Table of Contents

ABSTRACTS
AMERICAN DAIRY SCIENCE ASSOCIATION
AMERICAN SOCIETY OF ANIMAL SCIENCE

J. Anim. Sci. Vol. 86, E-Suppl. 2
J. Dairy Sci. Vol. 91, E-Suppl. 1

Complete Abstract Book

Monday, July 7, 2008
LATE-BREAKING RESEARCH SESSION

(Only available online - not included on abstract CD-ROM)

Late-Breaking Abstracts i (Abstracts LB1-LB8)


Tuesday, July 8, 2008
POSTER PRESENTATIONS

Animal Health: Mastitis 1 (Abstracts T1-T12)
Breeding and Genetics 6 (Abstracts T13-T37)
Dairy Foods: Cheese I 14 (Abstracts T38-T59)
Extension Education 21 (Abstracts T60-T70)
Food Safety 25 (Abstracts T71-T76)
Forages and Pastures I 27 (Abstracts T77-T98)
Graduate Student Competition: ADSA Production Division Poster Competition 34 (Abstracts T99-T103)
Meat Science and Muscle Biology 36 (Abstracts T104-T127)
Nonruminant Nutrition: Feed Additives 44 (Abstracts T128-T168)
Physiology and Endocrinology: Immune Function and Health 58 (Abstracts T169-T174)
Physiology and Endocrinology: Nutritional and Metabolic Effects on Growth, Reproduction and Lactation 60 (Abstracts T175-T185)
Physiology and Endocrinology: The Hypothalamic-Somatotrophic Axis 64 (Abstracts T186-T189)
Ruminant Nutrition: Carbohydrates - Dairy 66 (Abstracts T190-T201)
Ruminant Nutrition: Fats - Dairy 70 (Abstracts T202-T228)
Ruminant Nutrition: Methods, Models and Other 79 (Abstracts T229-T267,T295)
Small Ruminant: Goats 92 (Abstracts T268-T286)
Teaching/Undergraduate and Graduate Education: Teaching in the Animal Sciences 98 (Abstracts T287-T294)


SYMPOSIA AND ORAL SESSIONS

Animal Health I 101 (Abstracts 1-3)
Symposium: Beef Species: The Evolution of Beef Cattle Genetic Evaluation 103 (Abstracts 4-7)
Breeding and Genetics: Current Issues in Dairy Cattle Breeding 105 (Abstracts 8-18)
Dairy Foods: Dairy Food Chemistry and Microbiology 109 (Abstracts 19-27)
Symposium: ESS Program: Horse Genome Toolbox for Animal Science Applications 112 (Abstracts 28-31)
Extension Education: Symposium: Has the Land Grant College Left the Farm? 113 (Abstracts 32-36)
Symposium: Forages and Pastures: Fiber Fermentation: Influence of Supplemental Nonstructural Carbohydrates 115 (Abstracts 37-39)
Graduate Student Paper Competition: ADSA Dairy Foods 116 (Abstracts 40-49)
Graduate Student Paper Competition: ADSA Production Division 120 (Abstracts 50-57)
Graduate Student Paper Competition: ADSA Southern Branch 123 (Abstracts 58-60)
Symposium: Meat Science and Muscle Biology: Meat Quality: Regulation of Intramuscular Fat Deposition 124 (Abstracts 61-65)
Symposium: Nonruminant Nutrition: Mineral Absorption: What is Known? 126 (Abstracts 66-69)
Physiology and Endocrinology: Nutrition and Growth, Reproductive and Lactational Performance 128 (Abstracts 70-78)
Production, Management and the Environment: Mesuring and Evaluating Environmental Stress 131 (Abstracts 79-90)
Ruminant Nutrition: Forages 136 (Abstracts 91-98)
Ruminant Nutrition: Minerals and Vitamins 139 (Abstracts 99-109)
ADSA-SAD (Student Affiliate Division) Undergraduate Competition: Dairy Foods 143 (Abstracts 110-114)
Animal Health II 145 (Abstracts 115-117)
Graduate Student Paper Competition: ADSA-ASAS Northeast Section 146 (Abstracts 118-123)
ADSA-SAD (Student Affiliate Division) Undergraduate Competition: Dairy Production 149 (Abstracts 124-132)
Symposium: Dairy Foods: Advances in Low Fat Cheese Research 152 (Abstracts 133-141)
Symposium: ADSA Southern Section Symposium: Responding to Hot Topics in Dairy Management 155 (Abstracts 142-145)
Symposium: ALPHARMA Beef Cattle Nutrition and Beef Species Joint Symposium: Producing Quality Beef in a Bio-Based Economy 157 (Abstracts 146-151)
Animal Health III 159 (Abstracts 152-160)
Symposium: ASAS Cell Biology: The Role of MicroRNA on Cell Function 162 (Abstracts 161-163)
Symposium: Bioethics: Value of Bioethics Leadership for Food Animal Agriculture 163 (Abstracts 164-168)
Symposium: Breeding and Genetics: Training of Future Animal Breeders 165 (Abstracts 169-173)
Companion Animals: Comparative Animal Biology 167 (Abstracts 174-181)
Forages and Pastures I 170 (Abstracts 182-189)
Nonruminant Nutrition: Mineral 173 (Abstracts 190-199)
Nonruminant Nutrition: Protein and Amino Acids 177 (Abstracts 200-210)
Ruminant Nutrition: Growing Youngstock, Calves and Heifers 181 (Abstracts 211-221)
Symposium: Ruminant Nutrition, and Production, Management & Environment Joint Symposium: Designing Field Studies to Evaluate Nutrition Effects on Production, Reproduction and Health of Dairy Cows 185 (Abstracts 222-226)
Symposium: Small Ruminant: The U.S. Goat Meat Industry and Recent Sheep and Goat Activities at the National Research Council of The National Academies 187 (Abstracts 227-231)
ADSA-SAD (Student Affiliate Division) Undergraduate Competition: Original Research 189 (Abstracts 232-239)


Wednesday, July 9, 2008
POSTER PRESENTATIONS

Animal Health: Immunology 192 (Abstracts W1-W14)
Beef Species 197 (Abstracts W15-W27)
Breeding and Genetics II 202 (Abstracts W28-W57)
Companion and Exotic Animal Biology 212 (Abstracts W58-W65)
Dairy Foods: Milk, Dairy Food Chemistry and Microbiology 215 (Abstracts W66-W90)
Forages and Pastures II 223 (Abstracts W91-W113)
Nonruminant Nutrition: Carbohydrate and Lipids 232 (Abstracts W114-W141)
Physiology and Endocrinology: Gestation and Lactation Physiology 241 (Abstracts W142-W149)
Physiology and Endocrinology: Hormonal Control of the Estrous Cycle 244 (Abstracts W150-W172)
Production, Management and the Environment: Nutrient and Animal Management 252 (Abstracts W173-W194)
Ruminant Nutrition: Management and Misc Additives - Dairy 260 (Abstracts W195-W233)
Ruminant Nutrition: Proteins and Amino Acids - Beef, Sheep and Misc Ruminants 272 (Abstracts W234-W243)
Ruminant Nutrition: Management and Misc Additives - Dairy 276 (Abstracts W244-W280)
Swine Species 289 (Abstracts W281-W302)


SYMPOSIA AND ORAL SESSIONS

Animal Behavior and Well-Being: Swine 297 (Abstracts 240-245)
Animal Health IV 300 (Abstracts 246-254)
Symposium: Bioethics: How Do We Integrate Bioethics into Our Food Animal System? 303 (Abstracts 255-259)
Symposium: Breeding and Genetics: Genome Wide Selection 305 (Abstracts 260-263)
Symposium: Food Safety: Assuring Food Safety in a Globalized Market 307 (Abstracts 264-268)
Symposium: Forages and Pastures: Forage-Based Systems for Beef and Dairy Cattle Production: Regional Challenges and Opportunities 309 (Abstracts 269-273)
Growth and Development: Historical Perspective and Future Direction 311 (Abstracts 274-281)
Horse Species I 314 (Abstracts 282-289)
Meat Science and Muscle Biology: Measuring and Manipulating Pork Quality 317 (Abstracts 290-297)
Nonruminant Nutrition: Past and Future of Nonruminant Nutrition 320 (Abstracts 298-299)
Symposium: Physiology and Endocrinology: Emerging Concepts on Dietary Components that Influence the Physiology and Endocrinology of Domestic Farm Animals 321 (Abstracts 300-303)
Production, Management and the Environment: Nutrient Management and the Environment 323 (Abstracts 304-312)
Production, Management and the Environment: Young Stock, Environment and Management 326 (Abstracts 313-322)
Ruminant Nutrition: Fats and Fatty Acids 330 (Abstracts 323-333)
Ruminant Nutrition: Rumen Fermentation and Microbiology 334 (Abstracts 334-344)
Small Ruminant: Goats and Sheep 338 (Abstracts 345-351)
Swine Species 341 (Abstracts 352-361)
Symposium: Teaching/Undergraduate and Graduate Education: The Changing Student and Influence of Technology on Learning 345 (Abstracts 362-367)
Nonruminant Nutrition: Feed Additives I 347 (Abstracts 368-371)
Physiology and Endocrinology: Effects of Environment and Handling on Performance 349 (Abstracts 372-376)
Animal Behavior and Well-Being: Livestock: Swine and Sheep 351 (Abstracts 377-384)
Animal Health V 354 (Abstracts 385-393)
Symposium: ARPAS Symposium: Livestock Pharmaceuticals: The Past, The Present, The ... 357 (Abstracts 395-397)
Symposium: ASAS Graduate Student Symposium: Academia, Industry, Government, or None of the Above: Graduation is Coming, What Next? 358 (Abstracts 398-402)
Breeding and Genetics: Applications of Genomic Analysis 360 (Abstracts 403-413)
Symposium: Companion Animals: Perceptions and Implications of Companion Animals in Research and Teaching - Domestically and Globally 364 (Abstracts 414-422)
Symposium: Dairy Foods: Changes and Challenges of Probiotics in Dairy Products 367 (Abstracts 423-427)
Symposium: Extension Education: From 40 Acres and a Mule to Today: Historical Perspective of Extension Programming 369 (Abstracts 428-433)
Forages and Pastures II 371 (Abstracts 434-440)
Horse Species II 374 (Abstracts 441-448)
Lactation Biology I 377 (Abstracts 449-457)
Meat Science and Muscle Biology: Beef Quality 380 (Abstracts 458-465)
Symposium: Nonruminant Nutrition: Oxidative Stress and the Use of Antioxidants for Nonruminant Animals 383 (Abstracts 466-469)
Physiology and Endocrinology: The Physiology of Gestation and the Post-partum Interval 385 (Abstracts 470-480)
Production, Management and the Environment: Disease, Management and Environment 389 (Abstracts 481-487)
Symposium: Ruminant Nutrition: Glycerin as a Feed for Ruminants 392 (Abstracts 488-492)
Small Ruminant: Sheep 394 (Abstracts 493-500)
Teaching/Undergraduate and Graduate Education: Teaching in the Animal Sciences 397 (Abstracts 501-508)


Thursday, July 10, 2008
POSTER PRESENTATIONS

Animal Behavior and Well-Being: Methodology 400 (Abstracts TH1-TH4)
Animal Health: General 402 (Abstracts TH5-TH15)
Contemporary and Emerging Issues 406 (Abstracts TH16-TH17)
Dairy Foods: Dairy Products and Processing I 407 (Abstracts TH18-TH34)
Forages and Pastures III 413 (Abstracts TH35-TH57)
Growth and Development: Nonruminant Species 421 (Abstracts TH58-TH64)
Growth and Development: Ruminant Species 424 (Abstracts TH65-TH82)
Horse Species 430 (Abstracts TH83-TH99)
International Animal Agriculture 436 (Abstracts TH100-TH102)
Lactation Biology 437 (Abstracts TH103-TH118)
Nonruminant Nutrition: Mineral 442 (Abstracts TH119-TH130)
Nonruminant Nutrition: Protein and Amino Acids 446 (Abstracts TH131-TH160)
Physiology and Endocrinology: Physiology of Heat Stress 455 (Abstracts TH161-TH165)
Physiology and Endocrinology: Poultry and Swine Physiology 457 (Abstracts TH166-TH171)
Physiology and Endocrinology: Spermatozoa, In-Vitro Fertilization, and Embryo Transfer 459 (Abstracts TH172-TH185)
Production, Management and the Environment: Calf, Young Stock and Stress Management 464 (Abstracts TH186-TH208)
Ruminant Nutrition: Fats and Carbohydrates - Beef, Sheep, Misc. Ruminants 472 (Abstracts TH209-TH232)
Ruminant Nutrition: Minerals and Vitamins - Dairy 480 (Abstracts TH233-TH246)
Ruminant Nutrition: Proteins and Amino Acids - Dairy 485 (Abstracts TH247-TH272)
Small Ruminant: Sheep 495 (Abstracts TH273-TH294)


SYMPOSIA AND ORAL SESSIONS

Dairy Foods: Dairy Products and Processing II 502 (Abstracts 509-517)
Symposium: Animal Behavior and Well-Being: Animal Welfare Standards - Who Decides and How? 505 (Abstracts 518-520)
Breeding and Genetics: Computational Issues in Genomic Analysis 506 (Abstracts 521-528)
Breeding and Genetics: Current Issues in Swine Breeding 509 (Abstracts 529-536)
Dairy Foods: Cheese II 512 (Abstracts 537-541)
Food Safety Centennial Presentations 514 (Abstracts 542-543)
Forages and Pastures: Centennial Presentations 515 (Abstracts 544-545)
Horse Species III 516 (Abstracts 546-551)
Lactation Biology III 518 (Abstracts 552-555)
Symposium: Meat Science and Muscle Biology: Postmortem Changes in Myofibrillar Protein and the Associated Contribution to Meat Quality 520 (Abstracts 556-560)
Nonruminant Nutrition: Distillers Grains for Swine 522 (Abstracts 561-565)
Physiology and Endocrinology: Enhancing Reproductive Efficiency 524 (Abstracts 566-571)
Physiology and Endocrinology: Health and Immunology 526 (Abstracts 572-578)
Ruminant Nutrition: Carbohydrate Byproducts - Dairy 529 (Abstracts 579-585)
Ruminant Nutrition: Nitrogen Sources and Utilization 532 (Abstracts 586-593)
Symposium: Swine Species: Intestinal Barrier Function 535 (Abstracts 594-596)
Forages and Pastures III 536 (Abstracts 597-600)
Symposium: ADSA Production Division Symposium: Dairy Replacement Heifers: Cost Effective Strategies from Weaning to Calving 538 (Abstracts 601-604)
Animal Health VI 540 (Abstracts 605-610)
Breeding and Genetics: Breeding for Milk Quality and Test-Day Model Applications 542 (Abstracts 611-621)
Breeding and Genetics: Current Issues in Beef Cattle Breeding 546 (Abstracts 622-630)
Symposium: Companion Animals: Exotic Animal Nutrition 549 (Abstracts 631-637)
Symposium: Contemporary and Emerging Issues: Healthfulness of Dairy and Meat Products 552 (Abstracts 638-641)
Symposium: Dairy Foods: Emerging Non-Thermal Food Processing Technologies - Their Potential in Dairy Systems 553 (Abstracts 642-649)
Extension Education: All Species 556 (Abstracts 650-659)
Growth and Development: General Topics 560 (Abstracts 660-671)
Symposium: International Animal Agriculture: Welfare in Animal Production, from Science to Practice 564 (Abstracts 672-676)
Lactation Biology III 566 (Abstracts 677-687)
Meat Science and Muscle Biology: Meat Science Research: Past, Present, and Future 570 (Abstracts 688-692)
Nonruminant Nutrition: Energy Utilization 572 (Abstracts 693-704)
Nonruminant Nutrition: Feed Additives II 576 (Abstracts 705-712)
Physiology and Endocrinology: Synchronization of Estrus in Cattle 579 (Abstracts 713-723)
Ruminant Nutrition: Protein and Amino Acids - Beef 583 (Abstracts 724-733)
Ruminant Nutrition: Rumen Fermentation Modifiers 587 (Abstracts 734-745)


Friday, July 11, 2008
SYMPOSIA AND ORAL SESSIONS

Animal Behavior and Well-Being: Beef and Dairy Cattle 592 (Abstracts 746-756)
Breeding and Genetics: Dairy, Sheep & Goat - Crossbreeding, Inbreeding and Breed Conservation 596 (Abstracts 757-766)
Symposium: Growth and Development: The Molecular Basis for Feed Efficiency 600 (Abstracts 767-771)
Nonruminant Nutrition: Protein and Feed Additives 602 (Abstracts 772-781)
Symposium: Nonruminant Nutrition: Energy Systems and Alternative Energy Ingredients for Swine 606 (Abstracts 782-787)
Ruminant Nutrition: Acidosis, DCAD and Acid-Base Metabolism 608 (Abstracts 788-794)
Ruminant Nutrition: Energy and Carbohydrate Byproducts - Beef 611 (Abstracts 795-804)
Symposium: Triennial Lactation Symposium joint with Lactation Biology: 9th ASAS-EAAP International Workshop on the Biology of Lactation in Farm Animals 614 (Abstracts 805-811)
Ruminant Nutrition: Feeding Behavior, Chewing and Digestibility 617 (Abstracts 812-817)
Symposium: Triennial Lactation Symposium joint with Lactation Biology: 9th ASAS-EAAP International Workshop on the Biology of Lactation in Farm Animals 619 (Abstracts 818-823)

Author Index 621
Subject Index 639