Prediction of body weight from body measurements in grass cutters |
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Authors: | Ifeanyichukwu Udeh Ben-Collins Obiora Okonta |
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Institution: | 1. Department of Animal Science, Delta State University, Asaba Campus, Asaba, Nigeria 2. Department of Forestry and Wildlife, Delta State University, Asaba Campus, Asaba, Nigeria
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Abstract: | In order to predict the body weight of grass cutters from linear body measurements, the weights and measurements of 50 intensively managed female grass cutters aged 5 months were fitted into linear, quadratic and cubic regression models. Highly significant (p?<?0.01) R 2 values ranging from 74 to 98 % were obtained indicating that all body measurements were good predictors of body weight. Although quadratic and cubic models gave slightly higher R 2 values than linear models, it is recommended that farmers should use a simple linear equation based on tail length or heart girth to predict the body weight of their grass cutters. The recommended equations are (weight in kg)?=?0.47?+?0.08 (tail length in cm) and (weight in kg)?=?0.32?+?0.07 (heart girth in cm). |
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