Abstract
AbstractThe performance, efficiency of consumed feed, body chemical composition, survival rate, antioxidant and immunity parameters of Nile tilapia (Oreochromis niloticus) reared in probiotic-treated water were studied. Two hundred apparently healthy Nile tilapia (20 ± 0.3 g) juveniles were reared for 70 days in five different treatments, with five replications as the control group (clean water) and four test groups with two probiotics strains (Bacillus toyonensisandGeobacillus stearothermophilus) at two different levels (1 or 2 × 105 CFU ml−1) applied in rearing water. Fish reared in water supplemented withG. stearothermophilusat low level demonstrated significantly enhanced (p < 0.05) growth performances in terms of final body weight (FBW), weight gain (WG), daily weight gain (DWG), specific growth rate (SGR), and relative growth rate (RGR) compared to the control group. In the same context, supplied fish rearing water a lower amount ofG. stearothermophilus(GS1) remarkedly reduced feed conversion ratio values when compared to the control group. In contrary, all other feed efficiency parameters increased significantly whenG. stearothermophilus(GS1) water was added at low amount in the compartment with the untreated group. Moreover, probiotic water additives significantly reduced the range and median levels of unionized ammonia (NH3) in water when compared to the untreated group. According to the findings of the body chemical composition, treated tilapia water with a high level ofB. toyonensishad significantly higher crude protein and fat levels, as well as lower ash levels, than the control group.When compared to the control group, probiotic-water supplementation significantly improved oxidative status and immunological activity at all bacterial dosage levels, with the fish group enriched with a high level ofG. stearothermophilusrecording the maximum values of both antioxidant and immune activity.Finally, results reveal that water treated withB. toyonensisorG. stearothermophilusas a probiotic promoted Nile tilapia growth and health status, and this technology may be applied to stimulate tilapia productivity in culture farms.
Publisher
Springer Science and Business Media LLC
Subject
Water Science and Technology
Reference72 articles.
1. Abdel-Latif HM, El-Ashram S, Yilmaz S, Naiel MA, Kari ZA, Hamid NKA, Dawood MA, Nowosad J, Kucharczyk D (2022) The effectiveness of Arthrospira platensis and microalgae in relieving stressful conditions affecting finfish and shellfish species: an overview. Aquac Rep 24:101135
2. Adeshina I, Jenyo-Oni A, Emikpe B (2016) Use of eugenia cayrophyllata oil as anaesthetic in farm raised African catfish Clarias gariepinus juveniles. Egypt J Exp Biol (zool) 12:71–76
3. Adorian TJ, Jamali H, Farsani HG, Darvishi P, Hasanpour S, Bagheri T, Roozbehfar R (2019) Effects of probiotic bacteria Bacillus on growth performance, digestive enzyme activity, and hematological parameters of Asian sea bass, Lates calcarifer (Bloch). Probiotics Antimicrob Proteins 11:248–255
4. Aebi H (1984) [13] Catalase in vitro. Methods Enzymol 105:121–126
5. Ahmed N, Thompson S, Glaser M (2019) Global aquaculture productivity, environmental sustainability, and climate change adaptability. Environ Manage 63:159–172