Effects of dietary n-6 polyunsaturated fatty acids (PUFA) composition on growth performances and non-specific immunity in pacific white shrimp (Litopenaeus vannamei)

Zhu, Wenwu; Dong, Ruonan; Ge, Leilei; Yang, Qing; Lu, Na; Li, Hui; Feng, Zhengfu

doi:10.1016/j.aqrep.2022.101436

Cited by 5 publications

(5 citation statements)

References 33 publications

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“…MDA is one of the final products of lipid peroxidation in the cell membrane and an important indicator of the degree of coral lipid peroxidation and cellular oxygen-free radical damage 47 . Increased MDA implies endogenous oxidative damage and lipid peroxidation 48 , Wu 39 reported that DOX stress could improve the MDA content of M. aeruginosa , similar to the existing research results, the MDA content of soft coral in this study increased significantly, indicating that DOX can cause lipid peroxidation of soft coral and seriously damage cells. Under stress conditions, the production of MDA is usually accompanied by the consumption of antioxidant metabolic enzymes such as SOD and CAT, while further inducing the production of oxygen free radicals, inhibiting the antioxidant system, and aggravating the damage of coral cells 47 .…”

Section: Discussionsupporting

confidence: 87%

“…Studies have shown that AKP activity was determined by its optimal pH value, and its activity decreased when the tissue was seriously damaged 45 , similar to previous studies, the AKP activity of soft corals in this study decreased, which indicated that DOX stress changed the pH in soft corals, which may cause serious damage to the structure of its tissues and organs. ACP is a typical lysosomal enzyme, which plays a role in killing and digesting microbial pathogens in the process of the immune response 51 , the results of this experiment showed that the ACP activity of soft coral increased significantly, indicating that acute DOX exposure enhanced the digestion and detoxification process of soft coral 48 , which may be a stress response measure for coral to respond to acute stress environments. DOX can trigger an immune response in corals in the short term, impact their immune capacity and health status, and even cause serious damage to tissues and organs.…”

Section: Discussionmentioning

confidence: 76%

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Physiological and biochemical responses of soft coral Sarcophyton trocheliophorum to doxycycline hydrochloride exposure

Xu,

Ahmed,

Mahmood

et al. 2023

Sci Rep

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In light of the rapid expansion of the marine aquaculture industry, there has been widespread and irregular usage of aquatic drugs to combat biological diseases, which significantly impact the neighboring aquatic ecosystems. This study delves into the impact of the antibiotic aquatic drug known as doxycycline hydrochloride (DOX) on offshore soft corals, providing valuable data for the responsible use and management of aquatic drugs. In this investigation, we subjected Sarcophyton trocheliophorum to acute exposure to varying concentrations of DOX (0, 1, 5, and 10 mg L−1). We meticulously assessed critical parameters and observed alterations in protein levels, superoxide dismutase (SOD) activity, catalase (CAT) activity, lipid peroxidation (LPO), malondialdehyde (MDA) levels, Acid phosphatase (ACP) activity, alkaline phosphatase (AKP) activity, glutathione (GSH) concentration, glutathione S-transferase (GST) activity, glutathione Peroxidase (GSH-Px) activity, zooxanthellae density, and chlorophyll content. Our findings reveal that in the presence of DOX-induced environmental stress, there is a significant increase in LPO, MDA, chlorophyll, carotenoid levels, and the activities of ACP, GST, and GSH-Px in soft corals. Simultaneously, there is a noteworthy decrease in zooxanthellae density. Additionally, the protein concentration and SOD activity in soft corals experience substantial reduction when exposed to 5 mg L−1 DOX. Notably, CAT activity varies significantly in environments with 1 and 10 mg L−1 DOX. Moreover, these conditions exhibit a discernible influence on AKP activity, GSH content, and chlorophyll levels. These findings suggest that DOX exposure carries the potential for toxicity in aquaculture settings, affecting protein synthesis in soft corals and influencing oxidative stress, lipid peroxidation, immunity, and detoxification processes within these organisms. There is also a risk of compromising the coral defense system, potentially leading to coral bleaching. Furthermore, this study underscores the significant impact on photosynthesis, growth, and the metabolic dynamics of the coral-zooxanthellae symbiotic system. Consequently, our research offers vital insights into the mortality and bleaching effects of aquatic drugs on marine corals, offering a foundation for the prudent use and management of such substances.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 76%

Physiological and biochemical responses of soft coral Sarcophyton trocheliophorum to doxycycline hydrochloride exposure

Xu,

Ahmed,

Mahmood

et al. 2023

Sci Rep

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“…The high DHA content in ASC could be useful for DHA enrichment in live feed, such as copepods (Reitan et al, 1997;McKinnon et al, 2003) or as an alternative source of DHA to some fish oils that contain high DHA content, such as tuna oil (Sprague et al, 2015;Fard et al, 2020). Omega 3 (ω-3) and omega 6 (ω-6) fatty acids are PUFAs that are essential for the human body and animal to function properly, establishing normal growth and development through all stages of life (González-Félix et al, 2002;Turchini et al, 2010;Araújo et al, 2019;DurmuŞ, 2019;An et al, 2020;Zhang et al, 2022;Zhu et al, 2023).…”

Section: Fatty Acid Compositionmentioning

confidence: 99%

Growth, total lipid content and fatty acid composition of Amphora sp. isolated from Gulf of Thailand as alternative lipid source in larviculture

2024

ANRES

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Article InfoImportance of the work: Amphora sp. strains contain a high lipid content that could be an excellent substitute ingredient in fish meal and fish oil. Objectives: To evaluate the growth performance and lipid content of four Amphora sp. strains isolated from four different locations in the Gulf of Thailand. Materials & Methods: Four Amphora sp. strains-Sichang Island (ASC), Samaesarn Island (ASS), Pran Buri (APB) and Laemyai (ALY)-isolated from four different locations in the Gulf of Thailand were cultured in F/2 medium for 13 d. Biomass and the specific growth rate (SGR) of the experimented Amphora sp. were determined. Two Amphora sp. strains with high biomass performance were further investigated for their lipid content and fatty acid composition. Results: Among the Amphora sp. strains, ASC had the highest biomass production (1.01×10 6 cells/cm 2 ), followed by ALY (3.75×10 5 cells/cm 2 ), with the biomass performance of these two strains being significantly higher than for the other two strains. ALY had the fastest growth rate, while ASC grew more slowly, but was more stable. The mean (±SD) maximum lipid content of ALY was 74.35±2.46%, while that of ASC was 45.38±4.18%. The major UFAs detected in both strains included eicosapentaenoic acid, docosapentaenoic acid, docoxahexaenoic acid and stearidonic acid. Main finding: ALY, with the fastest growth rate and the highest lipid content was the most efficient candidate for mass production, while ASC was more tolerant as an aged culture, which should be useful for long-term mass production.

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“…The total polyunsaturated fatty acid (PUFA) concentration in the shrimp muscle significantly increased (p < 0.05) as the percentage of fishmeal replacement increased. PUFAs are essential nutrients for the growth of shrimps [55]; in a previous study carried out on Litopenaeus vannamei, the authors stated that this shrimp has dietary requirements for C18:2n-6 (linoleic, LOA), C18:3n-3 (α-linolenic, ALA), C20:4n-6 (arachidonic, ARA), C20:5n-3 (eicosapentaenoic, EPA) and C22:6n-3 (docosahexaenoic, DHA,) [56,57]. In the present study, greater levels of inclusion of the seafood discards in the shrimp diet led to a significant increase in the content of EPA and DHA (p < 0.05), while the concentration of ALA and LOA remained constant.…”

Section: Muscle Fatty Acid Compositionmentioning

confidence: 99%

Partial Replacement of Fishmeal with Seafood Discards for Juvenile Penaeus japonicus: Effects on Growth, Flesh Quality, Chemical and Fatty Acid Composition

Ragni,

Colonna,

Di Turi

et al. 2024

Fishes

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The present study was designed to assess the influence of fishmeal replacement with increasing percentages of fresh seafood discards (0, 25, 50 and 75%) in diets for Penaeus japonicus on growth performance, physical characteristics and the chemical and fatty acid composition of shrimp flesh. Each diet was administered for 108 days, and the trial was assayed in triplicate. The final body weight and the specific growth rate were significantly higher (p < 0.05) in shrimps fed with 75% fishmeal replacement as compared to 25%, while the abdomen weight and the total length were the highest (p < 0.01). Moreover, 75% replacement showed a significantly (p < 0.05) lower value of hardness and a greater crude protein and lipid content as compared to the 0% replacement. The shrimps fed with high levels of seafood discards (50 and 75%) showed a lower saturated fatty acid concentration and, in turn, a greater amount of polyunsaturated fatty acids in shrimp meat significantly (p < 0.05) affected the lower atherogenic and thrombogenic indices. In conclusion, replacing 75% of fishmeal with seafood discards provided satisfactory results. An economic analysis based on ESG indicators and PESTLE methodology is provided in order to show the socio-economic and governance impacts affecting the replacement of shrimps’ diet with fish discard.

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Effects of dietary n-6 polyunsaturated fatty acids (PUFA) composition on growth performances and non-specific immunity in pacific white shrimp (Litopenaeus vannamei)

Cited by 5 publications

References 33 publications

Physiological and biochemical responses of soft coral Sarcophyton trocheliophorum to doxycycline hydrochloride exposure

Physiological and biochemical responses of soft coral Sarcophyton trocheliophorum to doxycycline hydrochloride exposure

Growth, total lipid content and fatty acid composition of Amphora sp. isolated from Gulf of Thailand as alternative lipid source in larviculture

Partial Replacement of Fishmeal with Seafood Discards for Juvenile Penaeus japonicus: Effects on Growth, Flesh Quality, Chemical and Fatty Acid Composition

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