Severity of ruminal acidosis increases with repeated bouts particularly when cows are fed low forage diets. F. Dohme*1, T. J. DeVries2, K. A. Beauchemin2, K. M. Krause3, and K. S. Schwartzkopf-Genswein2, 1Agroscope Liebefeld-Posieux, Research Station ALP, Posieux, Switzerland, 2Agriculture and Agri-Food Canada, Lethbridge, AB, 3West Virginia University, Morgantown.
Feed sorting in dairy cattle: Effects of repeated acidosis challenges. T. J. DeVries*1, F. Dohme2, and K. A. Beauchemin1, 1Agriculture and Agri-Food Canada, Lethbridge, AB, 2Agroscope Liebefeld-Posieux, Posieux, Switzerland.
Grain-induced subacute ruminal acidosis (SARA) stimulates translocation of lipopolysaccharide (LPS) into the blood, and increases acute phase proteins in bovine plasma and milk. E. Khafipoor*, D. O. Krause, and J. C. Plaizier, University of Manitoba, Winnipeg, MB, Canada.
Induction of subacute ruminal acidosis (SARA) by replacing alfalfa hay with alfalfa pellets does not stimulate inflammatory response in lactating dairy cows. E. Khafipoor*, D. O. Krause, and J. C. Plaizier, University of Manitoba, Winnipeg, MB, Canada.
Particle analysis of swallowed hay boluses varying in chop length. I. Schadt*1, M. Caccamo1, J. D. Ferguson2, G. Azzaro1, R. Petriglieri1, P. Van Soest3, and G. Licitra1,4, 1CoRFiLaC, Regione Siciliana, Ragusa, Italy, 2University of Pennsylvania, School of Veterinary Medicine, Kennett Square, 3Cornell University, Ithaca, NY, 4D.A.C.P.A. University of Catania, Catania, Italy.
Rumen function and lameness in pasture based dairy cows of the South Island of New Zealand. J. Gibbs*, J. Laporte-Uribe, C. Trotter, and J. Noel, Dairy Science Group, Agriculture and Life Sciences, Lincoln University, Canterbury, New Zealand.
Effect of lifecycle stage of dairy cattle on serum mineral concentrations. D. R. Bremmer1, R. H. Schulte2, and M. T. Socha*3, 1Vita Plus Corporation, Madison, WI, 2Modified Genetics, Marshfield, WI, 3Zinpro Corporation, Eden Prairie, MN.
Phosphorus balance in dairy cows during lactation. J. A. Elizondo Salazar*1, D. B. Beegle1, J. D. Ferguson2, and Z. Wu2, Pennsylvania State University, University Park, 2University of Pennsylvania, Kennett Square.
Effect of 2-hydroxy-4-(methylthio) butanoic acid isopropyl ester on milk production and composition of high yielding lactating Holstein dairy cows. R. H. Phipps*1, A. K. Jones1, C. K. Reynolds1, D. I. Givens1, P-A. Geraert2, and C. Richard2, University of Reading, Reading, UK, 2Adisseo, Commentary, France.
Transport of 2-hydroxy-4-methyl-thio-butanoic isopropyl ester (HMBi) across rumen epithelium in vitro. W. Heimbeck*1 and G. Breves2, 1Degussa GmbH, Hanau, Germany, 2Institute for Physiology, School of Veterinary Medicine, Hannover, Germany.
Responses of rumen and blood metabolites of Holstein dairy cows to propylene glycol during frequent feeding. Y.-H. Chung*, C. M. Martinez, N. E. Brown, T. W. Cassidy, and G. A. Varga, Dairy and Animal Science, Pennsylvania State
Ruminant Nutrition Intake Behavior/Acidosis/Metabolism - Dairy Chair: Kendall Swanson, University of Guelph 217 C
University, University Park.
Ruminant Nutrition Lipid Supplementation Chair: Tilak Dhiman, Utah State University ASAS Early Career Achievement Award Sponsored by the ASAS Foundation 217 B
G l u c o s e m i n i m a l m o d e l i n g i n l a c t a t i n g d a i r y c o w s . R . C . B o s t o n * 1 , J . R . R o c h e 2 , a n d P . J . M o a t e 1 , 1 U n i v e r s i t y o f
Pennsylvania, Kennett Square, 2University of Tasmania, Burnie, Tas, Australia.
ASAS Early Career Achievement Award Introduction.
A decade of research developments in ruminant nutrition at the University of Wyoming. B. W. Hess*, University of Wyoming, Laramie.
Questions for Dr. Hess.
Effect of dietary fish and soyoil supplementation on muscle fatty acid concentrations and oxidative lipid stability in beef