2003 Research Reports
Beef and Dairy Cattle, Swine, Poultry, Sheep, Horses and Animal Products
December 2003
Publication: P-998
Oklahoma Agricultural Experiment Station
Division of Agricultural Science and Natural Resources
Oklahoma State University
Animal Breeding
Lifetime Productivity of Crossbred Cows Sired by High and Low Milk EPD Angus and Hereford
Bulls
R.J. Hammack and D.S. Buchanan
Food Science
Application of Acid Solubilization Isoelectric Precipitation to Recover Protein from
Low Value Red Meat
J.M. James and C.A. Mireles DeWitt
Nutrition/Management Cow/Calf
Effects of a Sunflower Seed Supplement on Performance and Reproduction of Beef Cows
J.P. Banta, D.L. Lalman, F.N. Owens, and R.P. Wettemann
Timed Breeding and Calf Separation in Early and Late Fall Calving Cows
D.W. Kastner, F.J. White, and I. Rubio, D.L. Lalman, and R.P. Wettemann
Nutrition/Management Feedlot Cattle
Instrument vs Manual Sortation of Feedlot Steers and Heifers
R.E. Peterson, D.R. Gill, C.R. Krehbiel, and H.G. Dolezal
Effect of Energy Level and a Fibrolytic Enzyme on Performance and Health of Newly
Received Shipping Stressed Calves
R.E. Peterson, C.R. Krehbiel, D.R. Gill, and C.E. Markham
Effects of Purchasing Bull or Steer Calves on Receiving Performance and Wheat Pasture
Gain
H.A. DePra, R.E. Peterson, D.R. Gill, A.L. Hutson, B. LeValley, D.L. Step and C.R.
Krehbiel
Nutrition/Management Horses
Effects of Trace Mineral Source on Growth and Mineral Balance in Yearling Horses
T.L. Naile, S.R. Cooper, D.W. Freeman, and C.R. Krehbiel
Nutrition/Management Swine
Effects of a Solid-State Fermented Phytase on Growth Performance, Bone Traits and
Phosphorus Digestibility of Growing Pigs Fed Corn-Soybean Meal Diets Containing Wheat
Middlings
J.S. Park, S.D. Carter, J.D. Schneider, and T.B. Morillo
Effects of a Solid-State Fermented Phytase on Phosphorus Utilization in Growing Pigs
Fed Corn-Soybean Meal Diets: I. Growth Performance and Phosphorus Excretion
J.S. Park, S.D. Carter, J.D. Schneider, and T.B. Morillo
Effects of a Solid-State Fermented Phytase on Phosphorus Utilization in Growing Pigs
Fed Corn-Soybean Meal diets: II. Bone Traits and Tissue Accretion Rates
J.S. Park, S.D. Carter, J.D. Schneider, and T.B. Morillo
Effects of Reducing Metabolizable Energy Concentration in Diets Containing Spray-Dried
Porcine Plasma on Weanling Pig Performance
T.B. Morillo, S.D. Carter, J.S. Park, and J.D. Schneider
Effects of Reducing Metabolizable Energy Concentration in Diets Containing Either
Spray-Dried Porcine Plasma or Soy Protein Concentrate on Weanling Pig Performance
T.B. Morillo, S.D. Carter, J.S. Park, and J.D. Schneider
Nutrition/Management Stocker Cattle
A Modification of the Oklahoma Green Gold Supplementation Program: Supplement Intake
and Performance of Wheat Pasture Stocker Cattle
B.G. Fieser, G.W. Horn, J.R. Kountz, and S.A.Schaefer
Effect of Degradable or Undegradable Intake Protein on Forage Intake and Digestibility
in Steers Consuming Low Quality Forage
R. Basurto-Gutierrez, , H.T. Purvis, II, G.W. Horn, C.R. Krehbiel, T.N.Bodine, J.S.
Weyers
The Effect of Increasing Levels of Postruminal Casein Infusion on Low-Quality Forage
Intake
J.S. Weyers and H.T. Purvis, II
Nitrogen Retention of Steers Consuming Hays of different Nutritive Value and the Effect
of Supplemental Nitrogen on Nitrogen Retention of Animals fed Prairie Hay
R. Basurto-Gutierrez, H.T. Purvis, II, G.W. Horn, C.R. Krehbiel
Phosphorus Removal by Different Wheat-Stocker Cattle Production Systems
J.A. Hattey, G.W. Horn, C.R. Krehbiel, C.A. Strasia, and E.G. Krenzer
Physiology
Changes in Plasma Cholesterol Concentrations During Early Lactation in Holstein Cows
and its Association with Production Variables
L.J. Spicer and C.C. Francisco
Concentrations of Insulin-Like Growth Factor-I and Steroids in Dominant Follicles
during Postpartum Anestrus and after the Onset of Estrus
F.J. White, I. Rubio, C.A. Lents, N.H. Ciccioli, R.P. Wettemann, and L.J. Spicer
Effect of Insulin-like Growth Factor (IGF)-I and Follicle-Stimulating Hormone (FSH)
on Estradiol Production by Equine Ovarian Granulosa Cells
L.J. Spicer, J.L. Voge and D.T. Allen
Relationship Between Follicle Size and Concentrations of Steroids and Insulin-like
Growth Factor (IGF)-I in Mares
L.J. Spicer, T.R. Davidson, C.S. Chamberlain, and M.E. Payton