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Indian Journal of Animal Research, volume 41 issue 3 (september 2007) : 184 - 187

SOME ALTERNATIVE FORMS OF LOGISTIC-CURVILINEAR MODEL FOR POULTRY EGG PRODUCTION CURVES

Shiv Prasad, D.P. Singh*

Affiliations

¹Division of Livestock Economics, Statistics and Information Technology, Indian Veterinary Research Institute, Izatnagar - 243 122, India

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Cite article:- Prasad Shiv, Singh* D.P. (2024). SOME ALTERNATIVE FORMS OF LOGISTIC-CURVILINEAR MODEL FOR POULTRY EGG PRODUCTION CURVES. Indian Journal of Animal Research. 41(3): 184 - 187. doi: .

ABSTRACT

Two alternative forms of logistic-curvilinear model to describe the poultry egg production
curve were proposed and compared with 7 existing models viz., compartment, logistic - curvilinear, gamma type, McNally modified gamma type, Adams-Bell, double compartment and linear logistic on the basis of 4-weekly egg production records from 20th to 72nd week of age of Aseel x CARI Redmaintained at Central Avian Research Institute, Izatnagar. The proposed model Nt = a e-bt /(1 + c e-dt + f/t) + εt was found best among these models to describe egg production curve and has
shown higher predictability power of total egg production records with partial records.

KEYWORDS

REFERENCES

Adams, C.J. and Bell, D.D. (1980). Poultry Sci., 59: 937-938.
Cason, J.A. and Britton, W.M. (1988). Poultry Sci., 67: 213-218.
Cason, J.A. and Ware, G.O. (1990). Poultry Sci., 69: 1064-1069.
Gavora, J.S. et al. (1971). Poultry Sci., 50: 1306-1315.
McMillan, I. (1981). Poultry Sci., 60: 1549-1551.
McMillan, I. et al. (1970). Theoretical Genet., 65: 349-353.
McMillan, I. et al. (1986). Poultry Sci., 65: 817-822.
McNally, D.H. (1971). Biometrics, 27: 735-738.
Motulskey, H.J. and Ransnas, L.A. (1987). FASEB J., 1: 365-371.
Wood, P.D.P. (1967). Nature, 216: 164-165.

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SOME ALTERNATIVE FORMS OF LOGISTIC-CURVILINEAR MODEL FOR POULTRY EGG PRODUCTION CURVES

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