References
- Barr , A.J. , Goodnight , J.H. , Sall , J.P. and Helwig , J.T. 1976 . A User's Guide to SAS 76 , North Carolina, Raleigh : SAS Institute .
- Bastian , J.W. and Zarrow , M.X. 1955 . A new hypothesis for the asynchronous ovulatory cycle of the domestic hen(Gallus domesticus) . Poultry Science , 34 : 776 – 788 .
- Fraps , R.M. 1955 . “ Egg production and fertility in poultry ” . In Progress in the Physiology of Farm Animals , Edited by: Hammond , J. 661 – 740 . London : Butterworths .
- Harrison , P.C. 1974 . Spectrum influence on extraretinal control of daily oviposition cycles . Poultry Science , 53 : 560 – 564 .
- Kosin , I.L. and Abplanalp , H. 1951 . The pattern of egg laying in turkeys . Poultry Science , 30 : 168 – 179 .
- Mardia , K.V. 1972 . “ Statistics of Directional Data ” . Edited by: Birnbaum , Z.W. and Lukacs , E. London and New York : Academic Press .
- Payne , L. and Ortman , L. 1956 . Egg production patterns in turkeys . Poultry Science , 35 : 1201 – 1206 .
- Pyrzak , R. and Siopes , T.D. 1986 . Effect of light quality on erratic laying of turkey hens . Poultry Science , 65 : 795 – 800 .
- Stockton , K.L. and Asmundson , V.S. 1950 . Daily rhythm of egg production in turkeys . Poultry Science , 29 : 477 – 479 .
- Wolford , J.H. , Ringer , R.K. and Coleman , T.H. 1964 . Lag time, interval between successive eggs and oviposition time in the turkey . Poultry Science , 43 : 612 – 615 .
- Woodard , A.E. , Wilson , W.O. and Mather , F.B. 1963 . The egg‐laying rhythm of turkeys in cages . Poultry Science , 42 : 1131 – 1133 .
- Requests for reprints should be addressed to Dr Siopes.