The Protein Sparing Effects Of High Lipid Levels In Diets For Rainbow Trout (Oncorhynchus Mykiss, W. 1792) With Special Reference To Reduction Of Total Nitrogen Excretion

Yiğit, Murat; Yardım, Öztekin; Koshio, Shunsuke

doi:10.46989/001c.20314

Cited by 17 publications

(3 citation statements)

References 21 publications

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“…This result could be related to the higher lipase activity in the foregut and the ADC of crude lipid of fish fed the FK8.27 diet, which suggests enhanced lipid digestion of fish. Many studies have also demonstrated the protein-sparing effect of lipid (Yigit et al, 2002;Ai et al, 2004;Aliyu-Paiko et al, 2010;Li et al, 2017;Wang L. et al, 2019). Furthermore, the lipid composition of FK is different from that of the FM, being rich in phospholipids, consisting mainly of 16:0 and 16:1 fatty acids (Calysta data).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Methanotroph (Methylococcus capsulatus, Bath) Bacteria Meal (FeedKind®) as an Alternative Protein Source for Juvenile Black Sea Bream, Acanthopagrus schlegelii

Liu

Chen

et al. 2021

Front. Mar. Sci.

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Single-cell proteins are attracting growing attention as viable alternatives for fishmeal (FM) in aquatic feed. Methanotroph (Methylococcus capsulatus, Bath) bacteria meal FeedKind® (FK) is a type of single cell protein with high protein content (75.14%) and desirable amino acids profile, produced by Methylococcus capsulatus (Bath) living on methane consumption. The present study evaluated the potential of replacing FM with FK in the diet of black sea bream (Acanthopagrus schlegelii). Five iso-energetic and iso-nitrogenous diets were designed with FK replacing 0, 4.13, 8.27, 16.53, and 24.80% FM protein in the basal diet (40% FM content), respectively. All the diets were fed to three replicates of fish (initial weight 6.56 ± 0.02 g) for 70 days. After the feeding trial, replacing dietary 8.27% FM protein with FK significantly improved the weight gain and specific growth rate of fish (P < 0.05), while other groups showed no significant difference in the growth performance (P > 0.05). The fish fed diets with 8.27 and 16.53% replacement levels exhibited significantly increased feeding rates. The 8.27% FK diet significantly increased the whole-body and muscle crude protein contents, apparent digestibility of crude lipid, foregut, and midgut amylase activities. The microvillus density in the midgut of fish fed the 24.80% FK diet significantly increased. The diet with 8.27% FK increased the serum triglyceride content of the fish, while the 24.80% FK diet reduced the serum triglyceride, total cholesterol, and low-density lipoprotein cholesterol contents of the fish. In conclusion, the results indicated that replacing dietary FM protein with up to 24.80% FK had no adverse effects on the growth of black sea bream, whilst replacing 8.27% FM protein with FK enhanced its growth performance and feed utilization.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Methanotroph (Methylococcus capsulatus, Bath) Bacteria Meal (FeedKind®) as an Alternative Protein Source for Juvenile Black Sea Bream, Acanthopagrus schlegelii

Liu

Chen

et al. 2021

Front. Mar. Sci.

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“…A suitable protein/energy (P/E) ratio may favor the growth performance of fish due to the proteinsparing effect of lipid. Previously, protein-sparing effect of lipid has been reported in Atlantic cod (Gadus morhua L.) [2], rainbow trout (Oncorhynchus mykiss) [3], cobia (Rachycentron canadum) [4], and brown-marbled grouper (Epinephelus fuscoguttatus (Forskal)) [5]. In recent years, there is a popular trend to increase dietary lipid levels in fish feed to improve protein sparing, growth performance, and farm productivity.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis and Histological Alteration of Black Sea Bream (Acanthopagrus schlegelii) Liver Fed Different Protein/Energy Ratio Diets

Wang

Sagada

Wang

et al. 2022

Aquaculture Nutrition

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To systematically investigate the effects of different protein/energy (P/E) ratio diets on the microstructure and metabolic response of black sea bream liver, fish (initial weight 11.20 ± 0.20 g) were fed three isoenergetic (20.9 kJ/g) diets with varying protein/lipid levels (LR, 28.8% protein/26.3% lipid; MR, 37.5% protein/20.9% lipid; and HR, 42.8% protein/17.3% lipid, P/E ratio increased gradually) for 8 weeks. The lipid and glycogen contents in the liver decreased with increasing dietary P/E ratios ( P < 0.05 ). Histological observation found that the liver of the LR group presented many adipose cells, along with polarized nucleus, massive lipid droplets, and unclear organelle structure. The liver cellular structures of MR and HR groups were normal with some small unmatured lipid droplets. RNA-Seq was applied to investigate the hepatic transcriptome response to different P/E ratio diets of black sea bream. Different levels of gene expressions were identified in the signaling pathways related to energy metabolism, amino acid metabolism, lipid metabolism, carbohydrate metabolism, immune system, etc. The LR diet inhibited the genes related to lipid oxidation, glycolysis, and protein metabolism, whereas the HR diet inhibited those of glycolysis and protein catabolism. The present study provides a comprehensive understanding of the molecular mechanisms behind the effects of different P/E ratio diets on the liver metabolism of black sea bream.

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“…Increasing the energy density in diets has been suggested to spare protein for several fish species, especially salmon (Einen & Roem, 1997), rainbow trout (Yigit et al 2002) and catfish (Kim et al, 2012).…”

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confidence: 99%

Can dietary with a taurine supplement improve lipid utilization, growth performance, haemolymph parameters and immune responses of white shrimp ( Litopenaeus vannamei )?

Liou

Yang³

2021

Aquac Res

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Pacific white shrimp (Litopenaeus vannamei) is the dominant shrimp species in the world. The total production volume of the white shrimp exceeded tiger shrimp, contributing about 63% of global farmed shrimp production, about 4.97 million tons (FAO, 2020).The optimal dietary protein requirement of white shrimp has been reported as being from 30 to 44%, depending on the shrimp size, protein quality and energy content (NRC, 2011). Besides that, the highest weight gain of white shrimp was generally achieved at dietary lipid levels of 5%-9% (NRC, 2011) and dietary carbohydrate levels of 19%-25% (Wang et al., 2015).Dietary lipids play essential roles as sources of energy and essential fatty acids for fish growth and development (Glencross, 2009).

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The Protein Sparing Effects Of High Lipid Levels In Diets For Rainbow Trout (Oncorhynchus Mykiss, W. 1792) With Special Reference To Reduction Of Total Nitrogen Excretion

Cited by 17 publications

References 21 publications

Evaluation of Methanotroph (Methylococcus capsulatus, Bath) Bacteria Meal (FeedKind®) as an Alternative Protein Source for Juvenile Black Sea Bream, Acanthopagrus schlegelii

Evaluation of Methanotroph (Methylococcus capsulatus, Bath) Bacteria Meal (FeedKind®) as an Alternative Protein Source for Juvenile Black Sea Bream, Acanthopagrus schlegelii

Transcriptomic Analysis and Histological Alteration of Black Sea Bream (Acanthopagrus schlegelii) Liver Fed Different Protein/Energy Ratio Diets

Can dietary with a taurine supplement improve lipid utilization, growth performance, haemolymph parameters and immune responses of white shrimp ( Litopenaeus vannamei )?

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