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2:15 PM

556

Crossbreds of Jersey/Holstein compared to pure Holsteins for production, fertility, and udder traits during first lactation. B. J. Heins, L. B. Hansen, A. J. Seykora, A. R. Hazel*, J. G. Linn, and D. G. Johnson, University of Minnesota, St. Paul.

2:30 PM

557

SNPs in the 3'UTR of Stearoyl-CoA desaturase gene in Canadian Holsteins and Jerseys. P. M. Kgwatalala, E. M. Ibeagha- Awemu*, J. F. Hayes, and X. Xhao, McGill University, Ste Anne De Bellevue, Quebec, Canada.

2:45 PM

558

Estimation of yields for long lactations using best prediction. J. B. Cole*1, P. M. VanRaden1, and C. M. B. Dematawewa2, 1Animal Improvement Programs Laboratory, USDA, Beltsville, MD, 2Virginia Polytechnic Institution and State University, Blacksburg.

3:00 PM

559

Genetic parameter estimates for days open by using a random regression model to analyze data from a long-term designed selection experiment. G. A. Gutierrez*, M. H. Healey, and P. J. Berger, Iowa State University, Ames.

3:15 PM

560

Construction and application of a bovine high-density SNP assay. C. P. Van Tassell*1, L. K. Matukumalli1,4, C. Taylor5, T. P. L. Smith3, T. S. Sonstegard1, R. D. Schnabel2, M. V. B. De Silva1, G. R. Wiggans1, G. Liu1, S. Moore6, and J. F. Taylor2, USDA, ARS Beltsville Agricultural Research Center, Beltsville, MD, 2University of Missouri, Columbia, 3USDA, ARS, US Meat Animal Research Center, Clay Center, NE, 4George Mason University, Fairfax, VA, 5Illumina, Inc., San Diego, CA, University of Alberta, Edmonton, AB, Canada.

1

6

3:30 PM

Break

3:45 PM

561

Estimation of genetic parameters with random regression models using test-day records beyond 305 days in milk. J. Bohmanova1, F. Miglior*2,3, and J. Jamrozik1, 1University of Guelph, Guelph, ON, Canada, 2Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada, 3Canadian Dairy Network, Guelph, ON, Canada.

4:00 PM

562

Selection of dairy cow families for superior pregnancy rate. C. N. Vierhout*, S. P. Washburn, R. L. McCraw, E. J. Eisen, and J. P. Cassady, North Carolina State University, Raleigh.

4:15 PM

563

Mapping of quantitative trait loci economic important traits in Canadian holstein bulls. D. Kolbehdari*, S. Moore, and Z. Wang, University of Alberta, Edmonton, Alberta, Canada.

4:30 PM

564

Economic value of a marginal increase in pregnancy rate in dairy cattle. A. De Vries*, University of Florida, Gainesville.

4:45 PM

565

Relationships between locomotion and lesion score, punch resistance and Holstein (HUKI) conformation scores. B. Winkler1 and J. K. Margerison*2, 1University of Plymouth, Plymouth, UK, 2Massey University, Palmerston North, New Zealand.

4:15 PM

569

Fatty acids: Approaches to prevent or modify nutrient damage from oxidation. R. G. Brannan*, Ohio University, Athens.

4:55 PM

570

Minerals: Effect of form on requirements and bioavailability. L. L. Southern*, LSU Agricultural Center, Baton Rouge, LA.

5:35 PM

Wrap-up.

SYMPOSIUM Companion Animals Pet Food Ingredients - Mining, Dredging, and Extrapolating Effective Nutrient Delivery Chair: Greg Aldrich, Pet Food & Ingredient Technology, Inc. 214 A

2:00 PM

Introduction and Opening Comments. Greg Aldrich, Pet Food & Ingredient Technology, Inc..

2:05 PM

566

Advances in evaluating pet food ingredients: Methodologies. G. C. Fahey, Jr.*, University of Illinois, Urbana.

2:45 PM

567

AntiNutrients: Factors limiting utilization of nutrients in pet food ingredients. C. M. Grieshop* and G. Kuhlman, The Iams Company, Lewisburg, OH.

3:25 PM

568

Proteins: Advances in rendering animal and marine products. C. R. Hamilton* and D. Kirstein, Darling International Inc., Irving, TX.

4:05 PM

Break

80

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