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10:30 AM

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Animal welfare assessment and auditing. S. E. Curtis*, University of Illinois, Urbana.

11:00 AM

720

Auditing and assessing nutrient management for water quality. A. L. Sutton*, Purdue University, West Lafayette, IN.

11:30 AM

721

Auditing and assessing nutrient management for air quality. N. A. Cole*1, R. W. Todd , B. Auvermann2, and D. B. Parker3, USDA-ARS-CPRL, Bushland, TX, 2Texas Agricultural Experiment Station, Amarillo, West Texas A&M University, Canyon.

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12:00 PM

722

Training and certification of animal auditors. A. K. Baysinger*, Farmland Foods, Bruning, NE.

12:30 PM

Roundtable Discussion.

University of Nebraska, Lincoln.

SYMPOSIUM ARPAS Symposium Current and Future On-Farm Auditing & Assessment Chair: Darrell D. Johnson, Burkmann Feeds 205

10:30 AM

723

Analysis of calving ease trait in Canadian Holsteins. A. Sewalem*1,2, F. Miglior1,2, G. Kistemaker2, P. Sullvian2, and B. Doormaal2, 1Agriculture and Agri-Food Cananda, Guelph, Ontario, Canada, 2Canadian Dairy Network, Guelph, Ontario, Canada.

10:45 AM

724

Genetics of grass dry matter intake, energy balance and digestibility in Irish grazing dairy cows. D. P. Berry*, M. O'Donovan, and P. Dillon, Moorepark Dairy Production Research Center, Fermoy, Co. Cork, Ireland.

11:00 AM

725

Principal components approach for estimating heritability of mid-infrared spectrum in bovine milk. H. Soyeurt*1,2, S. Tsuruta3, I. Misztal3, and N. Gengler1,4, 1Gembloux Agricultural University, Gembloux, Belgium, 2FRIA, Brussels, Belgium, University of Georgia, Athens, 4FNRS, Brussels, Belgium.

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11:15 AM

726

Associations between body size, body condition score and fertility parameters in pasture-based seasonally calving commercial dairy herds in Australia. T. E. Stirling*1, C. R. Stockdale2, and K. L. Macmillan1, 1The University of Melbourne, Werribee, Victoria, Australia, 2Primary Industries Research Victoria, Kyabram, Victoria, Australia.

11:30 AM

727

Comparison of yield in Holsteins, Jerseys, and reciprocal crosses in the Virginia Tech - Kentucky crossbreeding trial. B. G. Cassell*1, K. M. Olson1, and A. J. McAllister2, 1Virginia Polytechnic Institute and State University, Blacksburg, 2University of Kentucky, Lexington.

11:45 AM

728

Quantitative Trait Loci affecting IgG serum protein levels, birth weight and gestation length in a Holstein x (Holstein x Jersey) backcross population. C. Maltecca*, K. A. Weigel, H. Khatib, and V. R. Schutzkus, University of Wisconsin, Madison.

12:00 PM

729

Stearoyl-CoA desaturase gene polymorphism and milk production traits in Italian Holsteins. N. P. P. Macciotta*1, M. Mele2, G. Pagnacco3, M. Cassandro4, G. Conte2, A. Cappio-Borlino1, and P. L. Secchiari2, 1Dipartimento di Scienze Zootecniche, Università di Sassari, Sassari, Italia, 2Dipartimento di Agronomia e Gestione dell'Agro-Ecosistema, Università di Pisa, Pisa, Italia, 3Dipartimento di Scienze e Tecnologie Veterinarie per la Sicurezza Alimentare, Università di Milano, Milano, Italia, 4Dipartimento di Scienze Animali, Università di Padova, Padova, Italia.

12:15 PM

730

Effect of pregnancy on milk yield of Canadian dairy cattle. S. Loker*1, J. Bohmanova1, F. Miglior2,3, M. Kelly1, and G. Kistemaker3, 1University of Guelph, Guelph, ON, Canada, 2Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada, Canadian Dairy Network, Guelph, ON, Canada.

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Breeding and Genetics - Livestock and Poultry Dairy Cattle III Chair: Janice Rumph, Montana State University 206 B

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