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This study was carried to compare amino acids content, muscle cellularity, and flesh quality between farmed and imitative ecological farming loach, Misgurnus anguillicaudatus. Loach from farmed (average body weight 15.03 ± 0.36 g, average body length 13.41 ± 0.17 cm) and imitative ecological farming population (average body weight 12.44 ± 0.62 g, average body length 13.80 ± 0.26 cm) were used to analyze growth, body parameters, muscle composition, texture characteristics, amino acids content, relationship between muscle cellularity and textural parameters, and myogenic regulatory factors expression. The results showed the final weight, condition factor, hepatosomatic index and viscera index of farmed loach were significantly higher (p

This study aimed to compare the intestinal morphology, barrier function, and digestive and absorptive function of normal and injured intestines in Cyprinus carpio var. Jian. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used for gene expression analysis, and the results were correlated with intestinal morphology and plasma biochemical parameters. The normal fish intestine was filled with chyme. Furthermore, the intestine surface was glossy and intact, and no gaps were observed in the tight junction structure (TJ). The amount of chyme in the injured intestine, however, was negligible. The wall of the injured intestine thinned and started to dissolve. Furthermore, hyperemia was observed in the injured intestine, and gaps were evident in the TJ structure of the injured intestinal mucosa. The levels of both diamine oxidase and D-lactate in the injured intestine were significantly higher than those in the normal intestine (p