Effects of feeding regimen of dietary<i>Aspergillus oryzae</i>on the growth performance, intestinal morphometry and blood profile of Nile tilapia (<i>Oreochromis niloticus</i>)

Dawood, Mahmoud A.O.; Eweedah, Nabil M.; Moustafa, Eman M.; Shahin, Mohamed Gamal

doi:10.1111/anu.12923

Cited by 25 publications

(16 citation statements)

References 56 publications

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“…In this study, S. cerevisiae type 1 showed a similar mechanism, increasing the secretion of extracellular enzymes, especially proteases and amylases, which might have improved nutrient digestibility, leading to improved growth performance and feed efficiency in red sea bream. Similar observations have also been documented for other fish species, which exhibited increased feed utilization with probiotic-based diets (Dawood et al, 2019c;Talpur et al, 2014).…”

Section: Discussionsupporting

confidence: 85%

Singular effects of Bacillus subtilis C-3102 or Saccharomyces cerevisiae type 1 on the growth, gut morphology, immunity, and stress resistance of red sea bream (Pagrus major)

Zaineldin

Hegazi

Koshio

et al. 2021

Annals of Animal Science

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The beneficial effects of Bacillus subtilis C-3102 and Saccharomyces cerevisiae type 1 were tested in red sea bream (Pagrus major) feeds. A basal diet (control) and two other diets were prepared by supplementation with B. subtilis C-3102 (PB) or S. cerevisiae type 1 (PY). After 60 days, both probiotic-supplemented groups exhibited significant enhancement in growth performance, the protein efficiency ratio (PER), and digestive enzyme secretion (protease and amylase) compared to the control group (P<0.05). The anterior, middle, and posterior parts of the intestines exhibited significantly increased values of intestinal fold height (hF), enterocyte height (hE), and microvillus height (hMV) in fish fed PB- or PY-supplemented diets (P<0.05). Serum peroxidase, anti-protease, and bactericidal activities were enhanced significantly in both probiotic-treated groups compared to the control group (P<0.05). Serum and mucus lysozyme activities improved significantly in the PB group compared to the control group (P<0.05). Catalase activity was also significantly decreased in both probiotic groups, with relatively lower activity observed in the PY group (P<0.05). Both probiotic groups showed increased tolerance considerably to freshwater exposure (P<0.05). In conclusion, B. subtilis C-3102 and S. cerevisiae type 1 can be used as functional probiotics to enhance the growth performance, digestion capacity, gut morphology, immune response, and stress resistance of the red sea bream with relatively higher efficiency by B. subtilis C-3102.

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Section: Discussionsupporting

confidence: 85%

Singular effects of Bacillus subtilis C-3102 or Saccharomyces cerevisiae type 1 on the growth, gut morphology, immunity, and stress resistance of red sea bream (Pagrus major)

Zaineldin

Hegazi

Koshio

et al. 2021

Annals of Animal Science

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“…Aspergillus oryzae was added in the diet of Nile tilapia ( O. niloticus ) at different regimens (every day or alternate days). Results confirmed that any feeding regimen provided similar outcomes with respect to growth, digestive enzyme activity, and intestinal histomorphology [ 78 ]. Yarrowia lipolytica has been utilized as an alternate source of n-3 fatty acids in salmon aquaculture [ 79 ] The apparent digestibility of these lipids can be increased by cell rupture processes from 26% (in unwashed biomass) to 32% (in washed biomass) to 76% for eicosapentaenoic acid, and so it prompted an increase in the n-3 lipid content in S. salar [ 80 ].…”

Section: Single-cell Proteins Production Systemssupporting

confidence: 56%

Single-Cell Proteins Obtained by Circular Economy Intended as a Feed Ingredient in Aquaculture

Pereira

Fraga-Corral

García-Oliveira

et al. 2022

Foods

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The constant increment in the world’s population leads to a parallel increase in the demand for food. This situation gives place the need for urgent development of alternative and sustainable resources to satisfy this nutritional requirement. Human nutrition is currently based on fisheries, which accounts for 50% of the fish production for human consumption, but also on agriculture, livestock, and aquaculture. Among them, aquaculture has been pointed out as a promising source of animal protein that can provide the population with high-quality protein food. This productive model has also gained attention due to its fast development. However, several aquaculture species require considerable amounts of fish protein to reach optimal growth rates, which represents its main drawback. Aquaculture needs to become sustainable using renewable source of nutrients with high contents of proteins to ensure properly fed animals. To achieve this goal, different approaches have been considered. In this sense, single-cell protein (SCP) products are a promising solution to replace fish protein from fishmeal. SCP flours based on microbes or algae biomass can be sustainably obtained. These microorganisms can be cultured by using residues supplied by other industries such as agriculture, food, or urban areas. Hence, the application of SCP for developing innovative fish meal offers a double solution by reducing the management of residues and by providing a sustainable source of proteins to aquaculture. However, the use of SCP as aquaculture feed also has some limitations, such as problems of digestibility, presence of toxins, or difficulty to scale-up the production process. In this work, we review the potential sources of SCP, their respective production processes, and their implementation in circular economy strategies, through the revalorization and exploitation of different residues for aquaculture feeding purposes. The data analyzed show the positive effects of SCP inclusion in diets and point to SCP meals as a sustainable feed system. However, new processes need to be exploited to improve yield. In that direction, the circular economy is a potential alternative to produce SCP at any time of the year and from various cost-free substrates, almost without a negative impact.

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“…In the current study, total protein, globulin and albumin exhibited high values in tilapia fed fermented DSM, which might be due to improved health condition resulted from using ASP in fermentation. Similarly, blood total protein was increased in Nile tilapia fed ASP, suggesting immunomodulatory effects of ASP on Nile tilapia (Dawood et al, ; Dawood et al, ).…”

Section: Discussionmentioning

confidence: 98%

“…The collected serum samples were analysed within 7 days to avoid the spoilage of samples. Another nine intestines of fish from each group (three fish per Habas) were quickly removed followed by sample collection for histology sections (Amin et al, ; Dawood et al, ). Nine intestines of fish from each group (three fish per Habas) were quickly removed, and the segments from the foregut, midgut and hindgut were syringed with the ice‐cold phosphate‐buffered saline (PBS) at pH 7.4 and then placed in 10% formalin for intestinal morphological analysis.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of fermented date palm seed meal withAspergillus oryzaeon the growth, digestion capacity and immune response of Nile tilapia (Oreochromis niloticus)

et al. 2020

Self Cite

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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.

show abstract

Effects of feeding regimen of dietaryAspergillus oryzaeon the growth performance, intestinal morphometry and blood profile of Nile tilapia (Oreochromis niloticus)

Cited by 25 publications

References 56 publications

Singular effects of Bacillus subtilis C-3102 or Saccharomyces cerevisiae type 1 on the growth, gut morphology, immunity, and stress resistance of red sea bream (Pagrus major)

Singular effects of Bacillus subtilis C-3102 or Saccharomyces cerevisiae type 1 on the growth, gut morphology, immunity, and stress resistance of red sea bream (Pagrus major)

Single-Cell Proteins Obtained by Circular Economy Intended as a Feed Ingredient in Aquaculture

Evaluation of fermented date palm seed meal withAspergillus oryzaeon the growth, digestion capacity and immune response of Nile tilapia (Oreochromis niloticus)

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