Research Series 553: Arkansas Animal Science Department Report 2007
Zelpha B. Johnson and D. Wayne Kellogg, editors

Cover and front matter
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Comparison of Weaning Ratio in Five Breeds of Cattle

Z.B. Johnson, A.H. Brown, Jr., and S.T. Dewey
Pages 10-12
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Relationship of Lactate Dehydrogenase Activity with Body Measurements of Angus x Charolais Cows and Calves
M.L. Looper, T.P. Neidecker, C.W.Wall, S.T. Reiter, R. Flores, A.H. Brown, Jr., Z.B. Johnson, and C.F. Rosenkrans, Jr.
Pages 13-15
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Supplemental Trace Minerals (Zn, Cu,Mn, And Co) as Availa®4 or Inorganic Sources for Shipping-Stressed Cattle
M.R. Pass, E.B. Kegley, and C.K. Larson
Pages 16-21
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Arkansas Steer Feedout Program 2005-2006
B. Barham, S. Gadberry, J. Richeson, and S. Cline
Pages 22-24
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Regression of Feed Intake on Selected Environmental Factors for Beef Bulls During Post-Weaning Feedlot Performance Tests
G.T. Tabler, Jr., A.H. Brown, Jr., E.E. Gbur, Jr., I.L. Berry, Z.B. Johnson D.W. Kellogg, and K.C. Thompson
Pages 25-28
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Effects of Selected Weather Factors on Feed Intake of Angus, Polled Hereford, and Simmental Beef Bulls During Feedlot Performance Tests
G.T. Tabler, Jr., A.H. Brown, Jr., E.E. Gbur, Jr., I.L. Berry, Z.B. Johnson, D.W. Kellogg, and K.C. Thompson
Pages 29-33
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Influence of Sanitizing Feedlot Pens on Microbial Populations and Cattle Performance
M.S. Lee, J.K. Apple, J.S. Yancey, J.T. Sawyer, M.M. Brashears, and TP. Stephens Pages 34-38
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Influence of Reproductive Tract Score on Pregnancy in Angus Heifers
J.G. Powell, A.H. Brown, T.A. Yazwinski, R.A. Rorie, Z.B. Johnson, J.L. Reynolds Pages 39-40
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Reproductive Performance, Blood Urea Nitrogen, and Blood Glucose Concentration in Beef Heifers Grazing Annual Ryegrass in the Spring and Supplemented at Different Intervals Prior to Timed AI
D.L. Kreider, K.P. Coffey, J.D. Caldwell,W.A.Whitworth, T.G.Montgomery, R. Rorie, R.W.McNew, W. Coblentz, and R.K. Ogden
Pages 41-44
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Effect of Bovine Somatotropin Treatment on AI Pregnancy Rate in Dairy Heifers
R.W. Rorie and T.D. Lester
Pages 45-46
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Effects of Penicillamine,Hypotaurine and Epinephrine (PHE) on Post-Thaw Bovine
Sperm Parameters, as Measured by Computer-Assisted Sperm Analysis
C.N. Person, T.D. Lester, M.D. Person, and R.W. Rorie
Pages 47-50
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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
Pages 51-53
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Effects of Milk Antimicrobial Proteins on Incidence of Mastitis in Dairy Cattle
M.D. Person, C.N. Person, T.D. Lester, and R.W. Rorie
Pages 54-55
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DairyMetrics for Arkansas Herds in May, 2007
J.A. Pennington
Pages 56-62
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Glycerol as a Supplemental Energy Source for Meat Goats
K.R. Hampy, DW. Kellogg, K.P. Coffey, E.B, Kegley, J.D. Caldwell, M.S. Lee, MS. Akins, J.L. Reynolds, J.C.Moore, and K.D. Southern
Pages 63-64
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In Vitro DM Digestibility of Crabgrass, Bermudagrass, and Wheat Forages Supplemented with Four Levels of Glycerol1
K.R. Hampy, D.W. Kellogg, K.P. Coffey, and K. Anschutz
Pages 65-66
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Cow and Calf Performance While Grazing Tall Fescue Pastures with Either the Wild-Type Toxic Endophyte or a Non-Toxic Novel Endophyte
K.P. Coffey,W.K. Coblentz, J.D. Caldwell, C.P.West, R.K. Ogden, T. Hess, D.S. Hubbell, III, M.S. Akins, and C.F. Rosenkrans, Jr.
Pages 67-69
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Growth Performance and Immune Function of Fall-Born Beef Calves Weaned from Endophyte-Infected Tall Fescue Pastures on Different Dates in the Spring
J.D. Caldwell, K.P. Coffey,W.K. Coblentz, R. K. Ogden, J. A. Jennings, D.S. Hubbell, III, D.L. Kreider, and C.F. Rosenkrans, Jr.
Pages 70-72
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Nutritive Value of Fall-Grown Cereal-Grain Forages over Time
M.S. Akins, E.B. Kegley, J.L. Gunsaulis,W.K. Coblentz, K.S. Lusby, R.K. Ogden, J.D. Caldwell, R.K. Bacon, and K.P. Coffey
Pages73-77
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Effect of Surface Decontamination Using Antimicrobial Agents on Microbiological Quality of Beef Steaks
F.W. Pohlman, P.N. Dias-Morse, C.W. Rowe, and S.R. De Silva
Pages 78-80
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Effect of Salt, Trisodium Phosphate, Synthetic Antioxidants, and Conjugated Linoleic Acid on Sensory and Quality Characteristics of Beef Striploins
C.W. Rowe, F.W. Pohlman, A.H. Brown, Jr., and Z.B. Johnson
Pages 81-83
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Effect of Salt, Trisodium Phosphate, Synthetic Antioxidants, and Conjugated Linoleic Acid on Instrumental Color Characteristics and Physical Characteristics of Beef Striploins of Different Quality Grades
C.W. Rowe, F.W. Pohlman, A.H. Brown, Jr., and Z.B. Johnson
Pages 84-86
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Color Stability of Dark-cutting Beef Enhanced with Lactic Acid
J.T. Sawyer, J.K. Apple, Z.B. Johnson, R.T. Baublits, and J.W.S. Yancey
Pages 87-91
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The Impact of Acidic Marination Concentration and Sodium Chloride on Sensory and Instrumental Color Characteristics of Dark-cutting Beef
J.T. Sawyer, J.K. Apple, and Z.B. Johnson
Pages 92-95
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Impact of Stressing a Pen Mate on Physiological Responses of Growing Pigs
J.B. Koonce, E.B. Kegley, D.L. Galloway, Sr., and J.K. Apple
Pages 96-99
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Effect ofWeaning Age on Nursery Pig Growth Performance
B.E. Bass, C.L. Bradley, J.W. Frank, and C.V.Maxwell
Pages 100-102
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Effect of Feeding Alfalfa on Nursery Pig Growth Performance
C.L.Martin, J.W. Frank, Z.B. Johnson, G.M.Weiss, and C.V. Maxwell
Pages 103-105
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Characterization of Claw Lesions Associated with Lameness in the University of Arkansas Sow Herd
C.L. Bradley, J.W. Frank, C.V.Maxwell, Z.B. Johnson, J.G. Powell, S.R. Van Amstel, and T.L.Ward
Pages 106-112
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