Effects of dietary lipid levels on sub-adult triploid rainbow trout (Oncorhynchus mykiss): 1. Growth performance, digestive ability, health status and expression of growth-related genes

Meng, Yuqiong; Qian, Kangkang; Ma, Rui; Liu, Xiaohong; Han, Buying; Wu, Jihong; Zhang, Lu; Zhan, Taorong; Hu, Xuemin; Tian, Haining; Li, Changzhong

doi:10.1016/j.aquaculture.2019.734394

Cited by 50 publications

(46 citation statements)

References 49 publications

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“…Therefore, dietary lipids promote IGFs secretion, and thus have a positive impact on growth performance. Similar results were found in rainbow trout (Oncorhynchus mykiss) and Nile tilapia (Oncorhynchus niloticus) (Vera Cruz et al, 2006;Meng et al, 2019).…”

Section: The Response Of Barramundi To High Lipid Dietsupporting

confidence: 80%

Influence of Non-protein Diets on Hepatic Metabolism and Endocrine in Barramundi (Lates calcarifer)

Zhou

et al. 2021

Front. Mar. Sci.

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This study evaluated the effects of different dietary non-protein energy sources on hepatic metabolism and endocrine of barramundi. Fish were fed iso-energy diets (18 MJ kg–1) with two types of non-protein energy source in the experimental group and a regular diet was used as the control. The feeding trial lasted 56 days. In the present study, CPT1 and SCD expression in fish fed high lipid diet were upregulated and liver lipid metabolism was more active than the control group. Serum biochemical parameters including serum glucose, serum triacylglycerol and serum cholesterol were significantly increased. The IGF-I and IGF-II expressions were significantly upregulated, and growth performances were improved in fish fed the high lipid diet. When barramundi were fed with the high carbohydrate diet, GK expression was downregulated and cPEPCK expression was upregulated, indicating that glycogen might accumulate in liver. The fluctuation of serum biochemical parameters and the growth performance were not significantly different compared to the control group. In conclusion, high lipid diet can shorten the raising period, but it causes the change of metabolic level and the increase of useless adipose tissue; The high carbohydrate diet did not significantly improve the growth performance, and no significant metabolic abnormalities were observed, indicating that carbohydrate has the potential to be the feed energy supply source for juvenile barramundi. The results provide insights for further understanding the availability of non-protein energy sources in the diet of juvenile barramundi.

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Section: The Response Of Barramundi To High Lipid Dietsupporting

confidence: 80%

Influence of Non-protein Diets on Hepatic Metabolism and Endocrine in Barramundi (Lates calcarifer)

Zhou

et al. 2021

Front. Mar. Sci.

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“…Nevertheless, the excessive or insufficient dietary lipid levels may have negative effects on muscle quality, growth and disease resistance of fish species (Liu et al, 2021;Xu et al, 2020). Previously, it is observed that the appropriate content of lipid levels in diets improves the growth performance of Micropterus salmoides, Oncorhynchus mykiss and Scylla paramamosain (Guo et al, 2019;Meng et al, 2019;Xu et al, 2020). In this study, the final body weight was significantly increased by 10.…”

Section: Discussionmentioning

confidence: 45%

Effect of Lipid Levels on the Growth Performance and Hepatic Lipid Deposition in the Post-Larval Coho Salmon (Oncorhynchus kisutch)

Wang¹,

Liu²

2021

American Journal of Biochemistry and Biotechnology

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In this study, the effect of different lipid levels (6.6, 10.56, 15.43, 18.91, 22.52 and 26.91%) on the body composition, growth performance and lipid deposition was investigated in the post-larval coho salmon (Oncorhynchus kisutch). The results showed that the optimum lipid level for post-larval coho salmon was 15.8% based on the Specific Growth Ratio (SGR). Moreover, 15.43, 18.91, 22.52 and 26.91% lipid levels significantly elevated the content of crude lipid in fish. However, the moisture, ash and crude protein was not significantly influenced by various lipid levels. The lipid levels of 18.91, 22.52 and 26.91% significantly elevated the content of TC, TG and NEFA, whereas significantly decreased the activity of FAS, ACC and ACL in the liver of coho salmon. In addition, the higher lipid levels significantly increased the activity of HL and LPL in liver. The total content of Saturated Fatty Acids (SFA) was increased but that of Polyunsaturated Fatty Acids (PUFA) was decreased by 18.91, 22.52 and 26.91% lipid levels. In all, the appropriate lipid levels had positive effects on the growth performance and hepatic lipid deposition of the post-larval coho salmon. Our results will be beneficial for optimizing the use of lipid in the diets of Coho salmon.

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“…And it was found that vegetable oil can induce the mRNA level of pro‐inflammatory cytokine genes in Lateolabrax japonicus (Tan et al, 2017) and Sparus aurata (Montero et al, 2010). Many studies have been conducted on the effects of dietary lipid including sources or levels on the non‐specific immune response and disease resistance of fish (Y. Jin et al, 2013; Meng et al, 2019; You et al, 2019). However, the correlation between dietary lipid and health status of crustaceans remains little understood, especially crayfish.…”

Section: Introductionmentioning

confidence: 99%

Partial replacement of dietary fish oil by beef tallow does not impair antioxidant capacity and innate immunity of red swamp crayfish, Procambarus clarkii

Gao

Tang

et al. 2021

Aquaculture Research

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Beef tallow (BT) has attracted research interests of fish oil (FO) sparing in aquafeed, but total replacement of dietary FO by BT might damage aquatic animal health as a controversial issue for years. This study aimed to investigate the effects of BT partially or completely replacing FO on the health of red swamp crayfish (Procambarus clarkii), especially antioxidant capacity and immune response. Three experimental diets containing FO, BT and a blend of FO and BT (FB, 1:1) as lipid sources, respectively, were formulated to feed crayfish for 8 weeks. The results showed crayfish exhibited no significant differences (p > 0.05) in growth and body proximate composition regardless of dietary lipids. Crayfish fed a BT diet were observed higher contents of haemolymph triglyceride and free fatty acid (FFA) compared with crayfish fed FO (p < 0.05), while FB diet tended to reverse this effect. For hepatopancreas antioxidants, crayfish in the FB group showed higher levels of catalase and glutathione and lower malondialdehyde content than those in the FO group (p < 0.05). Furthermore, BT diet feeding decreased the contents of haemolymph acid phosphatase, lysozyme and total protein compared with FO diet, but FB diet tended to improve these immunological parameters. FB inclusion reversed the BT‐induced suppression of nuclear factor kappa beta mRNA expression and enhancement of mitochondrial manganese mRNA expression versus BT, implying ameliorative immunity function. Taken together, total replacement of dietary FO by BT might be detrimental to the health of crayfish, while partial substitution of dietary FO with BT neither suppresses growth nor impairs antioxidant capacity and innate immunity of crayfish.

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Effects of dietary lipid levels on sub-adult triploid rainbow trout (Oncorhynchus mykiss): 1. Growth performance, digestive ability, health status and expression of growth-related genes

Cited by 50 publications

References 49 publications

Influence of Non-protein Diets on Hepatic Metabolism and Endocrine in Barramundi (Lates calcarifer)

Influence of Non-protein Diets on Hepatic Metabolism and Endocrine in Barramundi (Lates calcarifer)

Effect of Lipid Levels on the Growth Performance and Hepatic Lipid Deposition in the Post-Larval Coho Salmon (Oncorhynchus kisutch)

Partial replacement of dietary fish oil by beef tallow does not impair antioxidant capacity and innate immunity of red swamp crayfish, Procambarus clarkii

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