Submitted on: 29 August 2003.
Revised on: 04 November 2003.
Accepted on: 19 November 2003.
___________________European Poultry Science---EUGEN ULMER GMBH CO
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Submitted on: 07 October 2022.
Revised on: 25 January 2023.
Accepted on: 15 March 2023.
___________________European Poultry Science---EUGEN ULMER GMBH CO
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Submitted on: 16 October 2000.
Revised on: 27 January 2001.
Accepted on: 08 February 2001.
___________________European Poultry Science---EUGEN ULMER GMBH CO
Submitted on: 03 November 2020.
Revised on: 26 December 2020.
Accepted on: 06 February 2021.
___________________European Poultry Science---EUGEN ULMER GMBH CO
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Submitted on: 31 July 1999.
Revised on: 05 October 1999.
Accepted on: 08 November 1999.
___________________European Poultry Science---EUGEN ULMER GMBH CO