BONE STRENGHT AND DENSITY of BALINESE AND MADURA’S CATTLE

The aim of this study is to know the strenght and density of balinese cattle and madura’s. A number of 40 sampels from balinese and madura’s cattle femoral bone are used on this research. Balinese cattle femoral bones was obtained from Mambal’s abattoir, Abian Semal, Badung, Bali. While madura’s cattle femoral bones obtained from Bancaran’s abattoir, Bangkalan, Madura, East Java. All colected sample  cleansed from inherent muscle, dryed, and prepared till be ready as object of research. Volumes and mass of bone were measured to know the density mass. The thickness of cortical bone and diameter measured using calipers. Compressive strenght test and scaning electrone microscope (SEM) doing in Faculty of Enginering, Udayana University. The result showed that average spesific gravity of Madura’s Cattle was 1.58 g/mL, it was bigger than balinese cattle (SG= 1.38 g/mL). Average thickness cortical femur of madura’s cattle on the top part was 0.44mm, middle= 1.12mm, and bottom part= 0.43mm. It was thicker than balinese cattle (top cortical thickness= 0.39mm, middle= 0.84mm, and bottom part= 0.34mm). As well as average diameter of diaphysis madura’s femoral bone (4.42 cm²) it was bigger than balinese cattle (3.54cm²). Average strenght of copressive strenght test from madura’s cattle was 53pascal, it was stronger than balinese cattle