Body condition score has been shown to be highly correlated to the degree of body fatness in slaughtering experiments involving a pre-established range of body condition score in sheep at the same physiological stage,but there is a lack of evidence in animals at different physiological conditions. The aim of the present work was to evaluate the usefulness of subjectively assessed body condition score to predict the proportion of chemical fat in the body of Romanov x Rasa ewes at different stages of their reproductive cycle. An adaptation of Russel et al.(1969) condition scoring system was used in wich animals were scored on a 0 to 5 scale to the nearest 0.25 condition unit.