The placenta anatomy of sunda porcupine (Hystrix javanica)

Abstract

Sunda porcupines (Hystrix javanica) belongs to the Order of Rodentia is an endemic animal of Indonesia. The aims of this study are to determine the types and histological structure of Sunda porcupine placenta. Data regarding the type and histological structure of Sunda porcupines' placental organs can be used to support the conservation of Sunda porcupines. This research used two samples of placenta Sunda Porcupine from Ngawi, East Java. Placenta were fixed in Bouin's solution for 24 hours. Tissues were processed by using paraffin method and cut in 5 μm thickness. Tissues slide were stained with Hematoxylin Eosin (HE) to identified histological structure of the Sunda porcupine placenta. Photomicrographs were using Optilab Image Viewer. The histological structure of the Sunda porcupine's placenta were analyzed and reported descriptively. Macroscopically, the shape of Sunda Porcupine placenta is flat like a disc. Histologically, the thickest parts of Sunda porcupines placenta consist of chorioallantoic plate, labyrinth zone, trophospongium, decidua, metrial glands, myometrium zone. In conclussion, the placenta of sunda porcupine (Hystrix javanica) has been identified which has a discoid shape and is classified to the hemochorial type.