2001 Animal Science Research Report


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

August 2001
Publication: P986
Oklahoma Agricultural Experiment Station
Divison of Agricultural Science and Natural Resources
Oklahoma State University


CONTENTS

ANIMAL BREEDING AND GENETICS

1. Evaluation of milk production and calf performance in range beef cows sired by high and low milk expected progeny difference Angus and Hereford bulls
D.S. Buchanan and K.J. Stutts

2. Effect of embryo transfer on semen characteristics and scrotal circumference of performance tested bulls
S.S. Williams and D.S. Buchanan

NUTRITION/MANAGEMENT COW/CALF

3. Supplementation strategies for stockpiled bermudagrass: I. Cow performance
C.R. Johnson, D.L. Lalman, J. Steele, A.D. O'Neil, and R.P. Wettemann

4. Supplementation strategies for stockpiled bermudagrass: II. Forage utilization
C.R. Johnson and D.L. Lalman

5. Economics of a stockpiled bermudagrass grazing system
D.L. Lalman, C.R. Johnson, F.M. Epplin, and C.M. Taliaferro

6. Effect of high vs low cow winter nutrition and calf creep feeding on productivity of fall calving cows and their calves
S.J. Mayo, D.L. Lalman, G.E. Selk, R.P. Wettemann, and D.S. Buchanan

7. Accuracy of nutritive value estimates from fecal NIRS analysis from beef cattle grazing bermudagrass and native tall grass prairie in Oklahoma
A.D. O'Neil, D.L. Lalman, H.T. Purvis II, and S.D. Fuhlendorf

8. Performance of beef heifers fed ad libitum soybean hulls and hay with or without a monensin-containing mineral supplement
J.D. Steele, D.L. Lalman, J.G. Kirkpatrick, and R.P. Wettemann

NUTRITION/MANAGEMENT STOCKER CATTLE

9. Digestibility and estimation of undegradable intake protein (UIP) of alfalfa, bermuda grass and prairie hay using different methods
R.B. Basurto, H.T. Purvis II, T. Bodine, and G.W. Horn

10. Grazing behavior, intake, digestion, and performance by steers grazing dormant native rnage and offered supplemental energy and(or) protein
T.N. Bodine, H.T. Purvis II and D.A. Cox

11. Blood and fecal measures of steers supplemented with energy and(or) protein while grazing dormant native range
T.N. Bodine, H.T. Purvis II and D.A. Cox

12. Effects of a Synovex-S implant during winter grazing
T.N. Bodine, H.T. Purvis II, G.W. Horn, D.A. Cox, C.R. Krehbiel, and M.J. Hersom

13. Effects of previous implant status and rate of gain or implant status during summer grazing on performance of stocker steers
T.N. Bodine, H.T. Purvis II, S.A. Cox, G.W. Horn, and C.R. Krehbiel

14. Response of Old World and Little Bluestem to a spring prescribed fire
T.N. Bodine, H.T. Purvis II, and D.M. Engle

15. In situ starch and nitrogen degradation of feedstuffs for use as supplements to wheat forage
M.J. Hersom and G.W. Horn

16. Management strategies and live weight gain of steers on Old World bluestem
P.D. Kircher, H.T. Purvis II, G.W. Horn, C.J. Ackerman, T.N. Bodine, and D.A. Cox

17. Liquid feed supplements for stocker cattle grazing native and bermudagrass pasture during late summer
D.L. Lalman, K.C. Barnes, F. Sticklen, B.E. Caldwell, D.D. Skidgel, H.T. Purvis II, and C.R. Krehbiel

18. Effect of the frequency of corn supplementation on a high quality alfalfa hay utilization by cattle
A.F. LaManna, H.T. Purvis II, T.N. Bodine, G.W. Horn, and F.N. Owens

19. Implant strategies for lightweight stocker calves
J.D. Wallace, T. Johnson, T. Evicks, S. Smith, and D.L. Lalman

20. Comparison of dry and liquid protein supplements fed to stocker cattle consuming low-quality native grass: Performance and digestibility
J.S. Weyers, H.T. Purvis II, C.R. Krehbiel, D.L. Lalman, and D.A. Cox

NUTRITION/MANAGEMENT FEEDLOT CATTLE

21. Effect of castration on health and performance of newly received stressed feedlot calves
B.A. Berry, W.T. Choat, D.R. Gill, C.R. Krehbiel, R.A. Smith, and R.L. Ball

22. Effect of conventional vs restricted adaptation to a high-concentrate diet on performance and carcass characteristics of feedlot calves
W.T. Choat, C.R. Krehbiel, M.S. Brown, D.R. Gill, and R.L. Ball

23. Effect of vitamin E and fat on serum vitamin E and cholesterol levels of newly received heifer calves
W.T. Choat, C.R. Krehbiel, D.R. Gill, R.L. Ball, J.B. Summers, and L.R. McDowell

24. Effect of implanting on performance and carcass characteristics of finishing steers
W.T. Choat, D.R. Gill, C.R. Krehbiel, J.B. Morgan, J.C. Brooks, and R.L. Ball

25. Feedlot performance of steers from different winter grazing programs
M.J. Hersom, G.W. Horn, and C.R. Krehbiel

26. Effect of liveweight gain during winter on organ mass and organ mass accretion during subsequent feedlot finishing
M.J. Hersom, C.R. Krehbiel, and G.W. Horn

27. Effects of feed additives fed to sale barn-origin calves during the receiving period: Animal performance, health and medical costs
C.R. Krehbiel, B.A. Berry, J.M. Reeves, D.R. Gill, R.A. Smith, D.L. Step, W.T. Choat, and R. Ball

28. Influence of grazing management and supplementation of steers on Old World bluestem on subsequent feedlot performance and carcass merit
P.D. Kircher, H.T. Purvis II, G.W. Horn, C.J. Ackerman, and T.N. Bodine

29. Effect of fall calving cow nutrition and calf creep feeding on subsequent feedlot performance and carcass traits
S.J. Mayo, D.L. Lalman, C.R. Krehbiel, G.E. Selk, and D.R. Gill

30. Effect of health status during the receiving period on subsequent feedlot performance and carcass characteristics
L.J. McBeth, D.R. Gill, C.R. Krehbiel, R.L. Ball, S.S. Swanek, W.T. Choat, and C.E. Markham

31. Extent and rate of in situ ruminal degradaton of protein byproduct feeds on a high concentrate diet
S.S. Swanek, C.R. Krehbiel, D.R. Gill, and B.A. Gardner

NUTRITION/MANAGEMENT HORSES

32. Response of yearling Quarter Horses to varying concentrations of dietary calcium
A.D. Moffett, S.R. Cooper, D.W. Freeman, and H.T. Purvis II

33. Estimation of fecal output and dry matter digestibility using various chromic oxide marker methods in the horse
D.P. Patterson, S.R. Cooper, D.W. Freeman, and R.G. Teeter

NUTRITION/MANAGEMENT POULTRY

34. Effect of endo-ß-D-mannanase (Hemicell®) supplementation on growth performance of two-week-old broilers fed diets varying in ß-mannan content
M. Daskiran and R.G. Teeter

35. Effects of dietary L-carnitine (Carniking®) supplementation on overall performance and carcass characteristics of seven-week-old broiler chickens
M. Daskiran and R.G. Teeter

36. Fasted heat production and body composition of broiler breeder females ranging from 5 to 50 weeks of age
S.J. Dixson and R.G. Teeter

37. Pellet quality effects on broiler growth and efficiency
L.J. McKinney, D.O. Skinner-Noble, and R.G. Teeter

38. Use of a single diet feeding program for female broilers
D.O. Skinner-Noble, J.G. Berry, and R.G. Teeter

NUTRITION/MANAGEMENT SWINE

39. Energy and nitrogen balance of pigs fed four corn grains
R.W. Fent, S.D. Carter, M.J. Rincker, and J.S. Park

40. Energy and nitrogen balance of pigs fed commercial red sorghum, identity-preserved white sorghum, or corn
R.W. Fent, S.D. Carter, M.J. Rincker, and B.W. Senne

41. Effects of Hemicell® supplementation to diets containing soybean hulls on growth performance and carcass characteristics of growing-finishing pigs
J.S. Park, S.D. Carter, R.W. Fent, and M.J. Rincker

42. Effects of Lactobacillus Acidophilus L23 supplementation on growth performance of weanling pigs fed low-lactose diets
J.S. Park, S.D. Carter, M.J. Rincker, R.W. Fent and S.E. Gilliland

43. Effects of L-carnitine in the diet of weanling pigs: I. Growth performance
M.J. Rincker, S.D. Carter, R.W. Fent, B.W. Senne, and K.Q. Owen

44. Effects of L-carnitine in the diet of weanling pigs: II. Apparent nutrient digestibility, whole body composition, and tissue accretion
M.J. Rincker, S.D. Carter, R.W. Fent, B.W. Senne, and K.Q. Owen

45. Effects of L-carnitine and soybean oil on growth performance in weanling pigs
M.J. Rincker, S.D. Carter, R.W. Fent, J.S. Park, and K.Q. Owen

PHYSIOLOGY

46. Postpartum nutrition affects performance of spring-calving first-calf heifers grazing native range
N.H. Ciccioli, C.A. Lents, F.J. White, and R.P. Wettemann

47. Estrous behavior as affected by number of cows in estrus and pen size
L.N. Floyd, C.A. Lents, F.J. White, and R.P. Wettemann

48. Method and timing of castration influences performance of bull calves
C.A. Lents, F.J. White, L.M. Floyd, R.P. Wettemann, and D.L. Gay

49. Effects of heparin and insulin-like growth factor (IGF) binding protein-3 on bovine ovarian granulose and theca cell IGF-I receptors
L.J. Spicer

50. Acutely restricting nutrition causes anovulation and alters endocrine function in beef heifers
F.J. White, L.N. Floyd. C.A. Lents, N.H. Ciccioli, L.J. Spicer, and R.P. Wettemann


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