J. Appl. Poult. Res.
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J APPL POULT RES 1999. 8:191-194
© 1999 Poultry Science Association
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Research Reports

Changes in the Laying Cycle as a Result of a Phosphorus Deficiency

R. H. Harms and D. R. Sloan

Department of Dairy and Poultry Science, University of Florida, P. O. Box 110920, Gainesville, FL 32611-0920; Phone: (352) 392-1932; FAX: (352) 392-3047

G. D. Butcher

College of Veterinary Medicine, University of Florida, Gainesville, FL

Correspondence: R. H. Harms, E-mail:harms{at}dps.ufl.edu

Two experiments were conducted to define the signs of a phosphorus deficiency in commercial laying hens. A phosphorus deficiency caused a random regression of ovum. This random regression of ovarian follicles could aid in identifying a phosphorus deficiency.

Key Words: Commercial layer • egg cycle • egg production • phosphorus






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