The Effect of Excretory/Secretory Product Released by L3 of A. galli on Villous Compact in
Intestine of Laying Hens
1Ummu Balqis, 2Darmawi, 3Risa Tiuria, 4Bambang P. Priosoeryanto, and 5Muhammad Hambal
1Laboratory of Pathology, Faculty of Veterinary Medicine of Syiah Kuala University, Banda Aceh 23111, Indonesia;
2Laboratory of Microbiology, Faculty of Veterinary Medicine of Syiah Kuala University, Banda Aceh 23111, Indonesia;
3Laboratory of Helminthology, Faculty of Veterinary Medicine of Bogor Agriculture Institute, Bogor 16144, Indonesia;
4Laboratory of Pathology, Faculty of Veterinary Medicine of Bogor Agriculture Institute, Bogor 16144, Indonesia;
5Laboratory of Parasitology, Faculty of Veterinary Medicine of Syiah Kuala University, Banda Aceh 23111, Indonesia.
The nematode, Ascaridia galli, caused pathological changes in the gut, while the larval development takes place in the intestine epithelium. The aim of this research was to examine the effect of excretory/secretory product released by L3 of A. galli to prevent intestine destructions based on villous compact in duodenum, jejunum, and ileum of laying hens. Excretory/secretory was prepared from metabolic of L3 released in culture médium in flasks containing rosswell park memorial institute (RPMI) 1640 media, pH 6.8, without phenol red. Excretory/secretory product was concentrated with vivaspin 30.000 MWCO. The chickens vaccinated with 80 µg protein excretory/secretory in crude mixed with Fruend Adjuvant Complete and repeated three times with dose of each 60 µg mixed with Freund Adjuvant Incomplete with an interval of one week intra muscularly. The chickens were challenged with 1000 infective larvae A. galli one week later. After two weeks the chickens were operated. Villous compact in duodenum, jejunum, and ileum of laying hens were analyzed. The result showed that immunization was able to sustained significantly intestine villus compact, particularly in duodenum. This research concluded that the excretory/secretory product could protect villus in duodenum against parasitic diseases caused by A. galli.
Key words:Ascaridia galli, excretory/secretory, hen, villi