Effects of feed on fatty acid composition in muscles and gonads of the Chinese mitten crab (<i>Eriocheir sinensis</i>)

Zou, Jianmin; Song, Chao; Meng, Shunlong; Hu, Gengdong; Qiu, Liping; Fan, Limin; Chen, Jiazhang

doi:10.2478/oandhs-2021-0029

Cited by 5 publications

(2 citation statements)

References 28 publications

(28 reference statements)

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“…In the present study, the ω − 3/ω − 6 ratios of the two groups were close to the WHO-recommended minimum level of 0.6, indicating that the two groups of fish could achieve a balanced ratio of unsaturated fatty acid levels. However, the formulated diet group achieved a higher ω − 3/ω − 6 ratio than the iced trash fish diet group, suggesting that fish fed on a formulated diet can be transformed into a more suitable product for human consumption through continuous formula optimization [40,41].…”

Section: Discussionmentioning

confidence: 98%

Comparison of Growth Performance and Muscle Nutrition Levels of Juvenile Siniperca scherzeri Fed on an Iced Trash Fish Diet and a Formulated Diet

Wang

Lai

Tian

et al. 2023

Fishes

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To assess the possibility of using a formulated diet instead of an iced trash fish diet for feeding spotted mandarin fish (Siniperca scherzeri), a 20-week feeding trial was conducted. The objective of the study was to examine the effects of the formulated diet (FG) and the iced trash fish diet (XG) on the growth performance and muscle nutrient composition of the fish. The results showed that the spotted mandarin fish fed with an XG had slightly higher survival rates, weight gain rate, fullness, hepatic index, and viscera index compared to those fed with an FG, although the differences were not significant (p > 0.05). Additionally, in terms of muscle composition, the FG group had higher levels of crude protein and ash content in the fish muscle compared to the XG group (p < 0.05). On the other hand, the crude fat content showed the opposite trend. Among the seventeen amino acids analyzed, only lysine and proline levels differed significantly between the FG and XG groups (p < 0.05). In terms of muscle-hydrolyzed fatty acids, fifteen fatty acids were detected in both groups, with arachidonic acid being exclusive to the FG group. Furthermore, significant differences in the levels of thirteen fatty acids were observed between the two groups (p < 0.05). The FG group had lower levels of saturated fatty acids compared to the XG group (p < 0.05), while monounsaturated fatty acids, polyunsaturated fatty acids, and EPA + DHA contents were higher. This study demonstrates the potential of using a formulated diet as a substitute for an iced trash fish diet in the rearing of spotted mandarin fish. However, further optimization of the formulated diet is necessary to improve the growth of spotted mandarin fish in future research.

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Section: Discussionmentioning

confidence: 98%

Comparison of Growth Performance and Muscle Nutrition Levels of Juvenile Siniperca scherzeri Fed on an Iced Trash Fish Diet and a Formulated Diet

Wang

Lai

Tian

et al. 2023

Fishes

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“…For example, according to Dvoretsky et al [ 51 ], the n-3 to n-6 PUFA ratio in the gonads of red king crabs from the Barents Sea exceeds 4. When comparing these values to Chinese aquaculture crabs, the ratio ranged from 0.5 in crabs fed with frozen waste to 1.1 in those fed with formulated feed [ 54 ]. In Chinese natural waters, the ratio varied from 0.54 to 1.7 depending on the maturity stage of the gonads [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Nutritional Quality and Fatty Acids Composition of Invasive Chinese Mitten Crab from Odra Estuary (Baltic Basin)

Czerniejewski,

Bienkiewicz,

Tokarczyk

2023

Foods

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The Chinese mitten crab (Eriocheir sinensis) is recognized as an invasive species in Europe but increasing fishing efforts may hold economic benefits and yield positive ecological and nutritional outcomes. The objective of this study was to determine the yield of edible parts and the compositional and nutritional characteristics of this crab, especially as a source of n-3 PUFA. The overall yield of edible parts amounted to 38.09%, with males (27.72%) exhibiting a higher meat content compared to females (25.30%). The gonads displayed the highest protein content (24.12%), while the hepatopancreas (11.67%) showcased the highest fat content. Furthermore, the fatty acid composition varied depending on the distribution within different crab segments and gender and individual size. Notably, the gonad lipids contained the most nutritionally valuable n-3 fatty acids, followed by muscle and hepatopancreas lipids. The determined index of atherogenicity (IA) from 0.2 for gonadal lipids to 0.42 for hepatopancreas lipids, index of thrombogenicity (IT) in the range of 0.10 for gonads to 0.41 for hepatopancreas, and flesh lipid quality (FLQ) from 6.9 for hepatopancreas to 23 for muscle lipids indicate their pro-health properties. The ratio of n-3 to n-6 fatty acids showed Chinese mitten crab as an excellent source of oil that can be used for food fortification and dietary supplement production.

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Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)

Gao

et al. 2022

Aquaculture Reports

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Effects of feed on fatty acid composition in muscles and gonads of the Chinese mitten crab (Eriocheir sinensis)

Cited by 5 publications

References 28 publications

Comparison of Growth Performance and Muscle Nutrition Levels of Juvenile Siniperca scherzeri Fed on an Iced Trash Fish Diet and a Formulated Diet

Comparison of Growth Performance and Muscle Nutrition Levels of Juvenile Siniperca scherzeri Fed on an Iced Trash Fish Diet and a Formulated Diet

Nutritional Quality and Fatty Acids Composition of Invasive Chinese Mitten Crab from Odra Estuary (Baltic Basin)

Effects of fattening diets on the nutritional quality and flavor of the adult female Chinese mitten crab (Eriocheir sinensis)

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