Comparing the effects of dietary selenium and mannan oligosaccharide supplementation on the growth, immune function, and antioxidant enzyme activity in the cultured marron Cherax cainii (Austin, 2002)

摘要: This study was conducted to compare the effects of dietary supplementation selenium (Se, both inorganic and organic) mannan oligosaccharide (MOS) on growth, immune function, antioxidant enzyme activities in haemolymph marron Cherax cainii (Austin, 2002); 0.4 mg kg−1 sodium selenate, 0.2 g kg−1 Sel-Plex®, or 0.4 % Bio-MOS® added basal diet as sources (IS), organic (OS), MOS, respectively. After 90 days, fed all 3 supplemented test diets had significantly higher final weight, specific growth rate (SGR), survival, total haemocyte count (THC), percentage hyaline cells, glutathione-S-transferase (GST), glutathione peroxidase (GPx) than without any supplements. The OS showed THC cells those IS MOS. Marron MOS highest SGR, granular cells; however, there no significant difference neutral red time retention between OS, whereas resulted GPx activity Se levels but lowest lipid activity; therefore, it is suggested that with source beneficial improving activity.