Glossary of avian photoperiodic terminology and methods of expressing lighting regimens.
1. A list of definitions is given for terms commonly used in animal photoperiodism. 2. A list of symbols and abbreviations commonly used in avian photoperiodism is included. 3. Methods are given for a standardised description of lighting regimens.
Lewis
P D
PD
Department of Animal Husbandry, University of Bristol, School of Veterinary Science, Langford, England.
Perry
G C
GC
D000818:Animals; D001717:Birds / Q000502:physiology*; D008027:Light; D010507:Periodicity; D009626:Terminology as Topic