Effects of dietary acidifiers on growth, hematology, immune response and disease resistance of Nile tilapia, Oreochromis niloticus

Reda, Rasha M.; Mahmoud, Rania; Selim, Khaled; El-Araby, Iman E.

doi:10.1016/j.fsi.2016.01.040

Cited by 116 publications

(73 citation statements)

References 57 publications

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“…Dietary supplementation with malic acid (5 or 10 g/kg diet) and/or probiotic significantly improved the values of Hb, Hct, RBC and WBC of tilapia. Similar findings have been reported for Indian major carp, Labeo rohita (Kumar, Mukherjee, Prasad, & Pal, ), Juvenile beluga ( Huso huso ) (Khajepour & Hosseini, ), Nile tilapia (Hassaan, Soltan et al., ; Hassaan, Wafa et al., ; Meshrf, ; Reda et al., ) and Catla catla (Renuka, Venkateshwarlu, & Naik, ) that received organic acid, organic salts or a probiotic. To date, there is no exact clarification on how probiotics and organic acids stimulate the blood parameters.…”

Section: Discussionsupporting

confidence: 77%

“…The largest increases in body weight and feed utilization were observed in groups that received diet with a mixture of malic acid and the probiotic; however, the addition of the acid or B. subtilis alone also significantly improved the growth performance of the fish. That supplementing diets with organic acid or salts stimulates growth has been reported previously in Nile tilapia (Hassaan, Soltan, Agouz, & Badr, ; Hassaan, Soltan, & Ghonemy, ; Hassaan, Wafa, Soltan, Goda, & Mogheth, ; Meshrf, ; Reda, Mahmoud, Selim, & El‐Araby, ) and rainbow trout, Oncorhynchus mykiss (De Wet, ). Increased growth in fish fed diets supplemented with a probiotic has also been observed in trout (Gatesoupe, ), rohu , Labeo rohita (Bairagi, Sarkar Ghosh, Sen, & Ray, ), grass carp, Ctenopharyngodon idella (Wang, ) and tilapia (Aly, Ahmed, Ghareeb, & Mohamed, ; Hassaan, Soltan et al., ; Hassaan, Wafa et al., ).…”

Section: Discussionsupporting

confidence: 64%

Section: Discussionsupporting

confidence: 56%

“…The effect of malic acid on beneficial probiotic bacteria is not yet clear. Salou et al (1991) observed that the addition of this acid to the (Khajepour & Hosseini, 2012), Nile tilapia Hassaan, Wafa et al, 2014;Meshrf, 2014;Reda et al, 2016) and Catla catla (Renuka, Venkateshwarlu, & Naik, 2014) that received organic acid, organic salts or a probiotic. To date, there is no exact clarification on how probiotics and organic acids stimulate the blood parameters.…”

Section: Discussionmentioning

confidence: 99%

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Combined effects of dietary malic acid andBacillus subtilison growth, gut microbiota and blood parameters of Nile tilapia (Oreochromis niloticus)

et al. 2017

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The study investigated effect of dietary supplementation with malic acid, Bacillus subtilis and a mixture of the two (3 × 2 factorial trial) on Nile tilapia (Oreochromis niloticus) health. Treatment groups (T1-T6) were fed diets containing three levels of malic acid bacterial count in the gut and faeces was detected in fish from group T6. The values of haematocrit, haemoglobin, red blood cells, white blood cells, total protein, albumin and globulin were significantly higher (p < .05) in fish from groups T4 and T6 (diets supplemented with malic acid and B. subtilis). As compared to the control fed fish, te mixture of these substances are promising as immune enhancher in aquacultured fish. K E Y W O R D SBacillus subtilis, blood parameters, growth, gut microbiota, Nile tilapia, organic acid | INTRODUCTIONMicrobial balance and proper pH in the digestive tract eliminate pathogenic microorganisms. This is necessary to maintain fish health in a satisfactory state and to achieve expected production levels.Over the last decade, research has focused on the application of probiotics and prebiotics to replace antibiotic growth promoters in the fish farming industry (Irianto & Austin, 2002;Yanbo & Zirong, 2006) and to enhance the growth and health of the host (Gatesoupe, 1999;Kesarcodi-Watson, Kaspar, Lategan, & Gibson, 2008).Most commercial probiotics currently being tested in aquaculture are lactic acid bacteria (e.g., Lactobacillus), the genus Bacillus, photosynthetic bacteria (e.g., Rhodobacter sphaeroides) and the yeasts foods as a flavour enhancer and for pH (1% malic acid solution is about 2.3) and microbial control, because it inhibits the growth of pathogenic bacteria and pathogenic fungi (Ricke, 2003). An exceptionally valuable nutritional property of this acid is that after oral administration, it stimulates the secretion of gastric juices and increases peristalsis. Small doses of malic acid have prebiotic properties, stimulating the development of non-pathogenic, acidophilic and saprophytic bacteria whereas at higher doses it can exhibit bacteriostatic and bactericidal properties (Salou, Leroy, Goma, & Pareilleux, 1991).An extensive review of the literature on this topic revealed that there are no reports on the in vivo kinetics of probiotic bacterial growth in the presence of organic acids. In in vitro studies, Lactobacillus plantarum exhibited better growth in the presence of malic acid as compared to the control group (Passos, Fleming, Hassan, & McFeeters, 2003).Therefore, in the authors' opinion, the current study is innovative and facilitates a better understanding of the interactions occurring among probiotics and malic acid in the gastrointestinal tract of fish. In summation, the aim of the current investigation was to assess the dietary inclusion of malic acid, Bacillus subtilis or a mix of the two on the growth performance, feed utilization, gut microbiota and haematological and biochemical blood parameters of Nile tilapia (Oreochromis niloticus;Linnaeus, 1758). After carp, the tilapia species c...

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Section: Discussionsupporting

confidence: 77%

Section: Discussionsupporting

confidence: 64%

Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Combined effects of dietary malic acid andBacillus subtilison growth, gut microbiota and blood parameters of Nile tilapia (Oreochromis niloticus)

et al. 2017

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“…A growth performance study is important for determining the efficiency of fish culture (Reda, Mahmoud, Selim, & El‐Araby, ). Compared with the control catfish diet, the catfish diet containing 3% LMWSA enhanced the FBW and WG after 8 weeks.…”

Section: Discussionmentioning

confidence: 99%

Dietary supplementation with low molecular weight sodium alginate improves growth, haematology, immune reactions and resistance againstAeromonas hydrophilainClarias gariepinus

2019

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A few studies have illustrated the effects of sodium salt derived from alginic acid on different fish species. However, little is known about the effect of sodium alginate on catfish (Clarias gariepinus). Therefore, this study was performed to assess the use of low molecular weight sodium alginate (LMWSA) in C. gariepinus. A total of 180 apparently healthy C. gariepinus with a mean body weight of 45 g were randomly divided into three equal groups (D1, D2 and D3). D1 the control group received a control diet, while D2 and D3 received 1% and 3% LMWSA, respectively, for 8 weeks. A challenge test against Aeromonas hydrophila was performed on 15 randomly selected catfish for 15 days. At the end of the experiment, catfish in D3 that received a diet of 3% LMWSA showed significant increases in the final body weight, weight gain and thermal‐unit growth coefficient compared with those in D2 and D1. There was a significant decrease in the erythrogram in D1 after the 4‐day pathogen challenge. A leucogram revealed leucocytosis, heterophilia and lymphocytosis in catfish in D2 and D3 compared with those in D1. After the 4‐day challenge, the following changes took place: lysozyme, nitric oxide, phagocytic activity and the respiratory burst were significantly elevated in catfish that received LMWSA and were more pronounced in D3 than in D1. The mortalities of catfish have been stopped after pathogen challenge from 8‐day in D1 and D2 where at 6‐day in D3. Thus, administration of 1% and 3% LMWSA enhances the growth, immune response and resistance of C. gariepinus against A. hydrophila.

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In vitro evaluation of the probiotic candidates isolated from the gut of Clarias gariepinus with special reference to the in vivo assessment of live and heat-inactivated Leuconostoc mesenteroides and Edwardsiella sp.

et al. 2018

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Effects of dietary acidifiers on growth, hematology, immune response and disease resistance of Nile tilapia, Oreochromis niloticus

Cited by 116 publications

References 57 publications

Combined effects of dietary malic acid andBacillus subtilison growth, gut microbiota and blood parameters of Nile tilapia (Oreochromis niloticus)

Combined effects of dietary malic acid andBacillus subtilison growth, gut microbiota and blood parameters of Nile tilapia (Oreochromis niloticus)

Dietary supplementation with low molecular weight sodium alginate improves growth, haematology, immune reactions and resistance againstAeromonas hydrophilainClarias gariepinus

In vitro evaluation of the probiotic candidates isolated from the gut of Clarias gariepinus with special reference to the in vivo assessment of live and heat-inactivated Leuconostoc mesenteroides and Edwardsiella sp.

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