Effect of soaking dairy cows at the feed line on animal body temperature in a tunnel ventilated barn equipped with evaporative pads located in a tropical climate, Thailand. D. V. Armstrong*1, M. J. VanBaale1, S. Rungruang2, V. Wuthironarith2, M. J. Brouk3, and J. F. Smith3, 1The University of Arizona, Tucson, 2Charoen Pokphand Group Co., Ltd., Bangkok, Thailand, 3Kansas State University, Manhattan.
Effect of soaking dairy cows at the feed line on animal behavior in a tunnel ventilated barn equipped with evaporative pads located in a tropical climate, Thailand. D. V. Armstrong*1, M. J. VanBaale1, S. Rungruang2, V. Wuthironarith2, M. J. Brouk3, and J. F. Smith3, 1The University of Arizona, Tucson, 2Charoen Pokphand Group Co., Ltd., Bangkok, Thailand, 3Kansas State University, Manhattan.
Thermal status for different breeds of dairy cattle exposed to summer heat stress in a grazing environment. J. N. Spain*1, L. Parsons1, R. Crawford2, C. Brown2, and D. E. Spiers1, 1University of Missouri, Columbia, 2Soutwest Research Center, Mt. Vernon, MO.
Labor, housing, feeding, and bedding affects on herd turnover rate and mortality rates of Southeastern Pennsylvania dairy herds. C. D. Dechow1 and R. C. Goodling*2, 1The Pennsylania State University, University Park, 2Pennsylvania State Cooperative Extension, University Park, PA.
Body weight and condition score of four dairy genetic groups in summer or winter under low-input management. D. G. Johnson*1, B. J. Heins2, L. B. Hansen2, A. J. Seykora2, and J. G. Linn2, 1University of Minnesota, Morris, 2University of Minnesota, St. Paul.
Phosphorus removal capacity of forages used on South Florida dairies. Y. C. Newman*, J. M. Scholberg, M. B. Adjei, and L. E. Sollenberger, University of Florida, Gainesville.
Efficiency of use of imported magnesium, sulfur, copper, and zinc in Idaho dairy farms. A. N. Hristov*, W. Hazen, and J. W. Ellsworth, University of Idaho, Moscow.
Reproductive status of dairy herds in Alberta: An objective assessment based on milk progesterone (P4) concentrations. D. J. Ambrose*1, M. G. Colazo1, and J. P. Kastelic2, 1Alberta Agriculture and Food, Edmonton, AB, Canada, 2Agriculture and Agri-Food Canada, Lethbridge, AB, Canada.
Incidence and interrelation of some common hoof problems in a Southeast US dairy herd. A. H. Sanders*1, J. K. Shearer1, L. C. Shearer1, S. R. van Amstel2, D. W. Webb1, and A. De Vries1, 1University of Florida, Gainesville, 2University of Tennessee, Knoxville.
Economic analysis of bovine somatotropin to increase pregnancy rates in lactating dairy cows. A. A. Bell*, P. J. Hansen, and A. De Vries, University of Florida, Gainesville.
Performance of beef calves weaned by traditional, fenceline, and two-step methods. D. D. Buskirk, J. M. Siegford, and B. A. Wenner*, Michigan State University, East Lansing.
A comparison of visual and palpation-based body condition scoring systems. J. M. Bewley*1, R. E. Boyce2, D. J. Roberts3, M. P. Coffey3, A. Bagnall3, and M. M. Schutz1, 1Purdue University, West Lafayette, IN, 2IceRobotics Ltd., Roslin, Scotland, UK, 33Scottish Agricultural College Dairy Research Centre, Dumfries, Scotland, UK.
Effect of discontinuous roughage delivery in a feedlot diet on liveweight gain and feed efficiency of beef steers. M. Avila3, J. I. Arroquy*1,2, and J. J. Saravia1, 1INTA Santiago del Estero, Santiago del Estero, Argentina, 2Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina, 3Universidad Nacional de Santiago del Estero, Santiago del Estero, Argentina.
Simulation model of fat deposition and distribution in beef steers: 1. Empirical models converting fat thickness to subcutaneous fat and KPH to visceral fat. M. J. McPhee*1,2, J. W. Oltjen1, J. G. Fadel1, D. Perry2, and R. D. Sainz1, 1University of California, Davis, 2NSW DPI, Armidale, Australia.
Simulation model of fat deposition and distribution in beef steers: 2. Empirical models to initialize fat deposition models. M. J. McPhee*1,2, J. W. Oltjen1, J. G. Fadel1, and R. D. Sainz1, 1University of California, Davis, 2NSW DPI, Armidale, Australia.
Pasturing to decrease greenhouse gas emissions from feedlot cattle operations: A whole system approach. H. Koknaroglu1, T. Akunal1, T.
Transcript profiling in mammary of ovariectomized pregnant gilts receiving progesterone and relaxin replacement therapy in late gestation. D. E. Graugnard*, J. J. Loor, E. A. Cutler, R. E. Everts, S. L. Rodriguez-Zas, and W. L. Hurley, University of Illinois, Urbana.
Effect of boron supplementation on semen quality in mature boars. W. L. Flowers*1, J. W. Spears1, and F. H. Nielsen2, 1North Carolina State University, Raleigh, 2USDA-ARS, Grand Forks Human Nutrition Center, Grand Forks, ND.
Transient transgene transmission to piglets by sperm-mediated gene transfer. Z. Wu1, Z. Li1,2, and J. Yang*2, 1South China Agricultural University, Guangzhou, Guangdong, China, 2University of Hawaii, Honolulu.
Computer-assisted analysis of sperm parameters after selection of motile sperm by either percoll gradient, filtration or swim-up procedures. C. N. Person*, T. D. Lester, M. D. Person, and R. W. Rorie, University of Arkansas, Fayetteville.
Production, Management & the Environment - Livestock and Poultry III Exhibit Hall C