Morphometric analysis and prediction of body weight of Marwari bucks under field conditions

Abstract

The aim of the present study was to estimate the different morphometric characters and to devise a prediction equation for estimation of body weight on their basis in Marwari bucks known for its quality chevon and faster growth. The information on different body measurements was collected for Marwari bucks (N=4189) maintained under the ICAR-All India Coordinated Research Project. Least square analysis was carried out to estimate different traits with due consideration for non-genetic factors. Multiple linear regression models with different combination of parameters were tested to find best fit linear regression equation to explain variation in body weight. The results indicate significant and positive correlation coefficients between live weight and other body characteristics at all stages. Heart girth was observed to be an integral component in all prediction equation. Highest coefficient of determination was observed at 6 month age. The study concluded that body measurements could be effectively utilized to predict the body weight of Marwari bucks.