Contribution of microalgae-enriched fodder for the Nile tilapia to growth and resistance to infection with Aeromonas hydrophila

Fadl, Sabreen E.; El-Gohary, Mohamed S.; Elsadany, Abdelgawad Y.; Gad, Doaa M.; Hanaa, Farag F.; El‐Habashi, Nagwan

doi:10.1016/j.algal.2017.08.022

Cited by 43 publications

(16 citation statements)

References 30 publications

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“…This effect may be regarded as modulation of the host immune system as speculated by Takeuchi et al () and Hironobu, Kazuki, Asmi, Tassakka, and Masahiro () after using Spirulina . The result of the survival rate in the present study is inconsistent with that of Fadl et al ().…”

Section: Discussioncontrasting

confidence: 99%

“…In a previous study, the positive effects of Spirulina , Chlorella and their mixture on growth performance and some physiological parameters were evaluated (Fadl et al, ), however, their immune modulatory potential is still unclear. Thus, the present study was conducted to evaluate the effect of Spirulina , Chlorella and their mixture on the lysozyme and bactericidal activity, antioxidant enzymes, whole fish body composition, histopathology, health condition and survival rate of cultured Nile tilapia experimentally infected with A. hydrophila .…”

Section: Introductionmentioning

confidence: 99%

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Effect of using Spirulina and Chlorella as feed additives for elevating immunity status of Nile tilapia experimentally infected with Aeromonas hydrophila

El‐Habashi

Fadl

Farag³

et al. 2019

Aquac Res

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The present trial was performed to evaluate the effect of dietary incorporation of dried Spirulina, Chlorella and their mixture on the immune status of Nile tilapia (Oreochromis niloticus) before and after artificial infection with pathogenic bacterium Aeromonas hydrophila (A. hydrophila). Two hundred and forty fish were divided into four groups: (a) a control group fed on a basal diet only, (b) a second group fed on a diet containing Spirulina 15%, (c) a third group fed on a diet containing Chlorella 15%, and (d) a fourth group fed on a diet containing a mixture of both Spirulina 15% and Chlorella 15%. At the end of the experiment (9 weeks), the four groups were experimentally infected with A. hydrophila for 7 days. Antioxidant enzymes, lysozyme and bactericidal activities and histopathological changes were determined just before the challenge test and 7 days post‐challenge. Significant (p ≤ 0.05) increases in fish body protein% before the challenge test and increases in serum antioxidant enzymes, lysozyme and bactericidal activity in the Chlorella and algal mixture groups before and after the challenge test were observed. Spirulina, Chlorella and their mixture groups significantly decreased serum malondialdehyde compared to the control group before and after the challenge test. Using Spirulina, Chlorella and their mixture mitigated the necrotic and degenerative changes induced by A. hydrophila and revealed well‐developed and multiple melanomacrophage centres. Thus, dietary Spirulina, Chlorella and their mixture inclusion in Nile tilapia fish proved to have a protective effect against A. hydrophila infection.

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Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of using Spirulina and Chlorella as feed additives for elevating immunity status of Nile tilapia experimentally infected with Aeromonas hydrophila

El‐Habashi

Fadl

Farag³

et al. 2019

Aquac Res

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“…Khani et al, (2017) also showed that that, ALT and AST levels in serum of treated carp fish had the normal level pattern by dietary addition of C. vulgaris for 2 months. Also, Fadl et al, (2017) found that the contribution of 15% C. vulgaris enriched fodder for the Nile tilapia did not produce any changes in serum ALT, AST, creatinine, and uric acid. However, Xu et al, (2014) reported an increase in serum levels of ALT and AST in Gibel carp that fed on C. vulgaris in the diet for 2 months.…”

Section: Discussionmentioning

confidence: 89%

“…This elevation of serum protein level could be due to the liver function improvement by C. vulgaris. Besides, Fadl et al, (2017) found that total protein and globulin were markedly elevated in the serum of Tilapia, after feeding 15% C. vulgaris in the diet for 9 weeks. Also, Simanjuntak et al, (2018) found that microalgae supplementation increased total protein, albumin, and globulin compared to controls Gurami fish.…”

Section: Discussionmentioning

confidence: 93%

Some pharmacological studies on Chlorella vulgaris in tilapia fish

Abbas

El‐Shafei

Zahran

et al. 2020

Kafrelsheikh Veterinary Medical Journal

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Objective: This study was undertaken to evaluate the therapeutic effect of Chlorella vulgaris microalgae on Nile tilapia (Oreochromis niloticus). Methods: A total of 40 healthy fish were used in this study and were randomly classified into two groups (n= 20/group). The 1 st group served as a control, while the 2 nd group received C. vulgar powder (5%) in feed for one month. Blood samples were collected post-treatment. The serum samples were used to estimate the levels of total protein, albumin, globulin, lipid profile (total cholesterol, triglycerides, high-density lipoprotein, and low-density lipoprotein), uric acid, creatinine, aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Also, some hematological parameters were measured post-treatment. Results: There was a significant increase in serum levels of total protein, albumin, and globulin, while total cholesterol level was significantly decreased in the C. vulgaris group as compared to the control group. The levels of AST, ALT, uric acid, and creatinine showed no significant changes. Moreover, the supplementation of C. vulgaris in the diet of treated fish evoked a significant increase in hemoglobin, packed cell volume %, red blood cells, and white blood cells count. Conclusion: These findings conclude that the addition of C. vulgaris algae in fish diet enhances the health status of Nile tilapia without any negative effects on blood parameters.

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“…Genetic species improvement promotes enhancing system productivity (Hamzah et al, 2014). Nevertheless, despite innumerable studies in which physical-chemical cultivation water, environmental conditions, fecundity, feeding habits, health and growth conditions on production have been assessed (Shafland & Pestrak, 1982;Watanabe et al, 1993;Sifa et al, 2002;Filho et al, 2009;Domínguez-May et al, 2011;Zhang et al, 2016;Boerlage et al, 2017;Fadla et al, 2017;Gophen, 2017;Hossain et al, 2017;Stickney, 2017;Devic et al, 2018), variability among research results within this species have been reported frequently (Peterman, 2011). This variability could be explained in part by the genetic differences among the particular strains of the species used (Eknath et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Bioeconomic profitability analysis of tropical gar (Atractosteus tropicus) grow out using two commercial feeds

Espinosa-Chaurand¹,

Aparicio-Simón

Cortés-Sánchez

et al. 2019

LAJAR

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This study compared survival, growth, feed conversion rate (FCR) and harvested biomass of two commercial strains of tilapia (Oreochromis niloticus) cultivated in Mexico: Spring Genetic-Benchmark Holding® originated from the Genetically Improved Farmed Tilapia GIFT (Genebank: GIFT GU477624.1) and strain B from different line-breeding (Genebank: Philippines GU477626.1, Guangdong GU477627.1, and America GU477628.1). The study was performed in six geomembrane ponds (2,520 m 3 ; 30×40×1.5 m) with supplementary aeration, in Los Pozos farm, El Rosario, Sinaloa, Mexico. In July 2016, 26,762 ± 170 fries of each strain (2.9 ± 0.1 g and 5.4 ± 0.2 cm) were cultivated in the nursery under similar conditions in triplicate at 11 ind m-3 for 34 days; then, they were transferred to the grow-out ponds and fed with 30% crude protein balanced feed (Purina®) at a rate of 12% live weight day-1 in three rations (07:00, 12:00 and 17:00 h) for 123 days. The results showed that Spring had a lower variation coefficient (VC) and higher survival, growth rate in weight, initial and final size, and harvested biomass. Survival was 30.7% greater in Spring and doubled harvested biomass (Spring 10 ± 0.8 t ha-1 vs. B strain 5 ± 4.7 t ha-1). Sixty percent of the Spring population reached a commercial weight of 500 g in day 123th of cultivation compared with 20% of B population in the same period. Except for FCR, VC was lower in the Spring strain. Differences in productive parameters were probably due to the genetic selection programs at which both strains were subjected.

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Contribution of microalgae-enriched fodder for the Nile tilapia to growth and resistance to infection with Aeromonas hydrophila

Cited by 43 publications

References 30 publications

Effect of using Spirulina and Chlorella as feed additives for elevating immunity status of Nile tilapia experimentally infected with Aeromonas hydrophila

Effect of using Spirulina and Chlorella as feed additives for elevating immunity status of Nile tilapia experimentally infected with Aeromonas hydrophila

Some pharmacological studies on Chlorella vulgaris in tilapia fish

Bioeconomic profitability analysis of tropical gar (Atractosteus tropicus) grow out using two commercial feeds

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