Journal of Dairy Science, Volume 87, Supplement 1
Journal of Animal Science, Volume 82, Supplement 1
Poultry Science, Volume 83, Supplement 1

Complete Abstract Book

Table of Contents

ABSTRACTS
AMERICAN DAIRY SCIENCE ASSOCIATION
AMERICAN SOCIETY OF ANIMAL SCIENCE
POULTRY SCIENCE ASSOCIATION

Monday July 26, 2004

Poster Presentations

Breeding and Genetics. . .1
PSA-Genetics. . .7
PSA-Processing and Products. . .10
Meat Science and Muscle Biology. . .12
Nonruminant Nutrition: Weanling Pig - Vitamin & Mineral. . .19
Nonruminant Nutrition: Weanling Pig - Energy & Protein. . .22
Nonruminant Nutrition: Weanling Pigs - Additives. . .25
Forages and Pastures. . .28
Ruminant Nutrition I. . .39
Rabbit Species. . .56
Production, Management and the Environment: Systems, Economics, and Miscellaneous. . .56
Horse Species. . .60
Physiology and Endocrinology: Female Reproduction. . .62
PSA-Environment and Management. . .68
PSA-Extension/Instruction. . .76
Milk Protein and Enzymes: Dairy Foods. . .76

Symposia and Oral Sessions

PSA Ancillary Scientists Symposia: Agricultural Biosecurity: Emerging Issues in Homeland Security & Food Safety. . .78
Combined Animal, Dairy and Poultry Extension Workshop. . .79
Growth and Development: ASAS-Emerging Roles of Gut Peptides in the Regulation of Appetite and Metabolism. . .80
Antibiotics in Animal Feeds: Are There Viable Alternatives?. . .81
Animal Behavior & Well Being I. . .82
Breeding and Genetics: Genetics Methodology 1. . .84
Breeding and Genetics: Genetics of Dairy Health Traits. . .86
Dairy Foods: Chemistry. . .88
Forages and Pastures: Management of Tall Fescue Forage. . .90
National ADSA Foods Only (Graduate): ADSA Dairy Foods Graduate Paper Contest. . .92
Graduate Student Competition - National ADSA Production Only. . .93
Horse Species. . .96
Milk Protein and Enzymes. . .97
Nonruminant Nutrition: Finishing Pigs - Additives & Energy. . .98
Physiology and Endocrinology: Factors Affecting Embryonic and Fetal Mortality. . .100
PSA-Environment and Management-Enteric Bacteria. . .103
PSA-Nutrition: Amino Acids and Vitamin/Mineral Nutrition I. . .105
PSA-Pathology. . .108
PSA-Physiology: Poultry Digestion and Metabolism. . .110
PSA-Processing & Products: Meat Quality. . .112
Ruminant Nutrition: Beef - Energy and Nitrogen. . .114
Ruminant Nutrition: Dairy - Minerals. . .117
Breeding and Genetics: Genetics of Efficient Feed Utilization. . .119
Combined Animal, Dairy, and Poultry Extension Workshop. . .120
Dairy Foods: Perspectives on Raw Milk Cheeses. . .122
Extension Education: Applied Reproductive Management Symposium: Beef and Dairy Cattle Topics. . .123
PSA Air Emissions & Poultry Production. . .123
Food Safety in Animal Production. . .125
ADSA-ASAS Northeast Graduate Student Competition. . .127
Graduate Student Competition - National ADSA Production Only II. . .129
Southern Branch ADSA Graduate Student Paper Competition. . .131
Physiology of Lactation. . .131
Meat Science and Muscle Biology. . .134
Nonruminant Nutrition: Weanling Pig Nutrition and Health. . .137
Production, Management and the Environment: Health and Miscellaneous. . .140
PSA-Environment and Management-Breeder and Incubation. . .143
PSA Immunology. . .146
PSA-Nutrition: Feed Additives and Phytase. . .148
Poultry Reproductive Physiology. . .151
PSA-Processing & Products: Microbiology & Egg Quality. . .154
Ruminant Nutrition: Beef - Feedstuffs. . .158
Ruminant Nutrition: Dairy - Protein & Amino Acids. . .160

Tuesday, July 27, 2004

Poster Presentations

Contemporary and Emerging Issues. . .164
PSA - Nutrition 1. . .167
Nonruminant Nutrition: Grow/Finish - Energy & Protein. . .171
Nonruminant Nutrition: Grow/Finish - Minerals & Additives. . .175
Swine Species. . .178
Animal Health. . .178
PSA - Pathology. . .184
PSA - Immunology. . .185
Companion Animals. . .187
PSA - Physiology. . .188
Physiology and Endocrinology: Nutrition, Growth and Stress. . .193
ASAS - Growth and Development. . .199
Lactation Biology: Lactational Physiology. . .204
Ruminant Nutrition II. . .207
Sheep Species. . .224
Extension Education. . .228
Teaching/Undergraduate and Graduate Education: Teaching. . .229
Dairy Foods: Chemistry. . .230

Symposia and Oral Sessions

Bioethics: Symposium-Ethics and the Cost of Food: What is the Impact of Lessening Food Prices on Citizens, Producers, Animals and the Environment?. . .238
Lactation Biology: Symposia: Molecular Mechanisms Governing Mammary Development. . .239
Ruminant Nutrition: Science of Ruminant Nitrogen Metabolism and Its Application to Feeding Cows. . .240
Swine Species Symposium: Improving Sow Productivity: Recent Developments in Gilt and Lactation Management . . .241
Breeding and Genetics: Genetics Methodology 2. . .242
Companion Animals. . .244
Extension Education - Dairy Science. . .246
Forages and Pastures: Forages in Dairy Production. . .248
ASAS Growth and Development I. . .250
Nonruminant Nutrition: Minerals. . .252
Physiology and Endocrinology: Strategies for Appointment Breeding of Beef and Dairy Cattle. . .255
Production, Management and the Environment: Reproduction and Behavior. . .257
PSA - Environment and Management: Layer Management. . .260
PSA - Poultry Genetics. . .262
PSA-Nutrition: Alternate Ingredients and Gastrointestinal System. . .263
PSA-Nutrition: Amino Acids and Vitamin/Mineral Nutrition II. . .266
Ruminant Nutrition: Beef - Minerals & Vitamins. . .268
Ruminant Nutrition: Dairy - Lactation, Health & Gut Physiology. . .270
ALPHARMA Beef Cattle Symposium: Factors Affecting Feedlot Profitability. . .272
Companion Animal Symposium. . .273
Dairy Foods and Human Nutrition. . .273
Growth and Development: ADSA - Mammary Development - The Role of Progenitor Cells and Nutritional Modulation on Lactation. . .274
PSA World Poultry Science Lecture. . .276
Animal Behavior & Well Being II. . .276
Animal Health: Dairy Cattle Health - Transition Cows and Mastitis. . .279
Breeding and Genetics: Dairy Crossbreeding and Breeding Objectives. . .282
Dairy Foods: Cheese. . .285
Extension Education - Animal Science. . .288
Forages and Pastures: Harvesting and Grazing Management of Forages. . .290
Nonruminant Nutrition: Amino Acids. . .293
Physiology and Endocrinology: Nutritional Regulation of Reproduction. . .296
Production, Management and the Environment: Heat Stress and Environment. . .300
Ruminant Nutrition: Dairy - Additives, Vitamins & Models. . .303
Ruminant Nutrition: Dairy - Fats. . .307
Sheep Species. . .310

Wednesday, July 28, 2004

Poster Presentations

PSA - Nutrition II. . .313
Nonruminant Nutrition: Feedstuffs & Methodology. . .328
Nonruminant Nutrition: Sow & Gilt Nutrition. . .331
Ruminant Nutrition III. . .332
Production, Management and the Environment: Nutrition and Environment. . .347
Beef Species: Management and Beef Performance. . .349
Goat Species. . .353
Animal Behavior & Well Being. . .358
ADSA Growth and Development. . .363
Physiology and Endocrinology: Reproductive Technologies and Management. . .366
Production, Management and the Environment: Reproduction and Health Management. . .373
Breeding and Genetics II. . .376
Food Safety. . .380
Dairy Foods: Microbiology. . .382
International Animal Agriculture. . .387

Symposia and Oral Sessions

Contemporary and Emerging Issues: Current and Future Prospects for Animal Nutrition Management for Environmental Impact Reduction. . .389
Bioethics. . .390
Breeding and Genetics. . .390
Goat Species: Products. . .392
ADSA - Growth and Development. . .393
PSA - Environment and Management - Broiler Management. . .394
PSA-Nutrition: Feed Additives. . .395
PSA-Nutrition: Layer and Miscellaneous Nutrition. . .398
Ruminant Nutrition: Beef and Dairy Calves. . .400
Teaching/Undergraduate and Graduate Education. . .402
Contemporary and Emerging Issues: Current and Future Prospects for Animal Nutrition Management for Environmental Impact Reduction. . .402
Food Safety: Alternatives to Antibiotic Use. . .404
Women and Minority Issues in Animal Agriculture Symposium. . .405
Animal Health - Growth and Immunity. . .405
Beef Species: Enhancing Energetic Efficiency. . .408
Breeding and Genetics: Dairy Genetic Evaluation. . .411
Breeding and Genetics: Molecular Genetics, QTL Detection and Marker Assisted Selection. . .414
Dairy Foods: Microbiology. . .417
ASAS - Growth and Development II. . .419
Lactation Biology: Biology of Lactation. . .422
Nonruminant Nutrition: Sow Feeding. . .425
Production, Management and the Environment: Nutritional Management. . .427
PSA-Nutrition: Amino Acids. . .430
PSA-Nutrition: Vitamin/Minerals and Miscellaneous Nutrition. . .434
Ruminant Nutrition: Beef - Digestibility & Production. . .437
Ruminant Nutrition: Dairy - Transition Cows. . .439
Swine Species. . .442

Thursday, July 29, 2004

Symposia and Oral Sessions

Animal Health: Symposium: Integrative Aspects of Immunity, Nutrient Metabolism, and Production in Livestock. . .444
Extension Education: The Use of Electronic Media for Extension and Producer Education. . .445
Goat Species: Export Potential, Market Outlook, and Value-Added Processing. . .446
International Animal Agriculture: Animal Agriculture in Global Context. . .446
Animal Behavior & Well Being III. . .447
Breeding and Genetics: Beef Cattle. . .449
Breeding and Genetics: Swine. . .452
Nonruminant Nutrition: Feed Ingredients & Management. . .455
Physiology and Endocrinology: Stress and Inflammation: Effects on Animal Performance. . .458
Ruminant Nutrition: Dairy - Digestibility and Microbiology. . .462
Ruminant Nutrition: Dairy - Feedstuffs. . .464

ADSA Student Affiliate Division

Original Research/Independent Study Undergraduate Paper Presentations. . .469
Dairy Production Undergraduate Paper Presentations. . .470
Dairy Foods Undergraduate Paper Presentations. . .472

Author Index. . .475
Subject Index. . .493