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Evaluation of fermented date palm seed meal with Aspergillus oryzae on the growth, digestion capacity and immune response of Nile tilapia (Oreochromis niloticus).
- Source :
-
Aquaculture Nutrition . Jun2020, Vol. 26 Issue 3, p828-841. 14p. - Publication Year :
- 2020
-
Abstract
- Five diets were prepared to include date palm seed meal (DSM) fermented with Aspergillus oryzae (ASP) at 0, 50, 100, 150 and 200 g/kg diet and fed for Nile tilapia (26.93 ± 0.01 g) for 8 weeks. Fermented DSM significantly affected the final weight, weight gain and specific growth rate in a dose‐dependent manner (p =.001) with insignificant differences in feed conversion ratio (p >.05). Dietary fermented DSM significantly increased the lipase, amylase and protease activities (p =.008, p =.001 and p =.01, respectively) and the Hb, RBCs and WBCs (p =.001, p =.005, and p =.009, respectively). The intestinal villus length and number of goblet cells were significantly affected by fermented DSM inclusion (p <.05). Additionally, the total protein, albumin and globulin significantly affected by the inclusion of fermented DSM in a dose‐dependent manner (p =.04, p =.045, and p =.03, respectively). Furthermore, dietary fermented DSM significantly altered the phagocytic index, phagocytic activity and lysozyme activity (p =.001, p =.045 and p =.04, respectively). Based on the polynomial regression analysis, the inclusion of fermented DSM at 103.3–164.8 g/kg diet can be used effectively in tilapia diets for improving the growth, digestion activity and immune response. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13535773
- Volume :
- 26
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Aquaculture Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 143072411
- Full Text :
- https://doi.org/10.1111/anu.13042