Effect of farming patterns on growth, antioxidant activity and nonspecific immunity of loach, Paramisgurnus dabryanus
AQUACULTURE RESEARCH(2022)
Abstract
This study was carried out to compare growth, intestinal enzymes activity, antioxidation and nonspecific immunity of loach between farmed and imitative ecological farming loach, Misgurnus anguillicaudatus. Loach from farmed (average body weight 15.03 +/- 0.36 g) and imitative ecological farming (average body weight 12.44 +/- 0.62 g) population were used to analyse growth, whole-body composition, intestinal enzymes, antioxidant enzymes activity and resistance to bacteria. The results showed specific growth rate, average daily gain and protease, lipase, amylase and gamma-GT activities in intestine and hepatopancreas of farmed loach were significantly higher (p < 0.05) than of imitative ecological farming loach. However, total protein, lysozyme and albumin contents and superoxide dismutase, catalase and glutathione peroxidase activities of imitative ecological farming loach were significantly higher (p < 0.05) than of farmed loach. Moreover, resistance to Aeromonas hydrophila of imitative ecological farming loach was higher than of farmed loach (p < 0.05). Taken together, ecological farming loach possesses higher antioxidant capacity and resistance to bacteria than farmed loach.
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Key words
antioxidant activity,farming patterns,growth,Misgurnus anguillicaudatus,nonspecific immunity
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