Premium
Autochthonous probiotics Lactococcus lactis and Weissella confusa in the diet of fingerlings great sturgeon, Huso huso : effects on growth performance, feed efficiency, haematological parameters, immune status and intestinal morphology
Author(s) -
Yeganeh Rastekenari Hooshang,
Kazami Rezvanollah,
Shenavar Masouleh Alireza,
Banavreh Akbar,
Najjar Lashgari Saltanat,
Sayed Hassani Mir Hamed,
Ghorbani Vaghei Reza,
Alizadeh Roudposhti Mahdi,
Hallajian Ali
Publication year - 2021
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.15213
Subject(s) - huso , biology , lactococcus lactis , zoology , feed conversion ratio , weissella , beluga , probiotic , lactococcus , sturgeon , microbiology and biotechnology , food science , lactic acid , fishery , fish <actinopterygii> , fermentation , lactobacillus , body weight , bacteria , endocrinology , leuconostoc , genetics
This research evaluated the influences of two autochthonous probiotics Lactococcus lactis and Weissella confusa , on growth performance, feed conversion efficiency, haematological parameters, immune status and intestinal morphology of Huso huso fingerlings. Fingerlings (N: 480; initial weight, 2.92 ± 0.01 g) were randomly dispersed in four treatments (three replicates) and fed with the diet (crude protein 47%) that fortified by autochthonous probiotics Lactococcus lactis and Weissella ciberia (PB 0 : control; PB 1.5 : 1.5 × 10 7 ; PB 3 : 3 × 10 7 ; PB 4.5 : 4.5 × 10 7 ) for 56 days. The results revealed that growth in fish fed probiotics diets were increased compared with the control group. Haematological and blood biochemistry indices did not show any differences between groups ( p > 0.05). The highest value of complement 3 was observed in the PBP 4.5 group ( p < 0.05), while other immunological indices were not significant between treatments ( p > 0.05). Foregut villi height of fish fed with PB 4.5 diet revealed notable differences compared with those of other groups ( p < 0.05). The villi height of PB 3 and PB 4.5 groups were significantly higher than that of the other treatments ( p < 0.05). Taken together, the results of this study showed that the optimum range of autochthonous probiotics were 2.5–2.61 × 107 CFU/g in H . huso fingerlings based on broken‐line regression analysis.