, David Byers
A lesson in:

• The basic principles of nutrition
• Differentiating metabolic and infectious diseases
• Utilizing professional colleauges

9:00
Feed efficiency - impact on economics, Mike Hutjens, U of IL

• Economic measurements of feeding programs
• Approaches to on-farm applications
• Factors that impact feed efficiency

10:00 Break

10:30
Amino acid nutrition of lactating dairy cows: Does DDG change the picture?, Peter Robinson, UC Davis

• DDG use has increased diet corn protein levels
• DDG impact on amino acid levels of absorable protein
• DDG use has little impact on cow productivity

11:30
Lameness issues in dairy cattle, Chuck Guard, Cornell University

• Detection and action issues
• Strategies for improvement
• Motivating managers and workers

12:00 p.m. Lunch

1:15
Drug residue avoidance and quality assurance in beef from market dairy cattle, Barbara Knust, U of M

• A discussion of recent survey results, drug residue testing procedures, and the economic and legal issues surrounding violative residues in beef from dairy cattle.

2:00
You suspect a foreign animal disesase in a client’s animal - now what do you do?, Susan Detmer, U of M

• Diagnostic dos and don'ts for foreign animal disease.
• Differentials for mucosal diseases in cattle.
• Review of FMD, Rinderpest, BVDV, and BTV.

2:45 Break

3:15
Pregnancy loss in dairy cattle, Paul Fricke, UW Madison

• When to preg check and why.
• Comparison of methods for pregnancy and diagnosis.
• Setting up reproductive management protocols.

4:00
Economic importance of dairy reproductive programs, John Fetrow, U of M

• Many dairies are suffering from poor reproductive performance.
• Simple synchronization programs may be able to boost performance with less effort and more consistent results.
• A practical approach to evaluating the economic impact of a proposed program will be presented.

5:00 Monsanto BBQ Social at the Pomeroy Student-Alumni Learning Center

Thursday, May 22
Room 135 Continuing Education and Conference Center

7:00 a.m. Pfizer Technical Update Breakfast
"Is There a Future for Pharmaceutical Management of Cow Reproduction: North American Perspective", Jim Lauderdale

8:00 Break

8:30
A four-letter word for bedding material, Hank Spencer, Monsanto Dairy Business

• Dried manure, bedded packs, composted manure, or digested solids?
• How are these materials utilized as bedding material by dairy operations?
• How can we help producers manage their bedding material choices?

9:15
Salmonella - issues and challenges, Larry Slinden, Epitopix

10:00 Break

10:30
Salmonella - management and solutions, Larry Slinden, Epitopix

11:15
Updates from the Minnesota Board of Animal Health, William Hartmann, MBAH

• Bovine tuberculosis investigation
• Minnesota’s Johne’s disease program

12:00 p.m. Lunch

1:00
Use of on-farm culture systems to diagnose and treat clinical mastistis, Alfonso Lago, U of M

• Effect of using an on-farm culture based treatment on:
          antibiotic use
          bacterological cure for clinial mastitis

1:15
Can commercial bedding conditioners reduce environmental bacterial counts in bedding?, Brenda Kuechle, U of M

• What is the effect of bedding conditioners on bacterial counts in different bedding types?
• Are acidic or alkaline bedding conditioners more effective with different bedding types?
• How often should bedding conditioners be applied in order to be effective?

1:30
Diagnosis of early pregnancy using transrectal ultrasonography, Juan Romano, U of M

• Pregnancy diagnosis is an important tool in reproductive management.
• The use of transrectal ultrasonography is increasing in dairy practice.
• Importance of a correct diagnosis of pregnancy. The practical, economical, and research implications of misdiagnosis will be discussed.

1:45
Bottle vs. tube: Does colostrum feeding method affect passive transfer of IgG?, Katie Konkol, U of  M

• Appropriate colustrum feeding is essential for the health and success of a newborn calf.
• Proper methods of feeding (bottle vs. tube) can affect the efficiency of absorption of IgG and decrease the incidence of failure of passive transfer.
• No previous studies have investigated the method of feeding and its impact on the efficiency of IgG absorption.

2:00
Relationship between colostrum bacteria counts and passive transfer of IgG in dairy calves, Jennifer Peterson, U of  M

• Bacteria in colostrum may interfer with IgG absorption.
• Current industry recommendations are for total bacteria counts in colostrum to be <100,000 cfu/mL, but scientifically derived cut points have not been established.
• We will discribe the the relationship between bacteria counts in colostrum and efficiency of IgG absorbtion.

2:15
Effect of feeding raw vs. pasteurized colostrum on passive transfer of IgG in dairy calves, Mary Donahue, U of M

• A pilot study indicated that feeding pasteurized colostrum enhanced IgG uptake by reducing microbial plate counts.
• A larger study was undertaken in six commerical dairy herds to determine if these results could be reproduced.
• We will report on the effect of feeding pasteurized versus raw colostrum on colostrum quality on passive transfer of IgG in calves in commercial dairy herds.

2:30 Break

2:45
Efficacy of vaccination to control Johne’s disease in dairy herds, Barbara Knust, U of M

3:00
Will feeding colostrum replacers reduce transmission of M. avium subsp. paratuberculosis in dairy herds?, Patrick Pithua, U of M

• Does maternal colostrum really increase the risk of M. avium paratuberculosis in calves?
• Is the use of colustrum replacer in the prevention of M. avium paratuberculosis effective?

3:15
Detecting Johne's disease heavy-shedders, Luis Espejo, U of M

• Use of environmental samples
• Use of pooled samples
• Use of different fecal tests (culture and PCR)

3:30
Is feeding pasteurized waste milk a risk factor for transmission of M. avium subsp. paratuberculosis?, Sandra Godden, U of M

• Feeding pasteurized milk can be a very cost-effective way to raise healthy calves to weaning age.
• The long term effect of this practice on production and longevity needs study.
• The long term effect of this practice on risk for infection with m. paratuberculosis will be described.

3:45
Does the MN Johne’s disease control program work?: Progress to date, future directions, and the role of the dairy veterinarian, Scott Wells, U of M

• Results from the Minnesota Johne’s Disease Demonstration Herd Program show reduction in incidence of JD in participating herds.
• Results from evaluation of data from the Minnesota Voluntary Bovine JD control program show reduction in JD seroprevalence in participating herds.
• However, continued federal funding for the national Voluntary Bovine JD control program is uncertain.
• What should the next generation JD control program look like?

4:00
Drawing for 2009 complimentary registrations.
Adjourn

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