Mixes of plant oils as fish oil substitutes for Nile tilapia at optimal and cold suboptimal temperature

Corrêa, Camila Fernandes; Nóbrega, Renata Oselame; Block, Jane Mara; Fracalossi, Débora Machado

doi:10.1016/j.aquaculture.2018.07.034

Cited by 41 publications

(25 citation statements)

References 36 publications

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“…Nile tilapia (Oreochromis niloticus) is one of popular worldwide freshwater-cultured fish species (Corrêaa, Nobrega, Block, & Fracalossi, 2018). Nowdays, tilapia fillets are more preferred due to consumption habit.…”

Section: Introductionmentioning

confidence: 99%

Effect of pullulan hydrolysates on the quality of Nile tilapia ( Oreochromis niloticus ) fillets during ice storage

Chen

Zhou

et al. 2019

J Food Process Preserv

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Pullulan was hydrolyzed by pullulanase producted by Bacillus megaterium. The ABTS+, OH, and DPPH scavenging activities of hydrolysates were 37.73, 21.67, and 17.03%, respectively, when its concentration reached 30 mg/ml, significantly higher than pullulan (p < 0.05). Edible coatings based on pullulan hydrolysates were used to preserve Nile tilapia (Oreochromis niloticus) fillets under ice storage. The results showed that 2 and 3% hydrolysates were most effective in decreasing physicochemical changes including 2‐thiobarbituric acid (TBA), total volatile basic nitrogen, electrical conductivity, pH, water loss, and discoloration, inhibiting bacterial growth; and increasing the sensory quality of fish fillets compared with control samples (p < 0.05), and no significant differences were observed between them (p > 0.05). Practical applications Edible coating based on polysaccharide is an ideal method of fish fillets preservation. Results indicated that pullulan hydrolysates has good ability on extending shelf life of fish fillets. This study could provide a efficient method on the quality control of Nile tilapia fillets.

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Section: Introductionmentioning

confidence: 99%

Effect of pullulan hydrolysates on the quality of Nile tilapia ( Oreochromis niloticus ) fillets during ice storage

Chen

Zhou

et al. 2019

J Food Process Preserv

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“…Nile tilapia is a tropical species; however, several studies have evaluated different factors that may influence the tilapia to show a good performance when subjected to temperatures below its ideal (Abdel‐Ghany et al., 2019; Agouz et al., 2016; Corrêa et al., 2018; He et al., 2017). One of these known factors is genetics.…”

Section: Discussionmentioning

confidence: 99%

Cold tolerance and performance of selected Nile tilapia for suboptimal temperatures

et al. 2020

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This study evaluated the performance and cold tolerance of different Nile tilapia stocks, selected at suboptimal temperature and identified alleles of microsatellite markers associated with cold tolerance. After 67 days of rearing at average temperature of 22.4°C, tilapia juveniles from different stocks were evaluated, tagged with a transponder and acclimated to 16°C. Subsequently, the temperature was reduced 1°C per day until 11°C and from that temperature decreases of 0.5°C per day were made until total mortality. A caudal fin sample was collected, and their genetic profile was characterized through the microsatellite markers UNH879, UNH916 and UNH999. Tilapias of stocks S3, S6 and S7 showed higher growth at suboptimal temperatures, 42 to 47% higher than base population. In the cold tolerance assay, tilapias from stocks S5 and S7 showed lower mean death temperature. Through molecular analysis, it is stated that allele 186 bp of UNH879 and 147 bp of UNH916 were more frequently found in animals cold‐tolerant. Artificial selection for final weight during winter in southern Brazil can assist in the selection of tilapias improved to rearing in suboptimal temperatures. Finally, using microsatellite markers, it is possible to direct selective breeding to obtain tilapias more adapted to low temperatures.

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“…Diets were submitted to analyses of dry matter (drying at 105 °C to constant weight, method 950.01), crude protein (Kjeldahl, method 945.01), total lipid (Soxhlet, method 920.39C), ash (incineration at 550 °C, method 942.05) and gross energy (adiabatic bomb calorimeter). Fatty acid analyses were measured by gas chromatography using the modified method of Folch, Less, and Stanley (1957) [ 40 ], as described by Corrêa, Nobrega, Mattioni, and Fracalossi (2018) [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

Nannochloropsis spp. as Feed Additive for the Pacific White Shrimp: Effect on Midgut Microbiology, Thermal Shock Resistance and Immunology

Guimarães

Guertler

Pereira

et al. 2021

Animals

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This work aimed to evaluate Nannochloropsis spp. as feed additive in the diet of Pacific white shrimp for their effect on midgut microbiology, thermal shock resistance and immunological parameters. Initially, the digestibility of the microalgae meal was assessed, and the apparent digestibility coefficient (ADC) was determined. The ADC was, in general, high in lipids (78.88%) and eicosapentaenoic fatty acid (73.86%). Then, Nannochloropsis spp. were included in diets at four levels (0, 0.5, 1 and 2% inclusion). The shrimp were reared in 500 L clear water tanks containing 20 shrimp per tank with an initial weight of 6.05 ± 0.06 g and fed four times a day. Shrimp fed with supplemented diets containing Nannochloropsis spp. (0.5 and 2%) presented higher resistance to thermal shock when compared to the non-supplemented group (control). Shrimp fed with 1 and 2% of algae inclusion had a higher production of reactive oxygen species (ROS) when compared to other treatments. No statistical difference was observed in the immunological parameters and microbiology of the intestinal tract. Thus, the inclusion of Nannochloropsis spp. in shrimp diets at 0.5 and 2% levels increases resistance to thermal shock and ROS production in shrimp.

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Mixes of plant oils as fish oil substitutes for Nile tilapia at optimal and cold suboptimal temperature

Cited by 41 publications

References 36 publications

Effect of pullulan hydrolysates on the quality of Nile tilapia ( Oreochromis niloticus ) fillets during ice storage

Effect of pullulan hydrolysates on the quality of Nile tilapia ( Oreochromis niloticus ) fillets during ice storage

Cold tolerance and performance of selected Nile tilapia for suboptimal temperatures

Nannochloropsis spp. as Feed Additive for the Pacific White Shrimp: Effect on Midgut Microbiology, Thermal Shock Resistance and Immunology

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