STUDY ON MATHEMATICAL MODELS OF EGG PRODUCTION CURVE IN JINYUN DUCKS

Hai-Yan Chen (P. R. China), Yuan-Ming Chen (P. R. China) and Wei-Cheng Ye (P. R. China)

Received February 26, 2008

References:

[1] X. Chen, Origin 6.0 Cases 8(000). [2] G. X. Gan, Chinese J. Animal and Veterinary Sciences 14 (1983), 177. [3] J. E. Gavora, Poultry Science 23 (1982), 339. [4] I. McMillan, Poultry Science 60 (1981), 1549. [5] X. W. Shi, J. Yunnan Agricultural University 8 (1993), 31. [6] J. Y. Sun, J. Biomathematics 14 (1999), 501. [7] K. L. Wu and Y. M. Zhang, Chinese J. Animal and Veterinary Sciences 27 (1995), 51. [8] N. Yang and C. H. Shan, Modern manufactures for raising chicken, 1994, 43.

Keywords and phrases: Jinyun ducks, mathematical model, fitting effect.