Influences of replacing dietary fish meal by Antarctic krill meal on growth performance, immunity and muscle quality of white shrimp Litopenaeus vannamei

Wei, Yinmao; Wang, Xiaoxia; Xie, Fangli; Shen, Haohao; Gao, Weihua; Zhang, Wenbing; Mai, Kangsen

doi:10.1016/j.aqrep.2022.101256

Cited by 11 publications

(10 citation statements)

References 47 publications

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“…The survival rate did not differ among groups; on average, it was more than 86% following all the fishmeal replacement levels, in accordance with the findings reported by Ambasankar et al [13], who tested the addition of Antarctic krill meal to white fishmeal for the diet of P. vannamei, and those reported by Wei et al [41], who studied the influence of replacing dietary fishmeal with Antarctic krill meal in Litopenaeus vannamei. The abdomen weight, cephalothorax and exoskeleton weight and total length were significantly greater (p < 0.01) in shrimps fed with 75% seafood discard replacement, while the 25% level provided the lowest figures, with significant differences as compared to the control and 50% groups.…”

Section: Growth Performancesupporting

confidence: 89%

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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Section: Growth Performancesupporting

confidence: 89%

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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“…In comparing the intestine and liver, DEGs enriched in the liver were associated with multiple pathways related to immunity, including the Toll-like receptor pathway, Chemokine signaling pathway, Natural killer cell-mediated cytotoxicity, and JAK-STAT signaling pathway, suggesting that the liver was more sensitive to dietary Antarctic krill compared to the intestine in terms of the immune response. Indeed, the protective effects of dietary Antarctic krill on the immune system have been widely demonstrated in multiple aquaculture organisms, such as White shrimp, Japanese flounder, and Red swamp crayfish [ 37 , 53 , 54 ]. In addition, various anti-inflammatory factors have been screened out, the expression dynamics of which have been validated by qRT-PCR.…”

Section: Discussionmentioning

confidence: 99%

Dietary antarctic krill improves antioxidant capacity, immunity and reduces lipid accumulation, insights from physiological and transcriptomic analysis of Plectropomus leopardus

Wang,

Wu,

Ding

et al. 2024

BMC Genomics

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Background Due to its enormous biomass, Antarctic krill (Euphausia superba) plays a crucial role in the Antarctic Ocean ecosystem. In recent years, Antarctic krill has found extensive application in aquaculture, emerging as a sustainable source of aquafeed with ideal nutritional profiles. However, a comprehensive study focused on the detailed effects of dietary Antarctic krill on aquaculture animals, especially farmed marine fishes, is yet to be demonstrated. Results In this study, a comparative experiment was performed using juvenile P. leopardus, fed with diets supplemented with Antarctic krill (the krill group) or without Antarctic krill (the control group). Histological observation revealed that dietary Antarctic krill could reduce lipid accumulation in the liver while the intestine exhibited no obvious changes. Enzyme activity measurements demonstrated that dietary Antarctic krill had an inhibitory effect on oxidative stress in both the intestine and the liver. By comparative transcriptome analysis, a total of 1,597 and 1,161 differentially expressed genes (DEGs) were identified in the intestine and liver, respectively. Functional analysis of the DEGs showed multiple enriched terms significantly related to cholesterol metabolism, antioxidants, and immunity. Furthermore, the expression profiles of representative DEGs, such as dhcr7, apoa4, sc5d, and scarf1, were validated by qRT-PCR and fluorescence in situ hybridization. Finally, a comparative transcriptome analysis was performed to demonstrate the biased effects of dietary Antarctic krill and astaxanthin on the liver of P. leopardus. Conclusions Our study demonstrated that dietary Antarctic krill could reduce lipid accumulation in the liver of P. leopardus, enhance antioxidant capacities in both the intestine and liver, and exhibit molecular-level improvements in lipid metabolism, immunity, and antioxidants. It will contribute to understanding the protective effects of Antarctic krill in P. leopardus and provide insights into aquaculture nutritional strategies.

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“…Antarctic krill (Euphausia superba) is a zooplankton species already in use for shrimp diets. Krill meal inclusion in diets for whiteleg shrimp has been shown to increase feed intake [13,14] and improve overall nutritional quality [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Calanus finmarchicus Hydrolysate Inclusion on Diet Attractiveness for Whiteleg Shrimp (Litopenaeus vannamei)

Bøgwald,

Herrig,

Pedersen

et al. 2024

Fishes

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Shrimp feed formulations have moved towards less fish meal and more of the readily available and cheaper plant proteins. To counteract the lower attractiveness and palatability of plant proteins, feeds are supplemented with ingredients known to have chemoattractive properties that will increase feed intake. This study investigated the putative chemoattractive effect of Calanus finmarchicus hydrolysate, when used as a dietary supplement in shrimp feeds. C. finmarchicus is a zooplankton species native to the northern Atlantic Ocean and is a novel and sustainable raw material for shrimp feed products. Diet attractiveness was evaluated in a 24-day feeding trial with whiteleg shrimp (Litopenaeus vannamei) by measuring the intake of 12 diets with various levels of fish meal, calanus hydrolysate, and krill (Euphausia superba) meal. Higher inclusion rates of both ingredients resulted in increased feed intakes, and supplementing the high fish meal diet with calanus hydrolysate gave a statistically significant higher feed intake. Low molecular weight peptides, chemoattractive amino acids, and the water-soluble nature of the hydrolysate could explain the chemoattractive properties observed in the study.

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Influences of replacing dietary fish meal by Antarctic krill meal on growth performance, immunity and muscle quality of white shrimp Litopenaeus vannamei

Cited by 11 publications

References 47 publications

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

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

Dietary antarctic krill improves antioxidant capacity, immunity and reduces lipid accumulation, insights from physiological and transcriptomic analysis of Plectropomus leopardus

Effect of Calanus finmarchicus Hydrolysate Inclusion on Diet Attractiveness for Whiteleg Shrimp (Litopenaeus vannamei)

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