Ultrastructural Morphology Comparison of Raillietina echinobothrida and Raillietina tetragona In Native Chickens at Sidoarjo Regency Using Scanning Electron Microscope (SEM)

This study aimed to compare the ultrastructural morphology of Raillietina echinobothrida and Raillietina tetragona that infected the small intestine of native chickens (Gallus domesticus) obtained from various traditional markets in Sidoarjo Regency. The samples used in this research were 57 small intestines of native chickens (Gallus domesticus) sold at Tulangan, Wonoayu, Larangan, Krian, and Suko Market. The samples were macroscopic and microscopically examined using Scanning Electron Microscope (SEM). The result showed that Raillietina echinobothrida with prevalence of 57.89% has a yellowish string-like body (length 16-23 cm) with a round scolex (0.27-0.3 mm in diameter), round sucker (0.07x0.08-0.08x0.09 mm in size), rostellum armed with hooks has size of 0.06x0.07-0.08x0.1 mm, and unsegmented, thick, and short neck. Meanwhile Raillietina tetragona showed prevalence of 29.05%, also has a yellowish string-like body (length 20-28 cm) with an oval scolex (0.16-0.2 mm in diameter), oval sucker (0.04x0.09-0.05x0.01 mm in size), rostellum armed with hooks has the size of 0.03x0.05-0.04x0.06 mm, and unsegmented, thin, and long neck. The surface body of both Raillietina echinobothrida and Raillietina tetragona has a soft and velvety texture.