Professor

Animal Nutrition; Swine Nutrition

Research Interests

Comprehensive nutritional characterization of feed ingredients in diets of nonruminants is fundamental to our objective of improving the efficiency of lean meat production and minimizing environmental impact.

The research conducted in my laboratory emphasizes amino acid nutrition, utilization of energy, and mineral utilization by nonruminants. The areas of emphasis include nutritional evaluation of feedstuffs, amino acid availability and amino acid-energy relationships, efficiency of amino acid utilization, and mineral metabolism and excretion in pigs, chickens, and ducks. The total program is aimed at improving the efficiency of lean meat production in nonruminant animals and minimizing the flow of potentially detrimental levels of nutrients through animal waste to the environment.

Research Techniques:

• Nutritional evaluation of feed ingredients
• Amino acid utilization
• Feed energy utilization
• Phosphorus utilization
• Feed enzymes

Research Publications:

102) Nyannor, E.K.D. P. Williams, M. R. Bedford, and O. Adeola. 2007. Corn expressing an Escherichia coli-derived phytase gene: A proof-of-concept nutritional study in pigs. J. Anim. Sci. 85:1946-1952.

101) Adeola, O. 2007. Efficiency of methionine retention in White Pekin ducks (Anas platyrinchos domesticus). British Journal of Nutrition 97:478-483.

100) Adedokun, S.A., C.M Parsons, M.S. Lilburn, O.Adeola, and T.J. Applegate. 2007. Standardized ileal amino acid digestibility of meat and bone meal from different sources in broiler chicks and turkey poults with a nitrogen-free or casein diet. Poultry Sci. 86: 2598-2607.

99) Olukosi, O.A., J. S. Sands, and O. Adeola. 2007. Supplementation of carbohydrases or phytase individually or in combination to diets for weanling and growing-finishing pigs. J. Anim. Sci. 85:1702-1711.

98) Adedokun, S.A., C.M Parsons, M.S. Lilburn, O.Adeola, and T.J. Applegate. 2007. Endogenous amino acid flow in broiler chicks is affected by the age of birds and method of estimation Poultry Sci. 86: 2590-2597.

97) Adedokun, S.A., C. M. Parsons, M. S. Lilburn, O. Adeola, T. J. Applegate. 2007. Effect of age, method, and location on ileal endogenous amino acid and total amino acid flows in turkey poults. Poultry Sci. 86: 1948-1954.

96) Sands, J. S., R. N. Dilger, D. Ragland, and O. Adeola. 2007. Ileal amino acid and phosphorus digestibility responses of pigs to microbial phytase supplementation of high-phytin diets. Livestock Sci. 109: 208-211.

95) Olukosi, O. A., A. J. Cowieson, and O. Adeola. 2007. Age-related influence of a cocktail of xylanase, amylase, and protease or phytase individually or in combination in broilers. Poultry Sci. 86: 77-86.

94) Adeola, O., C.M. Nyachoti, and D. Ragland. 2007. Energy and nutrient utilization responses of ducks to enzyme supplementation of soybean meal and wheat. Can. J. Anim. Sci. 87:199-205.

93) Adedokun, S.A., C.M Parsons, M.S. Lilburn, O.Adeola, and T.J. Applegate. 2007. Comparison of ileal endogenous amino acid and total amino acid flow in turkey poults and broiler chicks Poultry Sci. 86:1682-1689.

92) Nyannor, E. K. D., S. A. Adedokun, B.R. Hamaker, G. Ejeta, , and O. Adeola. 2007. Nutritional evaluation of high-digestible sorghum for pigs and broiler chicks. J. Anim. Sci. 85:196-203.

91) Olukosi, O.A. M. R. Bedford, and O. Adeola. 2007. Xylanase in diets for growing pigs and broiler chicks. Can. J. Anim. Sci. 87:227-235.

90) Onyango, E.M., E. A. Asem, and O. Adeola. 2006. Dietary cholecalciferol and P influence intestinal mucosa phytase activity in broiler chicks. British Poultry Science 47:632-639.

89) Nyachoti CM, J. S. Sands, M. L. Connor, and O. Adeola. 2006. Effect of supplementing phytase to corn- or wheat-based diet gestating and lactating diets on nutrient digestibility and sow and litter performance. Can. J. Anim. Sci. 86:501-510.

88) Adeola, O. 2006. Amino acid digestibility in corn, pearl millet, and sorghum for White Pekin ducks Anas platyrinchos domesticus. Journal of Poultry Science 43:357-364.

87) Jendza, J. A., R. N. Dilger, J. S. Sands, and O. Adeola. 2006. Efficacy and equivalency of an Escherichia coli-derived phytase for replacing inorganic phosphorus in the diets of broiler chickens and young pigs. J. Anim. Sci. 84:3364-3374.

86) Adeola, O., O.A. Olukosi, J.A., Jendza, R. N. Dilger, and M.R. Bedford. 2006. Response of growing pigs to Peniophora lycii- and Escherichia coli-derived phytases or varying ratios of calcium to total phosphorus. Anim. Sci. 82:637-644.

85) Cowieson, A.J., D.N. Singh, and O. Adeola. 2006. Prediction of ingredient quality and the effect of a combination of xylanase, amylase, protease and phytase in the diets of broiler chicks. I. Growth performance and digestible nutrient intake. British Poultry Science 47:477-489.

84) Cowieson, A.J., D.N. Singh, and O. Adeola. 2006. Prediction of ingredient quality and the effect of a combination of xylanase, amylase, protease and phytase in the diets of broiler chicks. II. Energy and nutrient utilization. British Poultry Science 47:490-500.

83) Adeola, O. 2006. Review of research in duck nutrient utilization. International Journal of Poultry Science 5:201-218.

82) Dilger, R. N. and O. Adeola. 2006. Estimation of true phosphorus digestibility and endogenous phosphorus loss in growing pigs fed conventional and low-phytate soybean meals. J. Anim. Sci. 84:627-634.

81) Adeola, O. and D. King. 2006. Developmental changes in morphometry of the small intestine and jejunal sucrase activity during the first nine weeks of postnatal growth in pigs. J. Anim. Sci. 84:112-118.

80) Dilger, R. N. and O. Adeola. 2006. Estimation of true phosphorus digestibility and endogenous phosphorus loss in growing chicks fed conventional and low-phytate soybean meals. Poultry Sci. 85:661-668.

79) Cowieson, A.J. and O. Adeola. 2005. Carbohydrases, protease, and phytase have an additive beneficial effect in nutritionally-marginal diets for broiler chicks. Poultry Sci. 84:1860-1867.

78) Adeola, O. 2005. Metabolizable energy and amino acid digestibility of high-oil maize, low-phytate maize and low-phyate soybean meal for White Pekin ducks. British Poultry Sci. 46:607-614.

77) Adedokun, S.A. and O. Adeola. 2005. Metabolizable energy value of meat and bone meal for pigs. J. Anim. Sci. 83:2519-2526.

76) Jendza, J. A., R. N. Dilger, S.A. Adedokun, J. S. Sands, and O. Adeola. 2005. Escherichia coli phytase improves growth performance of starter, grower, and finisher pigs fed phosphorus-deficient diets. J. Anim. Sci. 83:1882-1889.

75) Adedokun, S.A. and O. Adeola. 2005. Apparent energy value of meat and bone meal for White Pekin ducks. Poultry Sci. 84:1539-1546.

74) Onyango, E.M., M.R. Bedford, and O. Adeola. 2005. Phytase activity along the digestive tract of the broiler chick: A comparative study of an Escherichia coli–derived and a Peniophora lycii phytase. Can. J. Anim. Sci. 85:61-68.

73) Onyango, E.M., M.R. Bedford, and O. Adeola. 2005. Efficacy of an Escherichia coli-derived phytase. Poultry Sci. 84:248-255.

72) Schinckel, A.P., O. Adeola, and M.E. Einstein. 2005. Evaluation of alternative nonlinear mixed effects model of duck growth. Poultry Sci. 84:256-264.

71) Adeola, O., J. S. Sands, P.H. Simmins, and H. Schulze. 2004. The efficacy of an E. coli-derived phytase preparation. J. Anim. Sci. 82:2657-2666.

70) Adedokun, S.A., J. S. Sands, and O. Adeola. 2004. Determining the equivalent phosphorus released by an Escherichia coli-derived phytase in broiler chicks. Can. J. Anim. Sci. 84:437-444.

69) Adeola, O. and M.R. Bedford. 2004. Exogenous dietary xylanase ameliorates viscosity-induced antinutritional effects in wheat-based diets for White Pekin ducks (Anas platyrinchos domesticus). British Journal of Nutrition 92:87-94.

68) Dilger, R.N., J.S. Sands, D. Ragland, and O. Adeola. 2004. Digestibility of nitrogen and amino acids in soybean meal with added soy hulls. J. Anim. Sci. 82:715-724.

67) Adeola, O. and J. S. Sands. 2004. Growth performance, bone mineralization, and nutrient retention responses of chicks to dietary crude protein and non-phytate phosphorus concentrations. International Journal of Poultry Science 3:563-569.

66) Dilger, R.N., E.M. Onyango, J.S. Sands, and O. Adeola. 2004. Evaluation of microbial phytase in broiler diets. Poultry Sci. 83:962-970.

65) Onyango, E.M., M.R. Bedford,and O. Adeola. 2004. The yeast production system in which Escherichia Coli phytase is expressed may affect growth performance, bone ash and nutrient utilization in broiler chicks. Poultry Sci. 83:421-427.

64) Nyachoti, C.M., E.M. Onyango, O. Omogbenigun, and O. Adeola. 2004. Nutritional evaluation of pea varieties for ducks. J. Sci. Food Agr. 84:474-480.

63) Norberg, S.E., R.N. Dilger, H. Dong, B.G. Harmon, O. Adeola, and M.A. Latour. 2004. Utilization of energy and amino acids of spry-dried egg, plasma protein, and soybean meal by ducks. Poultry Sci. 83:939-945.

62) Onyango, E.M., P.Y. Hester, R. Stroshine, and O. Adeola. 2003. Bone densitometry as an indicator of percent tibia ash in broiler chicks fed varying dietary calcium and phosphorus levels. Poultry Sci. 82:1787-1791.

61) Adeola, O. 2003. Energy value of feed ingredients for ducks. International Journal of Poultry Science 2:318-323.

60) Ajuwon, K.M., J.L. Kuske, D.B. Anderson, D.L. Hancock, K.L. Houseknecht, O. Adeola, and M.E. Spurlock. 2003. Chronic leptin administration increases serum NEFA in the pig and differentially regulates PPAR expression in adipose tissue. J. Nutr. Biochem. 14:576-583.

59) Adeola, O., J. Ram, D. Maenz, and H.L. Classen. 2003. Putrescine transport in duodenal, jejunal, and ileal brush-border membrane vesicles of chicks. Comp. Biochem. Physiol. 135C:235-247.

58) Ajuwon, K.M., J.L. Kuske, D.M. Ragland, O. Adeola, D.L. Hancock, D.B. Anderson, and M.E. Spurlock. 2003. The regulation of IGF-1 by leptin in the pig is tissue specific and independent of changes n growth hormone. J. Nutr. Biochem. 14:522-530.

57) Adeola, O. and J.S. Sands. 2003. Does supplemental microbial phytase improve amino acid utilization? A perspective that it does not. J. Anim. Sci. 81(E Suppl. 2):E77-E85.

56) Baxter C.A., B.C. Joern, D. Ragland, J. S. Sands, and O. Adeola. 2003. Phytase, high available phosphorus corn and storage effects on phosphorus levels in pig excreta. J. Environ. Qual. 32: 1481-1489.

55) Sands, J.S., D. Ragland, J. Wilcox, and O. Adeola. 2003. Relative bioavailability of phosphorus and retention of nutrients from low-phytate soybean meal for broiler chicks. Can. J. Anim. Sci. 83:95-100.

54) Fan, M.Z., O. Adeola, E.K. Asem, and D. King. 2002. Postnatal ontogeny of kinetics of porcine jejunal brush border membrane-bound alkaline phosphatase, and aminopeptidase N and sucrase activities. Comp. Biochem Physiol. 132A:599-607.

53) Hong, D., H. Burrows, and O. Adeola. 2002. Addition of enzyme to starter and grower diets for ducks. Poultry Sci. 81:1842-1849.

52) Hong, D, D. Ragland, and O. Adeola. 2002. Additivity and associative effects of metabolizable and amino acid digestibilities in corn, soybean meal and wheat red dog for White Pekin ducks. J. Anim. Sci. 80:3222-3229.

51) Lawrence, B.V., A.P. Schinckel, O. Adeola, and K. Cera. 2002. Impact of betaine on pig finishing performance and carcass composition. J. Anim. Sci. 80:475-482.

50) Son, J.H., D. Ragland, and O. Adeola. 2002. Quantification of digesta flow into the ceca. British Poultry Sci. 43:322-324.

49) Ahn, D.J., O. Adeola, and S.S. Nielsen. 2001. Effect of environment on the free and peptide amino acids in rice, wheat, potato and soybeans. J. Life Support Biosphere Sci. 7:311-318.

48) Fan M.Z., O. Adeola, and E.K. Asem. 2001. Estimation of apparent L-amino acid diffusion in porcine jejunal enterocyte brush border membrane vesicles. Physiological Research. 50:373-381.

47) Hong, D, D. Ragland, and O. Adeola. 2001. Additivity and associative effects of metabolizable and amino acid digestibilities in barley and canola meal for White Pekin ducks. Poultry Sci. 80:1600-1606.

46) Sands, J. S., D. Ragland, C. Baxter, B. C. Joern, T. E. Sauber, and O. Adeola. 2001. Phosphorus bioavailability, growth performance, and nutrient balance in pigs fed high available phosphorus corn and phytase. J. Anim. Sci. 79:2134-2142.

45) King, D.E., E.K. Asem, and O. Adeola. 2000. Ontogenetic development of intestinal digestive functions in White Pekin ducks. J. Nutr. 130:57-62.

44) King, D.E., M.Z. Fan, G. Ejeta, E.K. Asem, and O. Adeola. 2000. The effects of tannins on nutrient utilization in the White Pekin duck. British Poultry Sci. 41:630-639.

43) Adeola, O. 1999. Nutrient management procedures to enhance environmental conditions: An introduction. J. Anim. Sci. 77:427-429.

42) Fan, M.Z., O. Adeola, and E.K. Asem. 1999. Characterization of brush-border membrane-bound alkaline phosphatase activity in different segments of the porcine intestine. J. Nutr. Biochem. 10:299-305.

41) Fan, M.Z., O. Adeola, J.J. Turek, and E.K. Asem. 1999. Methodological aspects of measuring amino acid uptake in studies with porcine jejunal brush-border membrane vesicles. Physiol. Res. 48:281-289.

40) Orban, J.I., O. Adeola, and R. Stroshine. 1999. Microbial phytase in finisher diets of White Pekin ducks: Effects on growth performance, plasma phosphorus concentration, and leg bone characteristics. Poultry Sci. 78:366-377.

39) Ragland, D, C.R. Thomas, R.G. Elkin, D.J. Schafer, and O. Adeola. 1999. The influence of cecectomy on metabolizable energy and amino acid digestibility of select feedstuffs for White Pekin ducks. Poultry Sci. 78:707-713.

38) Adeola, O. 1998. Bioavailability of tryptophan in soybean meal and tryptophan retention in the carcasses of four-week-old ducks. Poultry Sci. 77: 1312-1319.

37) Adeola, O., J.I. Orban, D. Ragland, T.R. Cline, and A.L Sutton. 1998. Phytase and cholecalciferol supplementation of low-calcium and low-phosphorus diets for pigs. Can. J. Anim. Sci. 78: 307-313.

36) Fan, M.Z., O. Adeola, M.I. McBurney, and C.I. Cheeseman. 1998. Kinetic analysis of L-glutamine transport into porcine jejunal enterocyte brush-border membrane vesicles. Comp. Biochem. Physiol. (Part A) 121:411-422.

35) Lawrence, B.V., D.B. Anderson, O. Adeola, and T.R. Cline. 1998. Changes in pars esophageal tissue appearance of the porcine stomach in response to transportation, feed deprivation, and diet composition. J. Anim. Sci. 76:788-795.

34) Ragland, D., C.R. Thomas, B.G. Harmon, R. Miller, and O. Adeola. 1998. Nutritional evaluation of two agroindustrial by-products for ducks and pigs. J. Anim. Sci. 76: 2845-2852.

33) Adeola, O., D. Ragland, and D. King. 1997. Feeding and excreta collection techniques in metabolizable energy assays for ducks. Poultry Sci. 76:728-732.

32) Adeola, O., and N. L. Bajjalieh. 1997. Energy value of high-oil corn for pigs. J. Anim. Sci. 75:430-436.

31) King, D., D. Ragland, and O. Adeola. 1997. Apparent and true metabolizable energy values of feedstuffs for ducks. Poultry Sci. 76:1418-1423.

30) Orban, J.I., J.A. Patterson, O. Adeola, A.L. Sutton, and G.N. Richards. 1997. Growth performance and intestinal microbial populations of growing pigs fed diets containing sucrose thermal oligosaccharide caramel. J. Anim. Sci. 75:170-175.

29) Ragland, D., D. King, and O. Adeola. 1997. Determination of metabolizable energy contents of feed ingredients for ducks. Poultry Sci. 76:1287-1291.

28) Adeola, O. 1996. Bioavailability of tryptophan in soybean meal for 10-kg pigs using slope-ratio assay. J. Anim. Sci. 74:2411-2419.

27) Adeola, O. 1995. Dietary lysine and threonine utilization by young pigs: Efficiency for carcass growth. Can. J. Anim. Sci. 75:445-452.

26) Adeola, O. 1995. Digestive utilization of minerals by weanling pigs fed copper- and phytase-supplemented diets. Can. J. Anim. Sci. 75:603-610.

25) Adeola, O., B.V. Lawrence, A.L. Sutton, and T.R. Cline. 1995. Phytase-induced increase in mineral utilization in zinc-supplemented diets for pigs. J. Anim. Sci. 73:3384-3391.

24) Adeola, O., and J.I. Orban. 1995. Chemical composition and nutrient digestibility of pearl millet fed to growing pigs. J. Cereal Sci. 22:177-184.

23) Adeola, O., L.J. Wykes, R.O. Ball, and P.B. Pencharz. 1995. Comparison of oral milk feeding and total parenteral nutrition in neonatal pigs. Nutr. Res. 15:245-265.

22) Lawrence, B.V., O. Adeola, and J.C. Rogler. 1995. Nutrient digestibility and growth performance of pigs fed pearl millet as a replacement for corn. J. Anim. Sci. 73:2026-2032.

21) Adeola, O., B.V. Lawrence, and T.R. Cline. 1994. Availability of amino acids for 10- to 20-kilogram pigs: Lysine and threonine in soybean meal. J. Anim. Sci. 72: 2061-2067.

20) Adeola, O., J.C. Rogler, and T.W. Sullivan. 1994. Pearl millet in diets of White Pekin ducks. Poultry Sci. 73:425-435.

19) Adeola, O. and J.C. Rogler. 1994. Comparative extraction methods for spectro-photometric analysis of uric acid in avian excreta. Arch. Anim. Nutr. 47:1-10.

18) Lawrence, B.V., O. Adeola, and T.R. Cline. 1994. Nitrogen utilization and lean growth performance of 20 to 50-kilogram pigs fed diets balanced for lysine:energy ratio. J. Anim. Sci. 72: 2887-2895.

17) Adeola, O., R.O. Ball, J.D. House, and P.J. O'Brien. 1993. Regional brain neurotransmitter concentration in stress-susceptible pigs. J. Anim. Sci. 71:968-974.

16) Adeola, O., O.O. Balogun, and L.G. Young. 1993. Energy and adipose tissue metabolism in pigs fed at three dietary protein levels from 20 to 60 kg. J. Anim. Physiol. Anim. Nutr. 69:1-11.

15) Hacker, R.R., A. Deschutter, O. Adeola, and T.R. Kasser. 1993. Evaluation of long-term somatotropin implants in finishing pigs. J. Anim. Sci. 71:564-570.

14) Squires E.J., O. Adeola, L.G. Young, and R.R. Hacker. 1993. The role of growth hormones, beta-adrenergic agents, and intact males in pork production: A review. Can. J. Anim. Sci. 73:1-23.

13) Adeola, O., and R.O. Ball. 1992. Hypothalamic neurotransmitter concentrations and meat quality in stressed pigs offered excess dietary tryptophan and tyrosine. J. Anim. Sci. 70:1888-1894.

12) Adeola, O., R.O. Ball, and L.G. Young. 1992. Porcine skeletal muscle myofibrillar protein synthesis is stimulated by ractopamine. J. Nutr. 122:488-495.

11) Adeola, O., B.W. McBride, and L.G. Young. 1992. Metabolic responses induced by isoproterenol in ractopamine-fed pigs. J. Nutr. 122:1280-1286.

10) Adeola, O., E.A. Darko, P. He, and L.G. Young. 1990. Manipulation of porcine carcass composition by ractopamine. J. Anim. Sci. 68:3633-3641.

9) Adeola, O., B.W. McBride, R.O. Ball, and L.G. Young. 1990. Metabolism in adipose tissue and muscle of young pigs. Can. J. Anim. Sci. 70:199-206.

8) Adeola, O., and L.G. Young. 1989. Dietary protein-induced changes in porcine muscle respiration and protein synthesis and adipose tissue metabolism. J. Anim. Sci. 67:664-673.

7) Adeola, O., L.G. Young, B.W. McBride, and R.O. Ball. 1989. In vitro Na+, K+, ATPase (ec 3.6.1.3)-dependent respiration and protein synthesis in skeletal muscle of pigs fed at three dietary protein levels. Brit. J. Nutr. 61:453-465.

6) Adeola, O., J.G. Buchanan-Smith, and R.J. Early. 1988. Gas and high-performance liquid chromatographic analysis of amino acids in soybean meal, corn and triticale. J. Food Biochem. 12:171-181.

5) Balogun, O.O., L.G. Young, O. Adeola, and E. McMillan. 1988. Evaluation of protein and energy values of OAC wintri triticale using cannulated pigs. J. Agric. Food Chem. 36:1233-1235.

4) Lun, A.K., J.A.H.M. Smulders, O. Adeola, and L.G. Young. 1988. Digestibility and acceptability of OAC wintri triticale by growing pigs. Can. J. Anim. Sci. 68:503-510.

3) Adeola, O., L.G. Young, and I. McMillan. 1987. OAC wintri triticale in diets of growing swine. Can. J. Anim. Sci. 67:187-199.

2) Adeola, O., L.G. Young, E.G. McMillan, and E.T. Moran, Jr. 1986. Comparative availability of amino acids in OAC wintri triticale and corn for pigs. J. Anim. Sci. 63:1862-1869.

1) Adeola, O., L.G. Young, E.G. McMillan, and E.T. Moran, Jr. 1986. Comparative protein and energy value of OAC wintri triticale and corn for pigs. J. Anim. Sci. 63:1854-1861.