Study on the growth from birth to weaning of Black Bengal goat by fitting exponential model

Abstract

Background: Mathematical models were used to predict values from recorded data and compare with the actual calculation. There were no complete data for taking breeding and nutritional study of BBG in both intensive and semi-intensive conditions. Therefore the research was conducted to determine the growth rate from birth to weaning and fitting exponential model of BBG data in both semi-intensive and extensive systems from January 2022 to July 2022. Method: Data were collected from 9 male goats and 10 female goats in two semi-intensive farms and 5 male goats and 3 female goats from one intensive farm under different feeding regimes. The experimental males and females had their initial and subsequent live weight measured at fortnightly intervals until they reached weaning age. The weaning age happened to be within 4 months in average and was affected by feeding habit and rearing type. The variance of weight gains of same breed under two different farm types during birth to weaning period were studied. The data were fitted in Exponential model and was compared the result with actual value. Result: The average birth weight of Black Bengal goat kids from semi-intensive was slightly higher than intensive farm. Among farms, the female goats’ birth weights were lower than male goats. The weight gain of both male and female goats was positive with age.