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9:30 AM


Effects of dim light at night on milk yield, milk composition and endocrine profile of lactating dairy cows. M. A. Bal*1, G. B. Penner1, M. Oba1, and A. D. Kennedy2, 1University of Alberta, Edmonton, AB, Canada, 2University of Manitoba, Winnipeg, MB, Canada.

9:45 AM


Effects of dairy drylot corral management on air emissions. L. M. Nuckles* and F. M. Mitloehner, University of California, Davis.

10:00 AM


Characterization and quantification of emissions from dairies. N. M. Marcillac*1, F. M. Schwander1, R. F. Follett1, J. L. Collett2, and N. P. Hanan1, 1Colorado State University, Fort Collins, 2USDA/ARS, Fort Collins, CO.

10:15 AM


Effects of waste management techniques to reduce dairy emissions from freestall housing. M. S. Calvo*, K. R. Stackhouse, and F. M. Mitloehner, University of California, Davis.

10:30 AM


Nitrogen losses from dairy manure estimated through nitrogen mass balance or using markers. A. N. Hristov*1, S. Zaman1, M. Vander Pol1, P. Ndegwa2, S. Silva3, and C. Kendall2, 1University of Idaho, Moscow, 2Washington State University, Pullman, 3U.S. Geological Survey, Menlo Park, CA.

10:45 AM


Comparision of the Intergovernmental Panel on Climate Change (IPCC) system for estimating methane emission from dairy cows. S. K. Nes*, H. Volden, and S. J. Krizsan, Norwegian University of Life Sciences, Ås, Norway.

11:00 AM


Prediction of DHI udder health values from bulk tank information. A. J. Young*1 and S. P. Tripp2, 1Utah State University, Logan, 2DHI-Provo Computing Service, Provo, UT.

11:15 AM


Variance components of test-day milk, milk components, and somatic cell score useful for management advice. M. Caccamo*1, R. F. Veerkamp2, G. de Jong3, M. H. Pool2, R. Petriglieri1, G. Azzaro1, and G. Licitra1,4, 1CoRFiLaC, Regione Siciliana, Ragusa, Italy, 2Animal Breeding and Genomics Center, ASG, WageningenUR, Lelystad, The Netherlands, 3NRS, Arnhem, The Netherlands, 4D.A.C.P.A. University of Catania, Italy.

11:30 AM


Waste milk supply and pasteurizer performance on California dairy farms and calf ranches. M. C. Scott, R. E. James*, and M. L. McGilliard, Virginia Polytechnic Institute and State University, Blacksburg, VA.

11:45 AM


Investigating relationship between protein-fat difference and milk yield of Iraninan Holstein dairy cows. B. Saremi*1, J. Ghaseminejad2, and J. Eslami3, 1Education center of Jihad-e Agriculture, Animal Science Department, Khorasan Razavi, Mashhad, Iran, 2Animal Science Department of Agricultural and Natural Resources University of Gorgan, Iran, 3Animal Science Department of Zabol University, Iran.

12:00 PM


Best management practices to improve milk quality and udder health in organically-managed dairy herds in Southeastern Pennsylvania. K. E. Griswold*1, H. Karreman2, and J. Mylin3, 1 Pennsylvania State Cooperative Extension, University Park, 2Penn Dutch Cow Care, Gap, PA, 3Lancaster DHIA, Manheim, PA.

Production, Management & the Environment - Livestock and Poultry Dairy Production and Management II Chair: Paul Fricke, University of Wisconsin 214 A

Production, Management & the Environment - Livestock and Poultry Poultry Production, Management and Environment Chair: William B. Roush, USDA ARS Poultry Research Unit 213

9:30 AM


Increasing lighting program effects on production characteristics of modern broilers. K. Schwean-Lardner*1, H. L. Classen1, and B. I. Fancher2, 1University of Saskatchewan, Saskatoon, Saskatchewan Canada, 2Aviagen North America, Huntsville, AL.

9:45 AM


Does broiler breeder flock age influence embryonic metabolism in different genetic strains? J. A. Hamidu*1, G. M. Fasenko1, E. E. O'Dea1, J. J. R. Feddes1, C. A. Ouellette1, V. L. Christensen2, and M. J. Wineland2, 1University of Alberta, Edmonton, Alberta, Country, 2North Carolina State University, Raleigh.

10:00 AM


Effects of in ovo injection of select salt solutions and metabolic compounds on chicken embryo livability and growth. B. M. McGruder*1, E. D. Peebles1, D. A. Braasch1, M. A. Dekich2, P. D. Gerard1, and R. W. Keirs1, 1Mississippi State University, Mississippi State, 2AviTech, LLC, Salisbury, MD.

10:15 AM


Partial coefficients of nutrient partitioning of broiler breeders using different feeding strategies during the production phase. L. F. Romero*1, M. J. Zuidhof , A. Naeima1, F. E. Robinson1, and R. A. Renema1, 1University of Alberta, Edmonton, AB, Canada, 2Alberta Agriculture and Food, Edmonton, AB, Canada.



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