Eight cows grazing star grass (Cynodon nlemfluensis) were divided into four supplement treatments: Control 3 kg/day soyabean meal/sorghum supplement (16% CP), HP: High protein (2 kg soyabean meal 1 kg sorghum 31.5% CP), HE: High energy (1 kg sorghum 2 kg Ca-soap) and HPE: High protein-High energy (2 kg Ca-soap, 1 kg soyabean meal). Treatments were balanced in two 4 × 4 latin squares groups as cows received or not supplement during the dry period (3 kg 18% CP). Milk secretion rate and efficiency was not affected by treatment. However, supplementation during the dry period increased milk protein and lactose concentration. Protein and lactose secretion rate and udder efficiency were also increased.