2002

Cover image of the 35th Conference Proceedings: Holstein cows standing in a row at a fence. A small group of cattle are bunched together in a pen. Yellow background.

Proceedings of the Thirty-Fifth Annual Conference. American Association of Bovine Practitioners. September 26-28, 2002. Madison, Wisconsin.

Editor: Robert A. Smith
Executive Vice President: James A. Jarrett
Advertising Representative: J. T. O'Brien & Assoc.
Publisher: Frontier Printers, Inc.

Published: 2002-09-26

Front / Back Matter

General Sessions

Rendering Farm Mortalities How Veterinarians Can Influence the Cost?

Dave Kirstein

1-6
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NYSCHAP A Model of Veterinarian Involvement in Animal Health and Environmental Issues

Roger G. Ellis

8-12
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Management Guidelines During Harvest and Storage of Silage

Limin Kung, Jr., Jeanne Neylon

13-17
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Incorporating Consulting Into Veterinary Practice

Donald H. Tyler

18-24
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Relationship of Polyarthritis and Respiratory Disease in Cattle

Ted Clark

26-29
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Beef Sessions

Carcass Disposal by Composting

John Kube

30-37
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Optimizing Reproductive Efficiency in the Beef Herd

L. A. Horstman

39-40
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Observations of Management Intensive Grazing and Forage Management

Dave Lubben

42-44
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Factors Affecting Profitability of the Cow-Calf Enterprise

Barry H. Dunn

45-49
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Body Temperature in Feedlot Cattle

Terry L. Madler

51-57
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Feedlot Diagnostics and Common Sense

Robert D. Glock

58-60
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Feedlot Biosecurity-Security in the Real World Includes applications to cow-calf operations

Dee Griffin

61-70
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Dairy Sessions

Managing Heat Stress In Dairy Facilities

J. F. Smith, M. J. Brouk, J. P. Harner, III

71-76
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Microbiological Water Quality for Optimal Livestock Production and Health An absence of data?

Jeffrey LeJeune, John M. Gay

77-82
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Bedding Management and Udder Health

Jeffrey K. Reneau, Russell F. Bey, Ralph J. Farnsworth

83-90
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Lighting the Way to Optimal Cow Performance

Geoffrey E. Dahl

92-96
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The Influence of Barn Design on Dairy Cow Hygiene, Lameness and Udder Health

Nigel B. Cook

97-103
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Rethinking Coliform Vaccine Programs

J. L. Burton, R. J. Erskine

104-111
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Fertility Factors Which Ones Are Really Important?

P. L. Senger

112-123
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What Goes In Must Come Out Phosphorus Balance on Dairy Farms

Larry Satter

125-130
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Energy Levels in Transition Diets Enough But Not Too Much

Gabriella A. Varga

131-138
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Veterinary Technician Session

Thinking Outside the Box Utilizing Veterinary Technicians in Food Animal Practice

Deborah Stevenson

139-141
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Increasing Your Practice's Output and Better Serving your Clients Utilizing a Veterinarian/Technician Team Approach

John D. Day, Jannell Kral

142-144
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The Veterinary Practice Act

Frances O. Smith

145
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BGA Guidelines Review & Summary

Dee Griffin

146-148
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Principles of Bovine Pharmacology

Sarah Wagner

149-155
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Regulations Concerning Food Animal Drug Use

Mike Apley

156-158
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Research Summaries - Beef

Antimicrobial Peptides and Surfactant Proteins Potential New Factors Against Respiratory Tract Infection

Mark R. Ackerman, Kim A. Brogden, P. B. McCray, Jr.

159-165
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Leptin The Key to Beef Heifer Puberty and Its Enhancement by Monensin

Jerome Baker, Dan T. Brown, Mel Pence, Rhonda Vann, Duane H. Keisler

165-167
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Health and Performance Effects of Inadequate Colostral Transfer in Beef Calves

R. D. Dewell, L. L. Hungerford, J. E. Keen, Roman L. Hruska, D. M. Grotelueschen, G. P. Rupp, D. D. Griffin

168
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A Longitudinal Study to Describe the Presence of Escherichia coli 0157:H7 and Salmonella spp in Feedlot Cattle Pens

D. R. Smith, R. A. Moxley, S. Hinkley, T. J. Klopfenstein

169
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The Effect of Metaphylactic Antimicrobial Use on the Development of Antimicrobial Resistance in Fecal E. coli Isolates of Feedlot Cattle

Sylvia Checkley, Manuel Chirino-Trejo, Eugene Janzen, Cheryl Waldner, John Campbell

170-171
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Diagnostic Testing for Johne's Disease in the Cow-Calf Herd

Sylvia Checkley, Cheryl Waldner, John Campbell, Greg Appleyard, Edward Clark, Eugene Janzen

171
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Evaluation of Alternate Year Vaccination Practices in a Cow-Calf Herd

Todd Marsh, Chris Chase

172
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Effect of Dose of GnRH Used in the Ovsynch System on AI Pregnancy Rates in Beef Cows

W. Dee Whittier, John B. Hall, Amanda Britt, Mark Cline

173
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Treatment for Bovine Respiratory Disease in U.S. Feedlots

Guy H. Loneragan, David A. Dargatz, Bruce A. Wagner, Nora E. Wineland

174
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Research Summaries - Dairy I

Herd Level Indicators for the Prediction of High-Risk Dairy Herds for Subclinical Ketosis

Todd Duffield, Randal Bagg

175-176
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Does Calfbood Infection with Cryptosporidium Impact Future Performance of Dairy Heifers?

Daryl Nydam, Stephanie L. Schaaf, Susan Wade, Hussni Mohammed

176
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Risk of Drinking-water Outbreaks of Cryptosporidiosis in Humans Caused by Cattle in Watersheds

Daryl V. Nydam, Gabbi Lindergard, Susan E. Wade, Stephanie L. Schaaf, Hussni O. Mohammed

177
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Behavioral and Physiologic Responses to Tail Docking in Calves and Preparturient Heifers

D. A. Schreiner, P. L. Ruegg

178
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Effect of Tail Docking on Udder Hygiene and Milk Quality

D. A. Schreiner, P. L. Ruegg

179
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Abomasal and Duodenal Activity Alterations in Periparturient Dairy Cattle

Erin Malone, Nathan Marti, Scott Madill, Melvyn Fahning

180
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Monitoring Lactating and Non-lactating Cow Udder Infection Dynamics Using Individual Cow Somatic Cell Counts

Nigel B. Cook, Tom B. Bennett, Kathy M. Emery, Ken Nordlund

181
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Antimicrobial Resistance of Campylobacter Isolated from Organic and Conventional Dairy Farms in the Midwestern and Northeastern United States

L. W. Halbert, J. B. Kaneene, P. L. Ruegg, L. D. Warnick, S. J. Wells, L. Mansfield, A. Green, A. Geiger, C. Fossler

183
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Metabolic Predictors of Disease in Transition Dairy Cows

Steven LeBlanc, Todd Duffield, Ken Leslie

184
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Effect of a Novel Salmonella Vaccine on Performance in a Large Expansion Dairy

Daryll Emery, Darren Straub, Larry Slinden, Jim Sandstrom

185
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Evaluation of Teat Cleanliness after Use of a Powered Mechanical Teat Scrubber

A. Johnson, P. Rapnicki, S. Stewart, S. Godden, Noah Barka

186
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Evaluation of a Modified Heatsynch Estrus Synchronization Program on a California Commercial Dairy

A. P. Bos, A. P. Belschner, N. Michael

187
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Research Summaries - Dairy II

Persistent Infection of Ovine Herpes virus Type 2 in a Dairy Herd

Robert J. Callan, Dave C. Van Metre, Jenny G. Powers, Cameo Carbone, Jane Carman, R. Page Dinsmore, Hong Li, James K. Collins

182
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Evaluation of Keto-Test in Urine and Milk for the Detection of Subclinical Ketosis in Periparturient Holstein Dairy Cattle

Tera M. Osborne, Ken E. Leslie, Todd Duffield, Christina S. Petersson, Jeromy Ten Hag, Yoshihiro Okada

188-189
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Health Impact of a Stall Divider Raised Nine Inches in Side-lunge Stalls for 900 Cows

Ken Nordlund, Simon Peek, Tom Bennett, Jerry Gaska

189
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Pasteurization Effects on Mycobacterium paratuberculosis, Escherichia coli 0157:H7, Salmonella spp, Listeria monocytogenes, and Staphylococcus aureus

Lorissa Green, Sandra Godden, Joellen Feirtag, John Fetrow, Scott Wells

190
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Impact of Prepartum Administration of Rumensin CRC on Milk Production in Lactating Dairy Cows in Quebec

M. Brodeur, L. DesCôteaux, E. Bouchard, L. Dutil, D. DuTremblay, R. Bagg, T. Duffield, P. Dick

191
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An Evaluation of the ColiMast™ Test for Detection of Coliform Mastitis in Dairy Cattle

Sally Gawrylash, Ken Leslie, Marie Archambault, Anna Bashiri

192
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Evaluation of Neutrophil Function in Periparturient Dairy Cattle

G. J. Stevenson, T. Duffield, J. L. Caswell

193
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A Field Trial to Evaluate the Effects of Fore-stripping on Milk-Flow Rates

P. Rapnicki, A. Johnson, S. Stewart, S. Godden

194
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Isolation of Mycoplasma from Cows' Milk Four-Laboratory Comparison

H. Hirst, P. Dinsmore, D. Hyatt, F. Garry

195
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Effect of a Monensin Slow-release Capsule at Dry-off on Ketolactia and Milk Yield in Holstein Cows

Pedro Melendez, Art Donovan

196
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Seroprevalence of an Endometriotropic Bovine Herpes Virus-4 in a Georgia Dairy

Mel Pence, Kendall S. Frazier, Charles A. Baldwin, Joe West, John Bernard, Alan Liggett, Debra Miller, Murray E. Hines, III, Eloise Styer

197-198
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Sonographic Appearance of Injection and Natural Edema in the Udder of Show Cows

R. O'Brien

199
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Effect of Nutrition on Conception Rate in Dairy Cows after Ovulation Synchronization and Timed Insemination

K. Yamada, T. Nakaoed

200
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Research Summaries - General

Determining Relevant Competencies for National Veterinary Food Animal Curricula

Robert B. Miller, Ross P. Cowart, Laura E. Hardin

201
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Microscopic Evaluation of Direct Fecal Smears in the Assessment of Bovine Neonatal Enteritis

Sean P. Lawson, Robert J. Callan

202
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Bacterial Culture Results of Septic Arthritis in Cattle

David Francoz, André Desrochers, Gilles Fecteau, Mado Fortin

203
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A Rapid Serologic Test for the Detection of Antibodies to Mycobacterium paratuberculosis with Applications for Bovine Practitioners

T. A. Jackson, P. Cecchetti, M. McCrann

204
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Hemodynamics in the Normal and Laminitic Bovine Digit

E. B. Belknap, H. C. Lin, U. Christmann, J. K. Belknap

205
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Effect of Genistein on Bovine Herpes virus 1 Infections In vivo

Lyle Braun, Mark Braunschmidt, Nicholas Arias, Regina L. Wixon, Chungyang Wang, Christopher C. L. Chase

206
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The Application of Ultrasonographic Imaging to Determine Sole Horn Thickness in the Bovine Claw

Sarel R. van Amstel

207
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Modified Live Type 1a Bovine Viral Diarrhea Virus (BVDV) Provides Fetal Protection Against Challenge with a Type 2 BVDV

John Schnackel, Hana Van Campen

208
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A Three-Dimensional Animated Model of Abomasal Displacement and Volvulus

André Desrochers, Denis Harvey, Félix Roy

209
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French Translations

Research Summaries - French Translations Comptes Rendus de Recherche

Guy Beauchamp, Emile Bouchard, Hubert Brochard, Hélène Champoux, Josée Daigneault, Luc DesCôteaux, André Desrochers, Denis Du Tremblay, Louise Vinet

210-257
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Posters

The Effect of Non-nutritional Factors on Milk Urea Nitrogen Levels in Holstein Dairy Cows

Pipat Arunvipas, John VanLeeuwen, Ian Dohoo, Greg Keefe

258-259
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A Population Approach to Assess Antimicrobial Resistance in Commensal Coliforms of Feedlot Cattle

W. B. Epperson, R. H. Pritchard, C. E. Gates

259
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An Analysis of the Economic Impact of Neospora caninum in Ontario Dairy Cattle

J. Hobson, T. Duffield, D. Kelton, A. Peregrine, S. Hietala, K. Lissemore, B. McEwen, K. Leslie, G. Cramer

260
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Avoiding Disasters with Freestall Design

Nigel B. Cook, Ken Nordlund

261
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Using an Individual Cow Somatic Cell Count Diagnostic Algorithm to Investigate Herd Milk Quality Problems

Nigel B. Cook, Tom B. Bennett, Kathy M. Emery, Ken Nordlund

261-262
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Effect of Left Displacement of Abomasum Corrected by Toggle Pin Suture on Lactation, Reproduction and Health of Holstein Dairy Cows

E. A. Raizman, J. E. P. Santos

262
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Impact of Feeding Complexed Minerals on Postpartum Ovarian Activity in Dairy and Beef Cows

Mike T. Socha, Dana J. Tomlinson, Connie K. Swenson, Christof J. Rapp, A. Bruce Johnson, Laverne M. Schugel

263
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Factors Associated with Milk Revenue, Feed Costs and Return Over Feed Costs in Ontario Dairy Herds

K. Lissemore, T. Duffield, D. Kelton, H. Aitken

264
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Variance in Response to Vaccination of Dairy Cows with Recombinant Arcanobacterium pyogenes pyolysin, by Breed

S. Peder Cuneo, Dusti J. Pruna, Stephen J. Billington, J. Glenn Songer, B. Helen Jost

265
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Impact of Two Coliform Mastitis Vaccination Schedules on Milk Yield, Dry Matter Feed Intake and Intramammary Infections of Holstein Dairy Cattle

Christina S. Petersson, Ken E. Leslie, David F. Kelton, Bonnie A. Mallard

266
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Identifying Fetal Bovine Viral Diarrhea Virus Infection from Amniotic and Allantoic Fluid

Lucy Tan, Hana Van Campen, Robert J. Callan

267
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Development and Validation of a Pruritic Index to Assess the Impact of Chorioptic Mange Infestation in Dairy Cows

Kathleen Day, Ken Leslie, Todd Duffield, Jocelyn Jansen, William Sears, Ian Dohoo, Javier Sanchez

268
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Efficacy of Intramammary Tilmicosin at Drying-off, and Other Risk Factors, for Prevention of New Intramammary Infections during the Dry Period

R. T. Dingwell, T. F. Duffield, E. Leslie, G. P. Keefe, L. DesCôteaux, D. F. Kelton, K. D. Lissemore, Y. H. Schukken

269
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Assessing the Associations among Facility Design and Management Practices and Antimicrobial Drug Use in Ontario Free-Stall Dairy Herds

D. Léger, D. Kelton, K. Lissemore, R. Reid-Smith, S. W. Martin, N. Anderson

270
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Hyperkaluria as a Risk Factor for Periparturient Paresis in Dairy Cows Case Study of a Herd without a Hypocalcemia Prevention Program

R. Eicher, M. Settler, P. Tschudi

271
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