IDENTIFICATION OF Amidostomum sp. IN GIZZARD OF MUSCOVY DUCK (Cairina moschata) IN NGANJUK SUB-DISTRICT USING SCANNING ELECTRON MICROSCOPY (SEM)

The aim of this research was to identify the species of Amidostomum sp. in gizzard of Muscovy duck in Nganjuk. This research was conducted from March-July 2019 and sample were gotten from Nganjuk traditional market. Totally 42 samples of gizzard were examined in this study. The examination was done by Scanning Electron Microscopy (SEM) as the main processed and Semichon’s acetic carmine stained for supporting processed. Six birds (14.28%) were positively infected by Amidostomum sp. in gizzard, specifically in lumen mixed with digestible food. Gross appearance showed elongated round shape and transparent to creamy white color. Their length was about 20-35 mm and 0.4-0.6 mm wide. Detail anterior and posterior structure has been found. Buccal capsule (137.03 μm wide), buccal cavity, esophageal teeth (54.98 μm long), long-muscularly and curved esophagus (378.10 μm long), vulva area (45 μm long, 11.1 μm wide) and digitate structure behind it as main identical structure in female worms, the distance from vulva to tail was 91.90 μm. Striated transverse cuticle along the body also appear with unique longitudinal depressed structure from head to tail