Table of Contents

ABSTRACTS
AMERICAN SOCIETY OF ANIMAL SCIENCE
AMERICAN DAIRY SCIENCE ASSOCIATION

J. Anim. Sci. Vol. 80, Suppl. 1
J. Dairy Sci. Vol. 85, Suppl. 1

SATURDAY, JULY 20

6th Joint EAAP/ASAS Workshop on Biology of Lactation in Farm Animals: Alternative Strategies in Dairy Cow Management...1

6th Joint EAAP/ASAS Workshop on Biology of Lactation in Farm Animals: Lactation Biology in the Post-Genomic Era...2

6th Joint EAAP/ASAS Workshop on Biology of Lactation in Farm Animals: Poster Session...4

MONDAY, JULY 22

Forages and Pastures: The J. W. Thomas Forage Symposium: A Discussion on Silage Fermentation Issues...10

Physiology: Improving Reproductive Efficiency with Hormone Treatments...11

Swine Species: Value-Added Pork Products for 21st Century Consumers...12

Graduate Paper Competition: CSAS Graduate Student Competition...13

Graduate Paper Competition: Dairy Foods...16

Graduate Paper Competition: ADSA Production Division and ADSA Southern Branch...19

Graduate Paper Competition: Northeast ASAS/ADSA Section...22

Animal Behavior and Well-Being: Influence of Environment on Animal Well-Being...25

Animal Health: Immunology and Management...28

Breeding and Genetics: Genetic Prediction and Selection in Cattle...32

Dairy Foods: Micro...35

Nonruminant Nutrition: Nutritional Values of Phytase and Other Enzymes...37

Nonruminant Nutrition: Antimicrobial Agents and Plant Extracts on Immunity, Health, and Performance...39

Production, Management, and the Environment: Dairy Management...41

Ruminant Nutrition: Feedlot...45

Breeding and Genetics: Applications of Random Regression Models in Animal Breeding...49

Dairy Foods: Whey Proteins: Structure, Production, Function, and Future...50

Extension Eduction and International Animal Agriculture: The Impact of Governmental Policies on North American Animal Agriculture...51

Milk Synthesis: Regulation of Mammary Gland Function by Growth Factors and Downstream Signaling Cascades...52

Nonruminant Nutrition: Phytase, What is New and What Needs to be Done?...54

Production, Management, and the Environment: Environmental Stress on Livestock and Economic Implications...55

Graduate Paper Competition: ADSA Production Division, ADSA Southern Branch, and Northeast ASAS/ADSA Section...56

Dairy Foods: Processing...59

Forages and Pastures: Grazing Systems and Fiber...61

Physiology: Endocrinology and Metabolism...64

Ruminant Nutrition: Growing Cattle and Byproducts...67

Ruminant Nutrition: Protein...71

Sheep Species...75

TUESDAY, JULY 23

Contemporary and Emerging Issues: Homeland Security and Animal Agriculture...77

Dairy Foods: Milk Protein Gelation and Their Mixtures with Polysaccharides...77

Growth and Development and Ruminant Nutrition: Heifer Growth and Mammary Gland Development...79

Nonruminant Nutrition: Are We Ready for Nutritional Genomics?... 81

Animal Behavior and Well-Being: Influence of Production Practices on Behavior and Well-Being...81

Animal Health: Mastitis and Management...84

Breeding and Genetics: Factors Affecting Fertility and Longevity...88

Dairy Foods: Cheese...90

Forages and Pastures: Silages and Forage Composition...93

Nonruminant Nutrition: Ractopamine and Somatotropin on Nutrient Metabolism and Pork Quality...96

Physiology: Estrus Synchronization I...97

Production, Management, and the Enviroment: Beef and Swine Management...100

Ruminant Nutrition: Feed Additives and Fiber...104

Ruminant Nutrition: Minerals...107

Swine Species...110

Alpharma Beef Cattle Nutrition: Factors Affecting Feed Intake in Beef Cattle ...112

Breeding and Genetics: Applications of Functional Genomics in Animal Breeding and Genetics...113

Dairy Foods: Lactic Acid Bacteria and Exopolysaccharides...116

Physiology: Basic Mechanisms Regulating Anovulatory States...117

ADSA Southern Branch Symposium: Potential for Dairying in the Southeast—Challenges and Opportunities...118

Dairy Foods: Chemistry...120

Extension Education...122

International Animal Agriculture...125

Meat Science and Muscle Biology: Meat Quality...127

Nonruminant Nutrition: Amino Acid and Protein Nutrition...130

Physiology: Estrus Synchronization II...133

Production, Management, and the Environment: Nutrient Management and Manure Composition...137

Ruminant Nutrition: Fat...140

WEDNESDAY, JULY 24

Contemporary and Emerging Issues: Critical Perspective of Animal Agriculture...143

Goat Species: Potent Solutions for Impotent Dewormers: Controlling Resistant Internal Parasites...144

Physiology: Developmental Endocrinology...145

Ruminant Nutrition: New Concepts and Developments in Forage and Feedstuff Analysis and Applications to Ruminant Nutrition...146

Breeding and Genetics: Applied Animal Breeding...147

Dairy Foods: Sensory...148

Food Safety: Foodborne Pathogens...150

Growth and Development...152

Horse Species: Equine Research and Overview of Mare Reproductive Loss Syndrome...155

Milk Protein & Enzymes...157

Nonruminant Nutrition: Nutrient Metabolism, Evaluation, and Modeling...158

Nonruminant Nutrition: Mineral and Vitamin Nutrition...161

Undergraduate and Graduate Education...164

Contemporary and Emerging Issues: Analytical Method Challenges for Measuring Nutrients and Anti-Nutrients in Plants...167

ARPAS-FASS Symposium: ARPAS-FASS Symposium on Animal Care Training and Certification for Research Facilities and Commercial On-Farm Assessment Programs...168

Food Safety: Interventions and Future Directions in Food Safety...169

Growth and Development: Skeletal Muscle Plasticity, Development, and Hypertrophy...169

Horse Species: Horses: Livestock versus Companion Animals - Implication for Animal Agriculture...170

Nonruminant Nutrition: An Update on Modeling Pig Growth...173

Sheep Species: Sheep Production in China; The Importance of Small Ruminants for Managing Vegetation...174

Milk Synthesis...175

Production, Management, and the Environment: Management and Decision-Making ...177

Ruminant Nutrition: Ruminal Fermentation...181

Ruminant Nutrition: Transition Cow...184

THURSDAY, JULY 25

Beef Species: Status and Application of Genetic Technologies in the Beef Industry...188

Animal Health: Transition Cow Health...189

Goat Species...192

Growth and Development: Somatropic Axis and Leptin in Cows...194

Nonruminant Nutrition: Young Pig Nutrition and Management...196

Physiology: Reproduction...200

Ruminant Nutrition: Silage and Intake...204

POSTERS

Extension Education...207

Growth and Development...208

Meat Science and Muscle Biology: Meat Quality...213

Nonruminant Nutrition: Nutrient Metabolism and Feed Evaluation or Processing...217

Production, Management, and the Environment: Livestock Management...226

Ruminant Nutrition: Byproducts, Growing Cattle, and Protein...231

Animal Health: Management and Immunology...246

Graduate Paper Competition: CSAS Graduate Student Competition...251

Dairy Foods: Cheese and Sensory...253

Food Safety...260

Physiology: Estrus Synchronization...262

Ruminant Nutrition: Feedlot, Transition Cow, and Silage...269

Swine Species...281

Dairy Foods: Chemistry...284

Goat Species...290

Horse Species...296

Milk Synthesis...297

Physiology: Reproduction...300

Production, Management, and the Environment: Dairy Management...304

Ruminant Nutrition: Fat and Intake...311

Breeding and Genetics: Quantitative Genetics...322

Dairy Foods: Micro...325

Forages and Pastures: Grasses and Legumes...331

Growth and Development: Dairy Calf and Heifer Growth...335

Milk Protein and Enzymes...339

Nonruminant Nutrition: Phytase, Other Enzymes, and Mineral Nutrition...343

Physiology: Endocrinology and Metabolism...349

Ruminant Nutrition: Feed Additives, Fiber, and Minerals...354

Animal Behavior and Well-Being...367

Animal Health: Mastitis...373

Animal Breeding and Genetics: Molecular Genetics...376

Dairy Foods: Processing...379

Forages and Pastures: Silages, Small Grains, and Fertilization...382

International Animal Agriculture...388

Nonruminant Nutrition: Antimicrobial Agents, Additives, and Fermentation Modulators...390

Ruminant Nutrition: Ruminal Fermentation...396

Sheep Species...405

Women and Minority Issues in Animal Agriculture...406

ADSA Student Affiliate Division Original Research/Independent Study...406

ADSA Student Affiliate Division Dairy Foods...408

ADSA Student Affiliate Division Dairy Production...409