J Anim. Sci. Vol. 81, Suppl. 1
J. Dairy Sci. Vol. 86, Suppl. 1

Complete Abstract Book

2003 Joint Meeting Author Index

SATURDAY, JUNE 21

Triennial Reproduction Symposium Poster Session...1

SUNDAY, JUNE 22

Triennial Reproduction Symposium...4

MONDAY, JUNE 23

Breeding & Genetics Symposium: Molecular genetics: Lessons from past/new directions...5

Food Safety Symposium: Food safety for animal agriculture: What producers need to know...6

Growth & Development Symposium: Alternative aspects of adipocyte function...7

ADSA Dairy Foods Graduate Student Paper Competition and Dairy Foods...8

ADSA/ASAS Northeast Graduate Student Paper Competition...10

WSASAS Graduate Student Paper Competition...12

Animal Health: Immunity and health...14

International Animal Agriculture...15

Nonruminant Nutrition: Sow nutrition...16

Production, Management, & the Environment...18

Ruminant Nutrition: Dairy calves and replacement heifers...21

Ruminant Nutrition: Growing cattle...23

Teaching/Undergraduate & Graduate Education...25

Animal Health Symposium: Laminitis in dairy cattle...27

Food Safety Symposium: Emergence of antimicrobial resistance and implications to animal agriculture...28

International Animal Agriculture Symposium: Sustainable animal agriculture, national and international prospective...30

ADSA Dairy Production Graduate Student Paper Competition & Southern Division Paper Competition...31

WSASAS Graduate Student Paper Competition...34

Breeding & Genetics: Dairy cattle breeding for production traits...37

Dairy Foods: Processed cheese, milk powder, and microbiology...39

Dairy Foods: Natural cheese and butter...42

Forages & Pastures: Silages, forage composition...44

Nonruminant Nutrition: Diet and health...47

Physiology: Estrous synchronization...50

Production, Management, & the Environment...53

Ruminant Nutrition: Grazing - rumen metabolism - protein...57

Ruminant Nutrition: Dairy feedstuffs...60

TUESDAY, JUNE 24

Growth & Development Symposium: Somatotropic axis function in health and disease...65

Physiology Symposium: The role of the AI sire in maintaining reproductive rates of holstein cows...66

Breeding & Genetics: Swine, sheep, goat and dog breeding...67

Companion Animals...69

Dairy Foods: Goat cheeses and international milk sources...71

Horse: Equine production & management...72

Meat Science & Muscle Biology: Muscle proteinases and meat quality...73

Nonruminant Nutrition: Feed ingredients...75

Production, Management, and the Environment...76

Ruminant Nutrition: Minerals and vitamins...79

Dairy Foods Symposium: Hispanic-Style Cheeses...80

Dairy Foods Symposium: Listeria monocytogenes: a model pathogen for farm-to-table intervention...82

Horse Symposium: Nutrient management...83

Southern Branch ADSA Symposium: How can we best work together to serve tomorrow´┐Żs dairy industry?...84

Animal Health: Diseases and mammary health...84

Breeding & Genetics: Beef cattle breeding...86

Companion Animals...89

Forages & Pastures: Grasslands, forage supplementation...91

Growth & Development: Somatotropic axis and adipose development...94

Nonruminant Nutrition: Minerals and vitamins...97

Physiology: Nutrition-reproduction, stress, and growth...100

Ruminant Nutrition: Nutritional management & transition...104

Ruminant Nutrition: Feedlot...107

WEDNESDAY, JUNE 25

Dairy Foods Symposium: Dairy foods research success stories...111

Beef Species: Beef cattle performance...111

Breeding & Genetics: Statistical methods in animal breeding and genetics...113

Extension Education: Management and profitability...114

Food Safety: A look at antimicrobial resistance in dairy and swine...116

Lactation Biology...117

Physiology: Gamete physiology...118

Production, Management, & the Environment...120

Ruminant Nutrition: Beef cows and heifers...121

Ruminant Nutrition: Feed intake...123

Sheep: Sheep production and management...123

Animal Behavior & Well Being Symposium: Alternative housing for livestock...124

Forages & Pastures Symposium: Forage strategies for arid climates...125

Goat Species Symposium: Assisted reproduction in goats...126

Production, Management, & the Environment Symposium: Impact of animal feeding operations on the environment...127

Breeding & Genetics: Dairy cattle breeding for nonproduction traits...129

Food Safety: On farm food safety: Assessment of costs, tools and management...132

Growth & Development: Intestinal development - colostrum symposium...134

Meat Science & Muscle Biology: Genetics and management of meat quality...137

Nonruminant Nutrition: Energy and amino acids...139

Physiology: Uterus, gamete, embryo, and growth...142

Ruminant Nutrition: Fats and fatty acids...145

Ruminant Nutrition: Additives, enzymes and feedstuff analysis...148

THURSDAY, JUNE 26

Contemporary Issues Symposium: Designing animal experiments for power...152

Lactation Biology Symposium: Altering the lactation cycle in dairy cows...153

Nonruminant Nutrition Symposium: Energy density of pig diets...155

Animal Behavior & Well Being: Production challenges...155

Animal Behavior & Well Being: Housing environments...157

Breeding & Genetics: Molecular genetics and analyses of microarray data...159

Extension Education: Extension education and evaluation programs...162

Growth & Development...165

Production, Management, & the Environment...166

Ruminant Nutrition: Metabolism - modeling...170

ADSA Student Affiliate Division

Original Research Independent Study Undergraduate Paper Presentations...173

Dairy Production Undergraduate Paper Presentations...174

Dairy Foods Undergraduate Paper Presentations...176

POSTERS, MONDAY, JUNE 23

Physiology: Control of the estrous cycle and pregnancy...178

Triennial Reproduction Symposium...186

Lactation Biology...189

Animal Health...191

Breeding & Genetics...195

Swine: Impact of Weight and Sex on Meat Quality, Effect of Age Management on Biochemical Parameters, Disinfectant, Gilt Selection and Sow Longevity...198

Nonruminant Nutrition...202

Ruminant Nutrition...209

Production, Management, and the Environment...227

Forages & Pastures: Silages, forage supplementation...230

International Animal Agriculture...234

POSTERS, TUESDAY, JUNE 24

Physiology: Nutrition-reproduction, gametes and uterus...236

Lactation Biology...244

Animal Health...246

Breeding & Genetics...252

Nonruminant Nutrition...255

Companion Animals...259

Horse...262

Rabbit...264

Ruminant Nutrition: Dairy and Beef...265

Production, Management, and the Environment...280

Forages & Pastures...283

Dairy Foods: Cultured dairy products and dairy proteins...288

POSTERS, WEDNESDAY, JUNE 25

Physiology: Metabolism, growth, and stress...295

Lactation Biology...300

Growth & Development...303

Meat Science & Muscle Biology: Manipulation of Meat Quality...312

Breeding & Genetics...315

Nonruminant Nutrition...319

Animal Behavior & Well-Being: Social and Physical Environments...321

Goat Species: Forage/Browse Utilization...324

Physiology...326

Management...328

Sheep: Sheep Production & Management...330

Beef Species: Beef cattle performance and genetic relationships in the feedlot...332

Ruminant Nutrition: Dairy and Beef...332

Production, Management, and the Environment...348

Forages & Pastures: Grazing, cultivars, forage management...352

Extension Education...356

Dairy Foods: Microbiology and Cheese...360

Food Safety: Food safety; Methods, prevalence and control...368

Author Index...371