Abstract
The aim of this study was to evaluate the relationship between body mass index (BMI), body condition score (BCS), and body energy reserves in Pelibuey ewes. Twenty-four hours before slaughter, withers height (WH) and body length (BL) were measured on 28 ewes. Their BMIs were calculated as follows: BMI=(body weight (kg)/withers height (m)/body length (m))/10. The BMI and BCS showed a correlation coefficient of 0.80 (P<0.05). The regression equation for BMI and BCS had a determination coefficient of 0.64 (RSD: 0.75). The correlation between BMI and the muscle (MUS), internal fat (IF), carcass fat and total body fat (TBF) weights ranged from 0.73 to 0.81 (P<0.05), while the regression equations had an R2 that ranged from 0.54 for IF (RSD: 1.98kg) to 0.60 for carcass fat (CF, RSD: 1.81kg). BMI and body energy reserves showed a positive relationship with each other; therefore, BMI could be used as a predictor of body energy reserves in non-pregnant and non-lactating Pelibuey ewes.
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