Submitted on: 09 January 2002.
Revised on: 04 February 2002.
Accepted on: 24 February 2002.
___________________European Poultry Science---EUGEN ULMER GMBH CO
Submitted on: 25 August 2020.
Revised on: 08 November 2020.
Accepted on: 27 November 2020.
___________________European Poultry Science---EUGEN ULMER GMBH CO
Submitted on: 03 February 2004.
Revised on: 30 March 2004.
Accepted on: 11 April 2004.
___________________European Poultry Science---EUGEN ULMER GMBH CO
Submitted on: 30 April 1998.
Revised on: 13 July 1998.
Accepted on: 28 July 1998.
___________________European Poultry Science---EUGEN ULMER GMBH CO
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http://reply.papertrans.cn/1/94/9369/9369-16.png
Submitted on: 13 July 2016.
Revised on: 31 October 2016.
Accepted on: 20 November 2016.
___________________European Poultry Science---EUGEN ULMER GMBH CO
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http://reply.papertrans.cn/1/94/9369/9369-19.png
Submitted on: 30 August 2019.
Revised on: 29 October 2019.
Accepted on: 28 November 2019.
___________________European Poultry Science---EUGEN ULMER GMBH CO