1998 Animal Science Research Report

Beef and Dairy Cattle, Swine, Poultry, Sheep, Horses and Animal Products

July 1998
Oklahoma Agricultural Experiment Station
Divison 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
  
  

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 summer
  D.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

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