http://reply.papertrans.cn/2/153/15256/15256-31.png
Submitted on: 18 May 2003.
Revised on: 18 July 2003.
Accepted on: 16 August 2003.
___________________Journal of Animal Science and Biotechnology
http://reply.papertrans.cn/2/153/15256/15256-33.png
http://reply.papertrans.cn/2/153/15256/15256-34.png
http://reply.papertrans.cn/2/153/15256/15256-35.png
Submitted on: 18 November 2004.
Revised on: 15 March 2005.
Accepted on: 30 April 2005.
___________________Journal of Animal Science and Biotechnology