Abstract: An experiment on ten sorghum cultivars with respect to growth and feed quality was carried out at Khon Kaen University Farm during rainy season of 1996. The experiment was laid in a randomised complete block design with four replications. The plant samples were taken at days 90 and 160 after emergence. The plant materials were used for the determinations of dry matter yield per plant, extractable juice concentration, crude protein (CP), neutral and acid detergent fibre contents (NDF and ADF) and dry matter degradability (DMD). The results showed that with the first cutting, the first three highest dry matter yield were with Rio, IS 23585, and E 35-1 whilst Suphan Buri 1, UT 470-2 and U-Thong 1 gave the highest extractable juice concentration. All cultivars gave CP content not exceeded 7 per cent and the first four lowest cultivars for NDF and ADF contents were with IS 23585, PB 12891, Suphan Buri 1 and Rio. The contents of CP, NDF, and ADF of the second cutting were lesser than the first cutting. The highest values of DMD were found with E 35-1, UT 470-2, and Suphan Buri 1 for the first cutting whilst the second cutting was with Rio, IS 23585, UT 538-B, PB 12891 and E 35-1. Out of the ten sorghum cultivars being used, IS 23585 and Rio could be considered as the best cultivars for feed stuffs of ruminant animals.