2010 Annual Meeting Abstracts
American Dairy Science Association®
Poultry Science Association
Asociación Mexicana de Producción Animal
Canadian Society of Animal Science
Western Section American Society of Animal Science
American Society of Animal Science

TABLE OF CONTENTS

Complete Abstract Book

Sunday, July 11, 2010
Symposia and Oral Sessions

Late-Breaking Original Research (Abstracts LB1–LB8)...Page i
Triennial Growth Symposium: Dietary Regulation of Growth and Development (Abstracts 1–7)...Page 1
ASAS Western Section Graduate Paper Competition (Abstracts 8–31)...Page 4
Symposium: National Extension Workshop: The Impact of Major Food Policy Shifts on the US Food Supply and its Producers: Animal Welfare Issues (Abstracts 32–36)...Page 12

Monday, July 12, 2010
Poster Presentations

Animal Behavior and Well-Being: Livestock (Abstracts M1–M23)...Page 14
Animal Health: Inflammation, Infection, and Stress (Abstracts M24–M56)...Page 22
Animal Health-Johne’s Disease (Abstracts JDIP): Johne’s Disease (Abstracts M57–M71)...Page 32
Breeding and Genetics: Beef Cattle (Abstracts M72–M92)...Page 37
Food Safety 1 (Abstracts M93–M102)...Page 44
Forages and Pastures: Dairy Forages and Forage Quality (Abstracts M103–M117)...Page 48
Forages and Pastures: Grazing and Forage Management (Abstracts M118–M131)...Page 54
Immunology and Pathology: Poultry Immunology and Pathology (Abstracts M132–M141)...Page 59
Lactation Biology 1 (Abstracts M142–M149)...Page 62
Meat Science and Muscle Biology: Beef Quality (Abstracts M150–M172)...Page 65
Graduate Student Poster Competition: National ADSA Dairy Foods Poster (Abstracts M173–M190)...Page 73
Graduate Student Poster Competition: National ADSA Production MS Poster (Abstracts M191–M195)...Page 79
Graduate Student Poster Competition: National ADSA Production PhD Poster (Abstracts M196–M203)...Page 81
Nonruminant Nutrition: Amino Acids (Abstracts M204–M237)...Page 84
Nonruminant Nutrition: Feed Ingredients (Abstracts M238–M276)...Page 94
Physiology and Endocrinology: Nutritional Effects on Reproduction and Development (Abstracts M277–M283)...Page 106
Physiology and Endocrinology: Pregnancy (Abstracts M284–M286)...Page 109
Physiology and Endocrinology: Reproductive Endocrinology (Abstracts M287–M298)...Page 111
Physiology and Endocrinology: Reproductive Management (Abstracts M299–M303)...Page 115
Production, Management and the Environment: Microbiology (Abstracts M304–M307)...Page 117
Production, Management and the Environment: Poultry (Abstracts M308–M324)...Page 119
Production, Management and the Environment: Small Ruminant (Abstracts M325–M331)...Page 124
Production, Management and the Environment: Swine (Abstracts M332–M338)...Page 127
Ruminant Nutrition: Beef: Additives and Supplements (Abstracts M339–M375)...Page 130
Ruminant Nutrition: Dairy: Forages, Fiber, Grazing (Abstracts M376–M430)...Page 142
Ruminant Nutrition: Methods, Models, Etc. (Abstracts M431–M452)...Page 160
Small Ruminant: Sheep Production 1 (Abstracts M453–M474)...Page 167

Monday, July 12, 2010
Symposia and Oral Presentations

Graduate Student Paper Competition: ADSA Southern Section (Abstracts 37–39)...Page 174
Graduate Student Paper Competition: ADSA-ASAS Northeast Section (Abstracts 40–48)...Page 175
Alpharma Beef Cattle Nutrition Symposium: “Parameterizing” Health and Performance Expectations of Feedlot Cattle (Abstracts 49–51)...Page 178
Animal Behavior and Well-Being: Animal Welfare Assurance: Science and Application (Abstracts 52–54)...Page 179
Animal Health-Johne’s Disease (Abstracts JDIP): Basic Biology/Immunology/Vaccine Development (Abstracts 55–65)...Page 180
Breeding and Genetics: Feed Intake and Utilization (Abstracts 66–74)...Page 184
ASAS-EAAP Global Issues Symposium: Contemporary and Emerging Issues and International Animal Agriculture Joint Symposium: Global Livestock Production to 2050: Challenges and Opportunities (Abstracts 75–77)...Page 187
Extension Education 1 (Abstracts 78–87)...Page 188
Food Safety Symposium: Potential Impact of Reduced Antibiotic Use and the Roles of Prebiotics, Probiotics, and Other Alternatives in Antibiotic-Free Broiler Production (Abstracts 88–90)...Page 191
Forages and Pastures: Grazing and Forage Management (Abstracts 92–101)...Page 193
Graduate Student Symposium: Transitions: Preparing for Your Future (Abstracts 102–104)...Page 197
Growth and Development: Regulatory Mechanisms in Growth and Development (Abstracts 105–116)...Page 198
Horse Species 1 (Abstracts 117–126)...Page 202
National ADSA Dairy Foods Oral: Dairy Foods Oral Student Competition (Abstracts 127–136)...Page 206
Nonruminant Nutrition: Amino Acids 1 (Abstracts 137–145)...Page 209
Nonruminant Nutrition: Dietary Fat (Abstracts 146–156)...Page 212
Nonruminant Nutrition Symposium: Nutrigenomics (Abstracts 157–160)...Page 216
Physiology and Endocrinology: Dairy Cow Synchronization and Fertility (Abstracts 161–172)...Page 218
Production, Management and the Environment: Poultry 1 (Abstracts 173–184)...Page 222
Production, Management and the Environment: Poultry 2 (Abstracts 185–196)...Page 226
Ruminant Nutrition: Beef: By-Product Feeds (Abstracts 197–208)...Page 230
Ruminant Nutrition: Dairy: Protein and Fat (Abstracts 209–220)...Page 234
ADSA-SAD Undergraduate Competition: Dairy Foods (Abstracts 221–226)...Page 238
Teaching/Undergraduate and Graduate Education: Graduate and Undergraduate Teaching 1 (Abstracts 227–230)...Page 240
ADSA Southern Section Symposium: Dairy Cattle Grazing in the Southern USA (Abstracts 231–235)...Page 242
ADSA-SAD Undergraduate Competition: Dairy Production (Abstracts 236–242)...Page 244
ADSA-SAD Undergraduate Competition:Undergraduate Original Research (Abstracts 243–252)...Page 246
Animal Behavior and Well-Being: Poultry 1: Ducks, Layers, and Turkeys (Abstracts 253–262)...Page 249
Animal Health: Immunity, Probiotics and Health Status (Abstracts 263–274)...Page 253
Animal Health-Johne’s Disease (Abstracts JDIP): Epidemiology and Transmission (Abstracts 275–286)...Page 257
Breeding & Genetics and Physiology & Endocrinology Symposium: Bridging the Gap Between Physiology and Genomics (Abstracts 287–290)...Page 261
Companion Animals Symposium: Microbes and Health (Abstracts 291–295)...Page 263
Dairy Foods Symposium: Microbiology and flavor of cheese: Impact of Lower Salt-In-Moisture Content of Low Fat and Reduced Sodium Cheeses (Abstracts 296–300)...Page 265
Dairy Foods: Processing (Abstracts 301–308)...Page 267
Growth and Development Symposium: Intestinal Development and Growth (Abstracts 309–314)...Page 270
Lactation Biology Symposium: Novel Mechanisms Regulating Milk Secretion and Mammary Involution (Abstracts 315–318)...Page 272
Meat Science and Muscle Biology: Fresh Meat Quality and Muscle Biology (Abstracts 319–330)...Page 274
Nonruminant Nutrition: Enzymes 1 (Abstracts 331–341)...Page 278
Nonruminant Nutrition: Health 1 (Abstracts 342–353)...Page 282
Nonruminant Nutrition Symposium: Rethinking Equine Nutrition (Abstracts 354–357)...Page 286
Physiology and Endocrinology: Poultry Physiology (Abstracts 358–370)...Page 288
Processing and Products (Abstracts 371–377)...Page 292
Ruminant Nutrition: Beef: Additives (Abstracts 378–389)...Page 295
Ruminant Nutrition: Dairy: Calves (Abstracts 390–401)...Page 299
Small Ruminant: Sheep and Goat Production 1 (Abstracts 402–408)...Page 303

Tuesday, July 13, 2010
Poster Presentations

Animal Behavior and Well-Being: Swine and Poultry (Abstracts T1–T13)...Page 306
Animal Health: Viruses, Infections, and Immunity (Abstracts T14–T23)...Page 311
Beef Species (Abstracts T24–T35)...Page 315
Breeding and Genetics: Poultry and Small Ruminants (Abstracts T36–T53)...Page 319
Companion Animals: Companion Animal Biology (Abstracts T54–T65)...Page 324
Dairy Foods: Cheese (Abstracts T66–T82)...Page 328
Dairy Foods: Chemistry (Abstracts T83–T89)...Page 333
Dairy Foods: Foods and Products (Abstracts T90–T106)...Page 335
Forages and Pastures: Forage Quality (Abstracts T107–T134)...Page 340
Growth and Development 1 (Abstracts T135–T152)...Page 350
Immunology and Pathology (Abstracts T153–T163)...Page 356
Meat Science and Muscle Biology: Fresh Meat Quality of Ruminants, Nonruminants and Poultry (Abstracts T164–T186)...Page 360
Nonruminant Nutrition: DDGS (Abstracts T187–T195)...Page 367
Nonruminant Nutrition: Energy (Abstracts T196–T202)...Page 370
Nonruminant Nutrition: Enzymes (Abstracts T203–T233)...Page 373
Nonruminant Nutrition: Fat (Abstracts T234–T237)...Page 382
Nonruminant Nutrition: Feed Additive (Abstracts T238–T254)...Page 384
Physiology and Endocrinology: Adipose and Leptin (Abstracts T255–T263)...Page 389
Physiology and Endocrinology: Hormonal Regulation of the Estrous Cycle in Beef Cattle (Abstracts T264–T274)...Page 392
Physiology and Endocrinology: Male Reproduction, Gamete Cryopreservation and Embryos (Abstracts T275–T288)...Page 396
Physiology and Endocrinology: Nutritional Physiology (Abstracts T289–T300)...Page 401
Processing and Products (Abstracts T301)...Page 405
Production, Management and the Environment: Dairy (Abstracts T302–T336)...Page 406
Ruminant Nutrition: Calves and Heifers (Abstracts T337–T360)...Page 417
Ruminant Nutrition: Dairy: Rumen Metabolism (Abstracts T361–T405)...Page 425
Ruminant Nutrition: Proteins and Fats (Abstracts T406–T449)...Page 439
Small Ruminant: Goat Production (Abstracts T450–T471)...Page 453
Teaching/Undergraduate and Graduate Education: Teaching (Abstracts T472–T475)...Page 460

Tuesday, July 13, 2010
Symposia and Oral Presentations

Animal Behavior and Well-Being: Sow Housing, Management, and Stress (Abstracts 409–421)...Page 461
Animal Health Symposium: Accounting for Diseased Animals in Research Trials (Abstracts Outliers, Treatments, Interactions)/ Disease Induction by Treatment? (Abstracts 422–424)...Page 466
ARPAS-Ruminant Nutrition Joint Symposium:Nutrition Models–Where Are We Going in the Next Decade? (Abstracts 425–429)...Page 467
Breeding and Genetics: Crossbreeding (Abstracts 430–438)...Page 469
Food Safety: Poultry Aspects (Abstracts 439–451)...Page 472
Forages and Pastures: Harvested Forages and Forage Quality (Abstracts 452–462)...Page 476
Immunology and Pathology Symposium: Immunity, Nutrition, Genomics, and Gut Microbiota (Abstracts 463–466)...Page 480
Lactation Biology 1 (Abstracts 467–476)...Page 481
Meat Science and Muscle Biology: How Does Pre- and Postnatal Muscle Development Affect Meat Composition, Quality and Value? (Abstracts 477–480)...Page 484
Graduate Student Paper Competition: National ADSA Production MS Oral (Abstracts 481–488)...Page 486
Nonruminant Nutrition: Amino Acids 2 (Abstracts 489–499)...Page 489
Nonruminant Nutrition: Feed Ingredients (Abstracts 500–511)...Page 493
Nonruminant Nutrition: Mineral Nutrition (Abstracts 512–522)...Page 497
Physiology and Endocrinology: Animal Physiology (Abstracts 523–530)...Page 501
Physiology and Endocrinology: Sperm-Oviduct Interactions in Livestock and Poultry (Abstracts 531–537)...Page 504
Production, Management and the Environment: Environment 1 (Abstracts 538–547)...Page 507
Ruminant Nutrition: Beef: Vitamins and Minerals (Abstracts 548–559)...Page 510
Ruminant Nutrition: Dairy: Forages and Heifers (Abstracts 560–571)...Page 514
Small Ruminant Symposium: Going, going, gone! How Curtailment of Livestock Grazing on Federal Lands Could Alter the US Sheep Industry (Abstracts 572–577)...Page 518
Teaching/Undergraduate and Graduate Education Symposium: Surviving Promotion and Tenure with a Teaching Appointment (Abstracts 578–580)...Page 520
Animal Behavior and Well-Being: Poultry 2: Broilers (Abstracts 581–588)...Page 521
Animal Health: Management, Disease, and Performance (Abstracts 589–601)...Page 524
ASAS-ADSA Cell Biology Symposium: Receptors and Signaling (Abstracts 602–605)...Page 529
Bioethics Symposium: Should Animal Welfare be Law or Market Driven? (Abstracts 606–611)...Page 530
Breeding and Genetics: Whole Genome Selection (Abstracts 612–623)...Page 532
Dairy Foods Symposium: Towards a Mechanistic Understanding of Probiotic Function in Man and Animals (Abstracts 624–629)...Page 536
Forages and Pastures: Environmental Impact of Forage-Based Livestock Production Systems (Abstracts 630–634)...Page 538
Growth and Development: Early Development and Fetal Programming (Abstracts 635–647)...Page 540
Immunology and Pathology: Poultry Immunology and Diseases (Abstracts 648–658)...Page 544
Graduate Student Paper Competition: National ADSA Production PhD Oral (Abstracts 659–666)...Page 548
Nonruminant Nutrition: DDGS (Abstracts 667–678)...Page 551
Nonruminant Nutrition: Energy and Dietary Fat (Abstracts 679–690)...Page 555
Nonruminant Nutrition Symposium: Models for Disease × Nutrition Evaluation and the Impact of Nutrition on Health, Disease, and/or Recovery (Abstracts 691–694)...Page 559
Nonruminant Nutrition: Vitamins and Management (Abstracts 695–703)...Page 561
Physiology and Endocrinology: Neuroendocrinology and Hormone Receptors (Abstracts 704–714)...Page 564
Production, Management and the Environment: Dairy 1 (Abstracts 715–726)...Page 567
Ruminant Nutrition: Beef: Proteins and Carbohydrates (Abstracts 727–738)...Page 571
Ruminant Nutrition: Dairy: Rumen Metabolism (Abstracts 739–750)...Page 575
Small Ruminant: Sheep and Goat Production 2 (Abstracts 751–758)...Page 579
Swine Species (Abstracts 759–765)...Page 582
ADSA Production Division Symposium: Dairy Products and Human Health: The Facts (Abstracts 766)...Page 585

Wednesday, July 14, 2010
Poster Presentations

Animal Health: Probiotics and Diet (Abstracts W1–W22)...Page 586
Breeding and Genetics: Dairy Cattle (Abstracts W23–W42)...Page 893
Dairy Foods: Microbiology (Abstracts W43–W67)...Page 599
Dairy Foods: Processing (Abstracts W68–W77)...Page 606
Dairy Foods: Protein (Abstracts W78–W81)...Page 609
Extension Education (Abstracts W82–W97)...Page 610
Food Safety 2 (Abstracts W98–W106)...Page 615
Forages and Pastures: Harvested Forages (Abstracts W107–W140)...Page 618
Growth and Development 2 (Abstracts W141–W169)...Page 629
Horse Species (Abstracts W170–W183)...Page 638
International Animal Agriculture 1 (Abstracts W184–W193)...Page 643
Lactation Biology 2 (Abstracts W194–W201)...Page 647
Nonruminant Nutrition: Gastrointestinal Physiology (Abstracts W202–W204)...Page 650
Nonruminant Nutrition: Health (Abstracts W205–W218)...Page 651
Nonruminant Nutrition: Management (Abstracts W219–W223)...Page 656
Nonruminant Nutrition: Mineral (Abstracts W224–W263)...Page 658
Nonruminant Nutrition: Mineral and Sow Nutrition (Abstracts W264–W271)...Page 670
Physiology and Endocrinology: Endocrinology and Metabolism (Abstracts W272–W276)...Page 673
Physiology and Endocrinology: Hormonal Regulation of the Estrous Cycle in Dairy Cattle (Abstracts W277–W289)...Page 675
Physiology and Endocrinology: Integrative Physiology and Endocrinology (Abstracts W290–W296)...Page 679
Physiology and Endocrinology: Lactational Physiology (Abstracts W297–W299)...Page 682
Production, Management and the Environment: Beef (Abstracts W300–W315)...Page 683
Production, Management and the Environment: Environment (Abstracts W316–W332)...Page 689
Production, Management and the Environment: Management (Abstracts W333–W335)...Page 695
Ruminant Nutrition: Beef 1 (Abstracts W336–W377)...Page 696
Ruminant Nutrition: Beef: Feedlot (Abstracts W378–W389)...Page 709
Ruminant Nutrition: Dairy 1 (Abstracts W390–W438)...Page 713
Small Ruminant: Sheep Production 2 (Abstracts W439–W453)...Page 728
Swine Species (Abstracts W454–W470)...Page 733

Wednesday, July 14, 2010
Symposia and Oral Presentations

Animal Health: Respiratory Health, Viruses (Abstracts 767–774)...Page 738
ASAS Western Section Symposium: Perinatal Programming of Offspring Quality 1: Basic Concepts and Experimental Evidence (Abstracts 775–777)...Page 741
Beef Species: Beef Management (Abstracts 778–783)...Page 742
Breeding and Genetics: Milk and Carcass Composition (Abstracts 784–789)...Page 744
Dairy Foods: Cheese (Abstracts 790–796)...Page 746
Dairy Foods: Chemistry-Protein (Abstracts 797–804)...Page 749
Extension Education 2 (Abstracts 805–812)...Page 752
Forages and Pastures: Dairy Forages (Abstracts 813–821)...Page 755
Growth and Development: Regulation of Adipogenesis and Adipose Tissue Development (Abstracts 822–828)...Page 758
Horse Species 2 (Abstracts 829–835)...Page 761
Immunology and Pathology (Abstracts 836–841)...Page 764
Physiology and Endocrinology: Hormonal Control of Estrus in Beef Cattle (Abstracts 842–849)...Page 766
Production, Management and the Environment: Beef 1 (Abstracts 850–857)...Page 769
Production, Management and the Environment: Dairy 2 (Abstracts 858–864)...Page 772
Production, Management and the Environment: Environment 2 (Abstracts 865–869)...Page 775
Ruminant Nutrition: Dairy: Fats and Carbohydrates (Abstracts 870–877)...Page 777
Ruminant Nutrition: Dairy: Minerals, Vitamins and Misc. (Abstracts 878–886)...Page 780
Sexed Semen Symposium: Applying Sexed Semen in Cattle (Abstracts 887–890)...Page 783
Small Ruminant: Sheep Production (Abstracts 891–895)...Page 785
Teaching/Undergraduate and Graduate Education Symposium : Beyond PowerPoint: Use of Technology in the Classroom (Abstracts 896–902)...Page 787
Animal Behavior and Well-Being: Dairy, Sheep, and Beef (Abstracts 903–913)...Page 789
ASAS Western Section Symposium: Perinatal Programming of Offspring Quality 2: Evidence for impacts of maternal nutrition on livestock production (Abstracts 914–917)...Page 793
Beef Species Symposium: Upcoming Environmental Policies and Their Effects on Beef Production (Abstracts 918–920)...Page 795
Breeding and Genetics: Functional Traits and Fitness (Abstracts 921–932)...Page 796
Companion Animals Symposium: Comparative Enrichment : Implications for Health and Behavior (Abstracts 933–939)...Page 800
CSAS Symposium: Issues in North American livestock transport (Abstracts 940–944)...Page 802
Dairy Foods: Foods and Products (Abstracts 945–950)...Page 804
Dairy Foods: Microbiology (Abstracts 951–957)...Page 806
Lactation Biology 2 (Abstracts 958–965)...Page 808
Meat Science and Muscle Biology Symposium: Impact of Pre- and Post-Slaughter Handling on Meat Quality (Abstracts 966–969)...Page 811
Nonruminant Nutrition: Feed Additives (Abstracts 970–979)...Page 813
Nonruminant Nutrition: Health 2 (Abstracts 980–988)...Page 816
Physiology and Endocrinology: Sperm Fertility, Embryos and Development (Abstracts 989–999)...Page 819
Production, Management and the Environment: Beef 2 (Abstracts 1000–1011)...Page 823
Production, Management and the Environment: General (Abstracts 1012–1021)...Page 827
PSA Emerging Issues Symposium: Social Sustainability of Egg Production (Abstracts 1022–1028)...Page 831
Ruminant Nutrition: Beef 2 (Abstracts 1029–1039)...Page 834
Ruminant Nutrition: Beef: Forages and Grazing (Abstracts 1040–1050)...Page 838
Ruminant Nutrition: Dairy 2 (Abstracts 1051–1062)...Page 842
Swine Species Symposium: Optimizing Swine Production for Lactating Sows and Young Pigs (Abstracts 1063–1066)...Page 846
Teaching/Undergraduate and Graduate Education: Graduate and Undergraduate Teaching 2 (Abstracts 1067–1072)...Page 848

Thursday, July 15, 2010
Symposia and Oral Presentations

Animal Health: Probiotics, Performance and Antioxidants (Abstracts 1073–1084)...Page 850
Food Safety: General Aspects (Abstracts 1085–1094)...Page 854
Horse Species Symposium: Pathogenic and Reproductive Dysfunction in Horses (Abstracts 1095–1098)...Page 857
International Animal Agriculture 1 (Abstracts 1099–1103)...Page 859
Nonruminant Nutrition: Enzymes 2 (Abstracts 1104–1114)...Page 861
Nonruminant Nutrition Symposium: Nutrient and Non-Nutrient Sensing and Signaling in the Gastrointestinal Tract (Abstracts 1115–1120)...Page 865
Physiology and Endocrinology: Feed Intake, Metabolism and Maternal Nutrition (Abstracts 1121–1132)...Page 867
Ruminant Nutrition: By-Products and Supplements (Abstracts 1133–1143)...Page 871
Ruminant Nutrition Symposium: Acidosis: New Insights Into the Persistent Problem (Abstracts 1144–1147)...Page 875

Author Index...Page 877
Key Word Index...Page 919