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Animal Industry Report

AS 658 (2012)

Animal Health

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Economic Impact of Porcine Reproductive and Respiratory Syndrome Virus on U.S. Pork Producers
Derald J. Holtkamp, James B. Kliebenstein, Jeffrey J. Zimmerman, Eric Neumann, Hans Rotto, Tiffany K. Yoder, Chong Wang, Paul Yeske, Christine L. Mowrer, and Charles Haley (ASL R2671)

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A Review on the Impact of Mycoplasma hyopneumoniae Vaccination on Average Daily Gain in Swine
Amanda Elsbernd, Anna K. Johnson, Kenneth J. Stalder, Locke A. Karriker, Annette M. O'Connor, Tyson Dinslage, and Josh Bowden (ASL R2672)

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Swine Veterinary Internship Program: Enhancing the Value of the Veterinary Internship
Derald J. Holtkamp, Christine L. Mowrer, and Tiffany K. Yoder (ASL R2673)

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Replicon Particle Administration Prior to Challenge Reduces PRRSV Viremia
Mark Mogler, Ryan Lee Vander Veen, Kurt I. Kamrud, and D.L. Hank Harris (ASL R2674)

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Rapid Development of Efficacious Swine Vaccines for Pandemic H1N1
Ryan Lee Vander Veen, Mark Mogler, Kurt I. Kamrud, and D.L. Hank Harris (ASL R2675)

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Effect of Joint Sampling Technique on Bacterial Load in Synovial Fluid Samples of Swine in a Commercial Setting
Deanne N. Day, Allison M. Meiszberg, Locke A. Karriker, JoAnn M. Kinyon, Timothy S. Frana, and Joshua S. Ellingson (ASL R2677)

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Economic Analysis of PRRS Virus Elimination from a Herd
Derald J. Holtkamp, James B. Kliebenstein, Jeffrey J. Zimmerman, Eric Neumann, Hans Rotto, Tiffany Yoder, Chong Wang, Paul Yeske, Christine Mowrer, and Charles Haley (ASL R2678)

Animal Products

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The Feeding Value of Heat Damaged Soybeans in Cattle Diets
Garland R. Dahlke and Mary Drewnoski (ASL R2681)

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Grass-fed and Organic Beef: Production Costs and Breakeven Market Prices, 2008 and 2009
Denise Schwab, Margaret Smith, H. Joe Sellers, Jim Munsch, Laura Paine, and Terry Gompert (ASL R2682)

Beef

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The Feeding Value of Heat Damaged Soybeans in Cattle Diets
Garland R. Dahlke and Mary Drewnoski (ASL R2683)

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Grass-fed and Organic Beef: Production Costs and Breakeven Market Prices, 2008 and 2009
Denise Schwab, Margaret Smith, H. Joe Sellers, Jim Munsch, Laura Paine, and Terry Gompert (ASL R2684)

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2010–2011 Beef Forage Summary—Cutting Dates and Quality Results
Garland R. Dahlke, Byron Leu, Denise Schwab, H. Joe Sellers, Beth Doran, and Clint McDonald (ASL R2685)

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2010–2011 Beef Forage Summary
Garland R. Dahlke, Byron Leu, Denise Schwab, H. Joe Sellers, Beth Doran, and Clint McDonald (ASL R2686)

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Dry Distillers Grain as a Creep Feed for Calves
Garland R. Dahlke and Daryl R. Strohbehn (ASL R2687)

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Stocking System Effects on Soil and Forage Characteristics, and Performance of Fall-Calving Cows Grazing Cool-Season Grass Pastures (A Progress Report)
Margaret Dunn, James R. Russell, Daniel G. Morrical, Stephen K. Barnhart, and H. Joe Sellers (ASL R2691)

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Effects of Dietary Sulfur Source on Rumen pH and Hydrogen Sulfide Gas Concentration
Carmen Brasche, Mary Drewnoski, and Stephanie L. Hansen (ASL R2696)

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Effects of Stocking Density on Steer Performance and Carcass Characteristics in Bedded Hoop Barns
Mark S. Honeyman, Dallas L. Maxwell, and W. Darrell Busby (ASL R2697)

Companion Animal

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Independent Study 490A: Does Handling of Kittens Improve Over 5 Consecutive Days of Handling?
Stephanie Ball, Reid Den Herder, Holland Dougherty, Anna K. Johnson, and Mick McAuliffe (ASL R2698)

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Independent Study 490A: 5 vs. 10-d of Handling; Which One is Better?
Stephanie Ball, Reid Den Herder, Holland Dougherty, Anna K. Johnson, and Mick McAuliffe (ASL R2699)

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Independent Study 490A: Does Handling of Kittens Improve Over 10 Consecutive Days of Handling?
Stephanie Ball, Reid Den Herder, Holland Dougherty, Anna K. Johnson, and Mick McAuliffe (ASL R2700)

Dairy

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Modification of Digestive System Microbiome of Lactating Dairy Cows by Feeding Bovamine®: Effect on Ruminal Fermentation
Mohamed Osman, Judith Stabel, Ken Onda, Scot Down, Wanda Kreikemeier, Douglas Ware, and Donald C. Beitz (ASL R2701)

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Revised Alfalfa Fertilizer Recommendations for a Changing Environment Greatly Improves Profitability
Brian Lang, John E. Sawyer, Daniel Barker, and Ken Pecinovsky (ASL R2702)

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Tri-State Dairy Youth Expo Hones in on Dairy Judging Skills
Jennifer Bentley and Ron Lenth (ASL R2703)

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ISU Extension Dairy Team Newsletters Inform Dairy Industry
Jennifer Bentley and Larry Tranel (ASL R2704)

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Determining the Effectiveness of Microbial Protease on Production Variables in Lactating Holstein Cows
Ekin Sucu, Amir Nayeri, Maria Victoria Sanz-Fernandez, Nathan Upah, and Lance H. Baumgard (ASL R2706)

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Two Methods to Determine IgG Concentration in Calf Serum
Kimberly M. Morrill and Howard D. Tyler (ASL R2708)

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A Novel Method to Determine Colostrum IgG Concentration
Kimberly M. Morrill, Erin Conrad, and Howard D. Tyler (ASL R2709)

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Nation-Wide Evaluation of Colostrum Quality
Kimberly M. Morrill, Erin Conrad, and Howard D. Tyler (ASL R2711)

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Educating Dairy and Beef Producers on Environmental Issues and Regulatory Concerns for Smaller Farms
Angie Rieck-Hinz, Rachel Klein, Beth Doran, Shawn C. Shouse, Clint McDonald, Kris Kohl, Denise Schwab, Russel M. Euken, Jennifer A. Bentley, Christine Mondak, and Larry F. Tranel (ASL R2714)

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Making Successful Decisions on Robotic Milking Technology
Larry F. Tranel, Jennifer A. Bentley, and Kristen Schulte (ASL R2717)

Equine

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Equine Program Review
Peggy M. Auwerda and Nikki Ferwerda (ASL R2718)

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Evaluation of Mare Milk Composition / Quality during Lactation
Stephanie Wells, Nikki Ferwerda, and Leo L. Timms (ASL R2719)

Poultry

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Litter Use in an Aviary Laying Hen Housing System
Jessica D. Jenkins, Rebecca L. Parsons, Morgan Hayes, Hongwei Xin, and Suzanne T. Millman (ASL R2720)

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Gene Expression Differences in White Blood Cells after Escherichia coli Infection in Chickens
Erin Sandford, Megan Orr, Xianyao Li, Huaijun Zhou, timothy J. Johnson, Subhashinie Kariyawasam, Lisa K. Nolan, Peng Liu, and Susan J. Lamont (ASL R2721)

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Impacts of Salmonella Enteritidis Infection on Liver Transcriptome in Broilers
Derrick Coble, Erin Sandford, Tieming Ji, and Susan J. Lamont (ASL R2722)

Swine

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Survey of the Coarseness of Grind of Swine Feed in Iowa
Mat A. Vaughn and Kenneth J. Stalder (ASL R2723)

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Evaluation of Rhizopus oligosporus Yeast Supplementation on Growth Performance and Nutrient Digestibility in Nursery Pigs
Dana M. van Sambeek, Thomas E. Weber, Brian J. Kerr, Johannes van Leeuwen, and Nicholas K. Gabler (ASL R2724)

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Bitter Compounds Decrease Gastric Emptying and Influence Intestinal Nutrient Transport
Venkatesh Mani, James Hollis, and Nicholas K. Gabler (ASL R2725)

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The Influence of Small Versus Large Pen Design on Health and Lesion Scores of the Grow-finisher Pig
Leah Gesing, Anna K. Johnson, Kenneth J. Stalder, Matthew Ritter, Jim Moody, Tara Donovan, Eva Jablonski, Dave Johnson, and Angie Johnson (ASL R2727)

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The Influence of Changing Pen Design From a Small to Large Configuration on the Performance of the Grow-to-Finisher Pig
Leah Gesing, Anna K. Johnson, Kenneth J. Stalder, Matthew Ritter, Jim Moody, Tara Donovan, Eva Jablonski, Dave Johnson, and Angie Johnson (ASL R2728)

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Development of a Nursery Pen Image Capturing Device to Classify Approachability of Nursery Pigs
Shawna Weimer, Anna K. Johnson, Howard D. Tyler, Kenneth J. Stalder, Locke A. Karriker, and Thomas Fangman (ASL R2729)

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When Nursery Pigs are not Approaching a Human Observer What are They Doing?
Shawna Weimer, Anna K. Johnson, Howard D. Tyler, Kenneth J. Stalder, Locke A. Karriker, and Thomas Fangman (ASL R2730)

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Defining “Approachability” of Nursery Pigs can Result in Differing Conclusions
Shawna Weimer, Anna K. Johnson, Howard D. Tyler, Kenneth J. Stalder, Locke A. Karriker, and Thomas Fangman (ASL R2731)

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Location of Nursery Pigs in Relation to a Human Observer
Shawna Weimer, Anna K. Johnson, Howard D. Tyler, Kenneth J. Stalder, Locke A. Karriker, and Thomas Fangman (ASL R2732)

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Prolactin’s Role During Acute and Chronic Heat Stress in Growing Pigs
Maria Victoria Sanz Fernandez, Nathan Upah, Sarah Pearce, Amir Nayeri, Ekin Sucu, Nicholas K. Gabler, John F. Patience, and Lance H. Baumgard (ASL R2737)

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Gestational Thermal Environment Alters Postnatal Response to Heat Stress
Jay Johnson, Rebecca Boddicker, Maria Victoria Sanz Fernandez, Jason W. Ross, Lance H. Baumgard, and Joshua T. Selsby (ASL R2738)

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Heat Stress during Pig Oocyte In Vitro Maturation Impacts Embryonic Development and Gene Expression
Elane C. Wright, Cai-Xia Yang, Christopher K. Tuggle, and Jason W. Ross (ASL R2739)

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DND1 Expression and Function in the Porcine Ovary, Oocyte and Embryo
Cai-Xia Yang, Elane C. Wright, and Jason W. Ross (ASL R2740)

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Prenatal and Postnatal Dietary n-3 Fatty Acid Supplementation Alters Buffy Coat DNA Methylation Profile in Pigs
Rebecca Boddicker, James Koltes, Eric Fritz, Venkatesh Mani, James M. Reecy, Lance H. Baumgard, Nicholas K. Gabler, and Jason W. Ross (ASL R2741)

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Utility and Efficiency of Homologous Recombination for Introducing Targeted Modifications to the Pig Genome
Cai-Xia Yang, Delphine Gardan-Salmon, Joshua T. Selsby, and Jason W. Ross (ASL R2742)

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Effects of Heat Stress on Ovarian Physiology in Growing Pigs
Jackson Nteeba, Lance H. Baumgard, Jason W. Ross, and Aileen F. Keating (ASL R2743)

Teaching

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Experiential Learning Opportunities for Career Preparation of Animal Science Students
Curtis R. Youngs, M. Douglas Kenealy, Philip L. Spike, Bridget Driscoll, Michael S. Retallick, and Michael C. Gaul (ASL R2745)

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Exploration of MAP-Works® as a Tool to Facilitate Success of First-Year College of Agriculture and Life Sciences Students
Curtis R. Youngs, Jie Sun, Don Whalen, Virginia C. Arthur, and Mary Jo Gonzales (ASL R2746)

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Update from Animal Science Teaching Section
M. Douglas Kenealy (ASL R2747)

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Update from the Dairy Science Curriculum
M. Douglas Kenealy (ASL R2748)

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An Experimental Course: Livestock Production for Niche Markets
Peter J. Lammers and Mark S. Honeyman (ASL R2749)

Iowa State University Faculty and Staff Responsible for this Report

Editor: Kenneth J. Stalder
Staff Coordination: Julie Roberts
Graphic Design: Sherry Hoyer

Section Coordinators
Animal Health: James D. McKean
Animal Products: Steven M. Lonergan
Beef: Daniel D. Loy
Companion Animals: N. Matthew Ellinwood
Dairy: Leo L. Timms
Environmental: James R. Russell
Equine: Peggy A. Miller-Auwerda
Poultry: Hongwei Xin
Sheet and Goats: Daniel G. Morrical
Swine: John W. Mabry
Teaching: Jodi A. Sterle

Foreward

January 2012

It is with great pleasure that we at Iowa State University bring you this annual report of the research activities that relate to the animal agriculture industries. This report combines research reports from faculty associated with various departments on campus. We have attempted to bring you all of the research as it relates to the Beef, Dairy, Equine, Poultry, Sheep, Swine and companion animal industries in the state of Iowa. This research is conducted to support the viability of each of these industries in Iowa. The research reported here is supported by the Iowa Agriculture and Home Economics Experiment Station.

The funding climate for animal agriculture research has changed dramatically from past years. Due to the large budget cuts over the past several years all operating funds for research from appropriated funds has been eliminated. What you will see in this report is essentially research that is funded by external grants from industry or the federal government. To the credit of our scientists, they have been very successful in bringing funds to work on problems of importance to animal agriculture.

As you read through the research reports you will find a variety of research as it relates to the animal agriculture industries in Iowa. Some research relates to improving production efficiencies while other research relates to improving environmental quality, animal product food safety and animal behavior and well-being. These all are important aspects of keeping animal agriculture strong and viable and contributing to the economy and quality of life in Iowa. I hope that you read the research reports and feel free to contact the authors of any report if you need further information.

Sincerely,

Maynard Hogberg
Professor and Chair
Department of Animal Science