Non-Linear Regression Models to Predict the Lamb and Sheep Weight Growth
DOI:
https://doi.org/10.3923/pjn.2013.865.869Keywords:
Growth curve, lamb weight, non-linear regression modeling, sheep weightAbstract
The study of living organism growth is the hot issue now a days in biological sciences. In this research, we explore the descriptive analysis of Lamb and Sheep weight growth in Pakistan. Also the non-linear regression models are identified on the basis of model selection criteria’s for lamb and sheep weight growth prediction. From the analysis, we have found that for commercial sheep, spring born lambs and twin born lambs, the best model is the Von Bertalanffy model. While for predicting the weight of male commercial sheep, autumn born and single born lambs, the best model is the Brody model.
References
Arango, J.A. and L.D. van Vleck, 2002. Size of beef cows: Early ideas, new developments. Genet. Mol. Res., 1: 51-63.
Behzadi, M.R.B. and A.A. Aslaminejad, 2010. A comparison of neural network and nonlinear regression predictions of sheep growth. J. Anim. Vet. Adv., 9: 2128-2131.
von Bertalanffy, L., 1957. Quantitative laws in metabolism and growth. Q. Rev. Biol., 32: 217-231.
Gbangboche, A.B., R. Glele-Kakai, S. Salifou, L.G. Albuquerque and P.L. Leroy, 2008. Comparison of non-linear growth models to describe the growth curve in West African dwarf sheep. Animal, 2: 1003-1012.
Gompertz, B., 1825. On the nature of the function expressive of the law of human mortality and on a new mode of determining the value of life contingencies. Philos. Trans. R. Soc. London, 115: 513-585.
Gurcan, E.K., O. Cobanoglu and S. Genc, 2012. Determination of body weight-age relationship by non-linear models in Japanese quail. J. Anim. Vet. Adv., 11: 314-317.
Kucuk, M. and E. Eyduran, 2009. The determination of the best growth model for akkaraman and german blackheaded mutton x akkaraman crossbreed (B1) lambs. Bulgarian J. Agric. Sci., 15: 90-92.
Lambe, N.R., E.A. Navajas, G. Simm and L. Bunger, 2006. A genetic investigation of various growth models to describe growth of lambs of two contrasting breeds. J. Anim. Sci., 84: 2642-2654.
Lancelot, R., M. Lesnoff, E. Tillard and J.J. McDermott, 2000. Graphical approaches to support the analysis of linear-multilevel models of latib pre-weaning growth in Kolda (Senegal). Preventing Vet. Med., 46: 225-247.
Ozdemir, H. and G. Dellal, 2009. Determination of growth curves in young Angora goats. Tarim Bilimleri Gergisi, 15: 358-362.
Tariq, M.M., M.A. Bajwa, A. Waheed, E. Eyduran, F. Abbas, F.A. Bokhari and A. Akbar, 2011. Growth curve in mengali sheep breed of Balochistan. J. Anim. Plant Sci., 21: 5-7.
Ulutas, Z., M. Sezer, Y. Aksoy, E. Sirin, U. Sen, M. Kuran and Y. Akbas, 2010. The effect of birth types on growth curve parameters of Karayaka lamb. J. Anim. Vet. Adv., 9: 1384-1388.
Wildeus, S., 1997. Hair sheep genetic resources and their contribution to diversified small ruminant production in the United States. J. Anim. Sci., 75: 630-640.
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