RECENT TRENDS IN EGG PRODUCTION OF ASSAM

Abstract

ABSTRACT
Secondary data on egg production from local and improved birds in the state of
Assam for the period from 1995 to 2008 were collected from State Directorate of Animal
Husbandry and Veterinary Assam, Guwahati. Models viz. linear, quadratic, cubic and
exponential were fitted to the yearly data for the period under reference. The cubic model
revealed positive growth of local egg production with high co-efficient of determination (R2 =
0.96) followed by Quadratic model (R2 = 0.956), exponential model (R2 = 0.956) and linear
model (R2 = 0.952). In case of improved egg production also, cubic model could explain
highest percentage of variation (R2 = 0.896) amongst all the models with negative growth
rate. Further, for overall egg production also cubic model was found to be best fit with high
co-efficient of determination (R2 = 0.815) in the state during the study period. The negative
correlation co-efficient of the production series (0.85) indicated the need of restructure
production policy in favour of arresting negative growth of improved eggs, increase
production and sustain the growth rates.
Key Words : Coefficient of determination, linear model, Quadratic model , Cubic model,
exponential model.