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D. A. Roland

University of Alabama

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Featured researches published by D. A. Roland.

Poultry Science | 1997

Performance of commercial laying hens fed various phosphorus levels, with and without supplemental phytase

Rw Gordon; D. A. Roland

Poultry Science | 2005

Effect of dietary energy on performance and egg composition of Bovans White and Dekalb White hens during phase I

G. Wu; M. M. Bryant; R. A. Voitle; D. A. Roland

Poultry Science | 1993

Influence of Large Doses of Ascorbic Acid on Performance, Plasma Calcium, Bone Characteristics, and Eggshell Quality in Broilers and Leghorn Hens

J. I. Orban; D. A. Roland; K. Cummins; R. T. Lovell

Poultry Science | 1988

Research Note: Egg Shell Problems: Estimates of Incidence and Economic Impact

D. A. Roland

Poultry Science | 1999

Influence of supplemental microbial phytase on first cycle laying hens fed phosphorus-deficient diets from day one of age

S Punna; D. A. Roland

Poultry Science | 1996

Influence of Calcium and Environmental Temperature on Performance of First-Cycle (Phase 1) Commercial Leghorns

D. A. Roland; M. M. Bryant; H. W. Rabon; J. Self

Journal of Applied Poultry Research | 2003

Influence of Dietary Fat on Economic Returns of Commercial Leghorns

S. S. Sohail; M. M. Bryant; D. A. Roland

Poultry Science | 2002

Influence of Dietary Phosphorus on Performance of Hy-Line W36 Hens

S. S. Sohail; D. A. Roland

Poultry Science | 1991

The Influence of Various Calcium and Phosphoras Levels on Tibia Strength and Eggshell Quality of Pullets During Peak Production

T. J. Frost; D. A. Roland

Poultry Science | 1990

Influence of Vitamin D3, 1α-Hydroxyvitamin D3, and 1,25-Dihydroxyvitamin D3 on Eggshell Quality, Tibia Strength, and Various Production Parameters in Commercial Laying Hens

T. J. Frost; D. A. Roland; G. G. Untawale

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M. M. Bryant

University of Alabama

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G. Wu

Auburn University

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H. W. Rabon

University of Alabama

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J. I. Orban

University of Alabama

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M. Farmer

University of Alabama

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S. S. Sohail

University of Alabama

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Shivaram K. Rao

University of Alabama

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T. J. Frost

University of Alabama

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D. G. Barnes

Ethyl Corporation

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John A. McGUIRE

University of Alabama

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