The intake of sulphur offered in different forms was observed in ten ewes of Merino breed during one year. Four sources of sulphur were used: ammonium sulphate, sodium sulphate, calcium sulphate and sulphur. The effect of season (sprihg, summer, autumn and winter) and a phase of reproduction cycle (gestation, lactation, barren period) on the consumption of various sulphur sources were analysed. Significant differences in the intake of sulphur were found in summer, winter (both p<0.01) and autumn (p<0.05) and non-significant differences in spring. A phase of reproduction also affected the intake of sulphur; significant differences were found during gestation, barren period (both p<0.01) and lactation (p<0.05).