1998 Research Reports
July 1998
Oklahoma Agricultural Experiment Station
Division of Agricultural Science and Natural Resources
Oklahoma State University
Breeding and Genetics
Characterization of boxed beef value in Angus sires
S.L. Dolezal and H.G. Dolezal pp. 1-6
Development of a high resolution map of a putative quantitative trait locus for average
daily gain in pigs
A.C. Clutter and S. Sasaki pp. 7-10
Milk expected progeny difference and its effect on milk production and calf performance
in first calf heifers from Angus and Polled Hereford sires
R.J. Gosz and D.S. Buchanan pp. 11-15
Food Science
Agrado™ for finishing cattle: effects on shelf life of beef
C.L. Krumsiek and F.N. Owens pp. 16-20
Boxed beef value and percentage yield of steers in the Oklahoma Steer Feedout Program
B.A. Gardner, S.L. Dolezal, H.G. Dolezal and C.W. Shearhart, pp. 21-27
Characteristics of dark cutting steer carcasses
S.M. Janloo, H.G. Dolezal, B.A. Gardner, F.N. Owens, J. Peterson and M. Molenhauer, pp. 28-31
Color video image analysis for augmenting beef carcass grading
B.R. Schutte, N. Biju, G.A. Kranzler and H.G. Dolezal, pp. 32-36
Health of finishing steers: effects on performance, carcass traits and meat tenderness
B.A. Gardner, H.G. Dolezal, L.K. Bryant, F.N. Owens, J.L. Nelson, B.R. Schutte and
R.A. Smith, pp. 37-45
Nutrition/Management Cow/Calf
Effect of days fed on live weight gain and carcass characteristics
J.T. Wagner, D.R. Gill, C.A. Strasia, H.G. Dolezal, B.A. Gardner, F.N. Owens, B.R.
Schutte and J.J. Martin, pp. 46-49
Effect of magnesium mica on live weight gain and carcass characteristics
J.T. Wagner, D.R. Gill, C.A. Strasia, H.G. Dolezal, B.A. Gardner, B.R. Schutte, F.N.
Owens and J.J. Martin, pp. 50-53
Supplemental protein requirements for beef cows grazing stockpiled bermudagrass
J.S. Wheeler, D.L. Lalman and L.A. Redmon, pp. 54-56
Nutrition/Management Feedlot Cattle
Activity patterns of feedlot steers
Z.I. Prawl and F.N. Owens
Agrado™ for finishing cattle: effects on performance, carcass measurements
C.L. Krumsiek and F.N. Owens
Effects of Agrado™ , an antioxidant, on odor of cattle feces
A. La Manna, F.N. Owens, C.L. Krumsiek and S. Janloo
Effects of limited feed access time and day vs night feeding on performance and carcass
characteristics of feedlot steers
Z.I. Prawl, F.N. Owens and D.R. Gill
Effects of morning vs evening feeding on T3 and T4 concentrations in feedlot steers
Z.I. Prawl, R.P. Wettemann, F.N. Owens and L. Mackey
Effects of pen size or housing on performance and carcass characteristics of feedlot
steers
Z.I. Prawl, F.N. Owens and D.R. Gill
Effect of selected characteristics on the sale price of feeder cattle in eastern Oklahoma
S.C. Smith, D.R. Gill, S.C. Jones and B.A. Gardner
Effect of winter grazing implant on subsequent summer grazing and feedlot performance
S.I. Paisley, G.W. Horn, C.J. Ackerman and D.S. Secrist
Impact of health on profitability of feedlot steers
B.A. Gardner, H.G. Dolezal, F.N. Owens, L.K. Bryant, J.L. Nelson, B.R. Schutte and R.A. Smith
Impact of withholding feed on performance and carcass measurements of feedlot steers
S.M. Janloo, H.G. Dolezal, B.A. Gardner, F.N. Owens, J. Peterson and M. Moldenhauer
Impact of withholding feed on weight and composition of ruminal contents
S.M. Janloo, H.G. Dolezal, C. Strasia, W. Clarkson, F.N. Owens and A. La Manna
Nutrition/Management Horse
Effects of sex and weaning on serum osteocalcin concentration in horses
K.L. Fletcher, D.R. Topliff, D.W. Freeman, S.R. Cooper and M.L. Looper
Evaluation on bone mineral content in equine cadavers and pregnant mares
S.R. Cooper, D.R. Topliff, D.W. Freeman, M.A. Collier and O.K. Balch
Nutrition/Management Stocker Cattle
Alternate day feeding of a monensin-containing energy supplement on weight gains of
steers grazing winter wheat pasture
S.I. Paisley, G.W. Horn, J.N. Carter and C.J. Ackerman
Effect of deworming treatment on weight gain of steers during season-long summer grazing
R.L. Gillen and G.W. Horn
Effect of ionophore on rumen characteristics, gas production, and occurrence of bloat
in cattle grazing winter wheat pasture
S.I. Paisley and G.W. Horn
Effect of winter grazing implant on carcass characteristics
S.I. Paisley, G.W. Horn, C.J. Ackerman, D.S. Secrist and B.A. Gardner
Effects of grazing system and stocking density on performance of summer stocker cattle
grazing tallgrass prairie
T.N. Bodine, H.T. Purvis II, S.D. Fuhlendorf, G.W. Horn, R.L. Gillen, F.T. McCollum
III, J.R. Weir and B.R. Karges
Effects of supplementation on late summer weight gain of stocker cattle grazing tallgrass
and midgrass prairie
T.N. Bodine, H.T. Purvis II, M.T. Van Koevering, E.E. Thomas, D.L. Lalman, C. Worthington,
B.R. Karges and J.R. Weir
Energy and protein supplementation for stockers grazing bermudagrass pasture
D.L. Lalman, H.T. Purvis II, R. Brown and D.A. Cox
Heavy vs light weight steers grazing old world bluestem at three stocking rates: I.
Steer weight gain and economic analysis
C.J. Ackerman, S.I. Paisley, G.W. Horn, H.T. Purvis II, T.N. Bodine and B.R. Karges
Heavy vs light weight steers grazing old world bluestem at three stocking rates: II.
Diet quality, forage intake, and grazing time
C.J. Ackerman, S.I. Paisley, H.T. Purvis II, G.W. Horn, T.N.Bodine and B.R. Karges
Stocker cattle gains when dewormed with Ivomec SR Bolus® compared with Ivomec Pour-On®
or Ivomec Injectable®
J.D. Wallace, J. Arnold, A.L. Hutson, B.R. Stacey, K.C. Barnes and D.L. Lalman
Supplemental undegradable intake protein for stocker cattle grazing bermuda pasture during spring and early summerD.L. Lalman, S.C. Smith, K.C. Barnes, M.D. Green, T.E. Johnson and M.R. Montague
Urea utilization by cattle fed prairie hay and supplemented with zinc
H.M. Arelovich, F.N. Owens, G.W. Horn and J.A. Vizcarra
Validation of an intraruminal continuous-release chromium device to determine fecal
output in grazing cattle
J.S. Wheeler, D.L. Lalman and G.W. Horn
Wheat pasture intake by early-weaned calves
S.I. Paisley, C.J. Ackerman, H.T. Purvis II and G.W. Horn
Nutrition/Management Swine
Efficacy of Lactose Equivalent-80 (LE-80) as an alternative for lactose in Phase II
nursery diets
C.V. Maxwell, B.Z. de Rodas and K. Brock
Physiology
Comparison of extraction methods for removal of insulin-like growth factor binding
proteins in ovarian follicular fluid samples of cattle
L.J. Spicer and C.S. Chamberlain
Concentrations of GH, IGF-I, and glucose in postnatal beef calves
C.A. Lents, R.P. Wettemann, M.L. Looper, I. Bossis, L.J. Spicer and J.A. Vizcarra
Effects of insulin and luteinizing hormone on ovarian granulosa cell aromatase activity
in cattle
L.J. Spicer
Estrous behavior and time of ovulation in beef cows during the summer
R.P. Wettemann, M.L. Looper. M.L. Warner, T. Prado and G.L. Morgan
Few heifers exhibit reproductive function prior to weaning
M.L. Looper and R.P. Wettemann
Influence of tumor necrosis factor-a on insulin-like growth factor-I binding sites
in thecal cells
L.J. Spicer