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Behaviour, welfare, husbandry and environment

Effect of constant and of changing photoperiods on age at first egg and related traits in pullets

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Pages 885-894 | Accepted 15 Mar 1996, Published online: 08 Nov 2007

References

  • Lewis , P.D. , Perry , G.C. and Morris , T.R. Effect of timing and size of light increase on sexual maturity in two breeds of domestic hen . Proceedings XIX World's Poultry Congress . Amsterdam. Vol 1 , pp. 689 – 692 .
  • Lewis , P.D. and Perry , G.C. 1995 . “ Effects of lighting on reproduction in poultry ” . In World Animal Science: poultry production , Edited by: Hunton , P. 359 – 388 . Amsterdam : Elsevier .
  • Morris , T.R. The effect of changing daylengths on the reproductive responses of the pullet . Proceedings XII World's Poultry Congress, Symposia Reports . pp. 115 – 124 .
  • Morris , T.R. 1967 . “ Light requirements of the fowl ” . In Environmental control in poultry production , Edited by: Carter , T.C. 15 – 39 . Edinburgh : Oliver & Boyd .
  • Morris , T.R. , Sharp , P.J. and Butler , E.A. 1995 . A test for photorefractoriness in high‐producing stocks of laying pullets . British Poultry Science , 37 : 763 – 769 .
  • Sharp , P.J. 1993 . Photoperiodic control of reproduction in the laying hen . Poultry Science , 72 : 897 – 905 .

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