Growth performance, immunity and intestinal microbiota of swamp eel ( Monopterus albus ) fed a diet supplemented with house fly larvae ( Musca domestica )

• DOI: 10.1111/anu.13029
• Publication Date: 2019-12-19T06:44:01Z
• Authors: Jinhua Xiang; Lu Qin; Di Zhao; Fan Xiong; Guitang Wang; Hong Zou; Wenxiang Li; Ming Li; Kaibo Song; Shangong Wu
• Keywords: Housefly; Immunostimulant

Housefly larvae are widely used in livestock breeding industry as a functional feed additive with immunostimulant properties, but their effects dietary poorly understood aquatic animals. We conducted an eight-week rearing experiment to determine the of housefly (complete) on growth performance, immunity and intestinal microbiota swamp eel (Monopterus albus). Dietary treatments were follows: BD (control group, fed basal diet), FL7 (fly supplemented once weekly, i.e., 6-day diet, 1-day larvae) FL3 (larvae every third day, 2-day larvae). The final body weight (FBW) gain (WG) group significantly (p < .05) increased. Hepatosomatic index (HSI) malondialdehyde (MDA) concentration decreased groups. expression immune-related genes was also influenced by fly larvae. Aeromonas hydrophila challenge produced higher survival rates (75%) (37.5%) Fly affected composition gut microbiota: abundance Bacteroides increased, Pseudomonas decreased, treatment supplementation has positive eel, we suggest supplementing day.