Flexible alternatives to the gompertz equation for describing growth with age in turkey hens

Poultry Science

Volumn 89, Issue 2, 2010, Pages 371-378

  Porter, T ^a   Kebreab, E ^b   Darmani Kuhi, H ^c   Lopez, S ^d   Strathe, A B ^e   France, J ^a  

^a UNIVERSITY OF GUELPH   (Canada)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c UNIVERSITY OF GUILAN   (Iran)

^d UNIVERSITY OF LEÓN   (Spain)

^e UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

Growth; Modeling; Repeated measure; Turkey hen

Indexed keywords

EID: 74349122368     PISSN: 00325791     EISSN: 15253171     Source Type: Journal    
DOI: 10.3382/ps.2009-00141     Document Type: Article

References (21)

1. Bowmaker, J. E., and R. M. Gous. 1989. Quantification of reproductive changes and nutrient requirements of broiler pullet at sexual maturity. Br. Poult. Sci. 30:663-675.
2. Darmani Kuhi, H., E. Kebreab, S. Lopez, and J. France. 2002. A derivation and evaluation of the von Bertalanffy equation for describing growth in broilers over time. J. Anim. Feed Sci. 11:109-125.
3. Darmani Kuhi, H., E. Kebreab, S. Lopez, and J. France. 2003a. An evaluation of different growth functions for describing the profile of live weight with time (age) in meat and egg strains of chicken. Poult. Sci. 82:1536-1543.
4. Darmani Kuhi, H., E. Kebreab, S. Lopez, and J. France. 2003b. A comparative evaluation of functions for the analysis of growth in male broilers. J. Agric. Sci. Camb. 140:451-459.
5. Gompertz, B. 1825. On the nature of the function expressive of the law of human mortality, and on a new method of determining the value of life contingencies. Phil. Trans. R. Soc. 36:513-585.
6. Hancock, C. E., G. D. Bradford, G. C. Emmans, and R. M. Gous. 1995. The evaluation of the growth parameters of six strains of commercial broiler chickens. Br. Poult. Sci. 36:247-264.
7. Leeson, S., and J. D. Summers. 2001. Nutrition of the Chicken. University Books, Guelph, Ontario, Canada.
8. Lister, D., T. Cowen, and R. A. Mccance. 1966. Severe under-nutrition in growing and adult animals. Br. J. Nutr. 20:633-639.
9. Littell, R. C., G. A. Milliken, W. W. Stroup, R. D. Wolfinger, and O. Schabenberger. 2006. SAS System for Mixed Models. 2nd ed. SAS Inst. Inc., Cary, NC.
10. Lopez, S., J. France, M. S. Dhanoa, F. Mould, and J. Dijkstra. 2000. A generalized Michaelis-Menten equation for the analysis of growth. J. Anim. Sci. 78:1816-1828.
11. Motulsky, H. J., and L. A. Ransnas. 1987. Fitting curves to data using nonlinear regression: A practical and nonmathematical review. FASEB J. 1:365-374.
12. Oehlert, G. W. 1992. A note on the delta method. Am. Stat. 46:27-29.
13. Pinheiro, J., and D. M. Bates. 2000. Mixed Effects Models in S and S-PLUS. Statistics and Computing. Springer, New York, NY.
14. Richards, F. J. 1959. A flexible growth function for empirical use. J. Exp. Bot. 10:290-300.
15. Ricklefs, R. E. 1967. A graphical method of fitting equations to growth curves. J. Ecol. 48:978-983.
16. Ricklefs, R. E. 1985. Modification of growth and development of muscles in poultry. Poult. Sci. 64:1563-1576.
17. SAS. 2000. SAS/STAT User's Guide. Version 8 ed. SAS Inst. Inc., Cary, NC.
18. Thornley, J. H. M., and J. France. 2007. Pages 136-169 in Mathematical Models in Agriculture. 2nd ed. CABI Publ., Wallingford, UK.
19. von Bertalanffy, L. 1957. Quantitative laws for metabolism and growth. Q. Rev. Biol. 32:217-231.
20. Wang, Z., and M. J. Zuidhof. 2004. Estimation of growth parameters using a nonlinear mixed Gompertz model. Poult. Sci. 83:847-852.
21. Wiseman, J., and C. E. Lewis. 1998. Influence of dietary energy and nutrient concentration on the growth of body weight and of carcass components of broiler chickens. J. Agric. Sci. Camb. 131:361-371.