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- Title
Dietary supplementation effects of Pediococcus acidilactici as probiotic on growth performance, digestive enzyme activities and immunity response in zebrafish (Danio rerio).
- Authors
Arani, Mojtaba Mohammadi; Salati, Amir Parviz; Safari, Omid; Keyvanshokooh, Saeed
- Abstract
This study was carried out to assess the effects of Pediococcus acidilactici on zebrafish (Danio rerio). Different levels of P. acidilactici including 0, 1 x 106, 2 x 106, 4 x 106 and 8 x 106 colony-forming unit per g of the diet (cfug-1) were examined in fish with 120 ± 10 mg weight for 60 days in a completely randomized design. The results showed that the best growth indices were recorded in group 4 x 106 cfug-1 (p < 0.05). The highest number of total viable count and lactic acid bacteria of intestine were found in group 4 x 106 cfug-1 (p < 0.05). The maximum activity of digestive enzymes including amylase, lipase, protease and alkaline phosphatase was observed in group 4 x 106 cfug-1. The highest activity for superoxide dismutase was recorded in group 4 x 106 cfug-1 while catalase, glutathione peroxidase and glutathione reductase showed the highest activity in group 8 x 106 cfug-1. The most growth inhibition zone of Aeromonas hydrophylla, Flavobacterium columnare, Vibrio anguillarum and Edwardsiella tarda was found in group 4 x 106 cfug-1 (p < 0.05). Therefore, P. acidilactici as a probiotic improved growth and immunity of the zebrafish and could be used by zebrafish farmers.
- Subjects
DIGESTIVE enzymes; PEDIOCOCCUS acidilactici; ZEBRA danio; LACTIC acid bacteria; VIBRIO anguillarum; GLUTATHIONE reductase
- Publication
Aquaculture Nutrition, 2019, Vol 25, Issue 4, p854
- ISSN
1353-5773
- Publication type
Article
- DOI
10.1111/anu.12904