Apparent digestibility coefficients of animal and plant feed ingredients for juvenile<i>Pseudobagrus ussuriensis</i>

Che, Jianfang; Su, Baohui; Tang, B.; Bu, Xianyong; Li, J.; Lin, Youping; Yang, Yuhong; Ge, Xianping

doi:10.1111/anu.12481

Cited by 17 publications

(18 citation statements)

References 42 publications

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“…Furthermore, the muscle thickness of the distal intestine was also affected by 11S. The thickness of the intestinal muscle layer can reflect the peristaltic ability of the intestine, thereby preventing the occurrence of intestinal diseases to a certain extent ( 49 ). This shows that after adding a high dose of 11S to the feed, the peristalsis of the distal intestine is inhibited, while a low dose of 11S could promote peristalsis of the distal intestine.…”

Section: Discussionmentioning

confidence: 99%

MHC II-PI3K/Akt/mTOR Signaling Pathway Regulates Intestinal Immune Response Induced by Soy Glycinin in Hybrid Grouper: Protective Effects of Sodium Butyrate

et al. 2021

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Soy glycinin (11S) is involved in immune regulation. As an additive, sodium butyrate (SB) can relieve inflammation caused by 11S. To further delve into the mechanisms. A diet containing 50% fishmeal was the control group (FM group), and the experimental groups consisted of the FM group baseline plus 2% glycinin (GL group), 8% glycinin (GH group), and 8% glycinin + 0.13% sodium butyrate (GH-SB group). The specific growth ratio (SGR), feed utilization, and density of distal intestinal (DI) type II mucous cells were increased in the GL group. In the serum, IFN-γ was significantly upregulated in the GL group, and IgG and IL-1β were upregulated in the GH group. IgG, IL-1β, and TNF-α in the GH-SB group were significantly downregulated compared to those in the GH group. The mRNA levels of mTOR C1, mTOR C2, and Deptor were upregulated in the GL, GH, and GH-SB groups in the DI compared with those in the FM group, while the mRNA levels of mTOR C1 and Deptor in the GH group were higher than those in the GL and GH-SB groups. 4E-BP1, RICTOR, PRR5, MHC II, and CD4 were upregulated in the GH group. TSC1, mLST8, and NFY mRNA levels in the GL and GH-SB groups were upregulated compared with those in the FM and GH groups. Western blotting showed P-PI3KSer294/T-PI3K, P-AktSer473/T-Akt, and P-mTORSer2448/T-mTOR were upregulated in the GH group. Collectively, our results demonstrate that low-dose 11S could improve serum immune by secreting IFN-γ. The overexpression of IgG and IL-1β is the reason that high-dose 11S reduces serum immune function, and supplementing SB can suppress this overexpression. Low-dose 11S can block the relationship between PI3K and mTOR C2. It can also inhibit the expression of 4E-BP1 through mTOR C1. High-dose 11S upregulates 4E-BP2 through mTOR C1, aggravating intestinal inflammation. SB could relieve inflammation by blocking PI3K/mTOR C2 and inhibiting 4E-BP2. Generally speaking, the hybrid grouper obtained different serum and DI immune responses under different doses of 11S, and these responses were ultimately manifested in growth performance. SB can effectively enhance serum immunity and relieve intestinal inflammation caused by high dose 11S.

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Section: Discussionmentioning

confidence: 99%

MHC II-PI3K/Akt/mTOR Signaling Pathway Regulates Intestinal Immune Response Induced by Soy Glycinin in Hybrid Grouper: Protective Effects of Sodium Butyrate

et al. 2021

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“…Alternative feed raw materials are promising FM replacements in aquaculture feed formulation. As such, numerous studies have reported the effect of alternative raw materials on fish growth performance and nutrient digestibility [2,39,[44][45][46][47]. Due to the microbiome being an emerging field of research, the effect of alternative feed raw materials on fish intestinal microbiota is yet to be thoroughly explored.…”

Section: Discussionmentioning

confidence: 99%

Alternative Feed Raw Materials Modulate Intestinal Microbiota and Its Relationship with Digestibility in Yellowtail Kingfish Seriola lalandi

Dam

Booth

Pirozzi

et al. 2020

Fishes

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Gut microbiota plays a crucial role in nutrient digestibility and fish health. This study aimed to investigate the effects of alternative feed raw materials on the bacterial communities in the distal intestine and its relationship with nutrient digestibility in yellowtail kingfish (YTK), Seriola lalandi. Two 4-week digestibility trials were conducted to evaluate fish meal (FM), two sources of poultry by-product meal (PBM-1 & PBM-2), blood meal (BLM), faba bean meal (FBM), corn gluten meal (CGM), soy protein concentrate (SPC) and wheat flour (WH). The nutrient digestibility value was determined using the stripping fecal collection method. Bacterial communities were characterized by high-throughput sequencing based on V3-V4 region of the 16S rRNA gene. The most abundant phylum identified in the present study was Proteobacteria. A significant change in the distal intestine was observed in fish fed diets containing CGM and BLM, characterized by a reduction of species richness and diversity. Additionally, significant correlation between nutrient digestibility and intestinal microbiota was observed. Allivibrio, Vibrio, Curvibacter, Ruminococcaceae, and Clostridium were positively correlated, whereas Ralstonia genus was negatively correlated with nutrient digestibility. This study demonstrated that intestinal microbiota could be a useful tool for evaluating the digestibility of feed raw materials; however, further culture-based study is needed to confirm this observation.

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“…Apparent digestibility was determined according to the method of Bu et al () and Che et al (). Chromium oxide (Cr 2 O 3 ) was a component of diets as an inert indicator to estimate the apparent digestibility coefficient of nutrients in diets.…”

Section: Methodsmentioning

confidence: 99%

Effects of replacing fish meal with mussel (Cristaria plicata) meat on growth, digestive ability, antioxidant capacity and hepatic IGF-I gene expression in juvenile Ussuri catfish (Pseudobagrus ussuriensis)

et al. 2019

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An 8-week feeding trial was implemented to evaluate the effects of replacing fish meal (FM) with mussel (Cristaria plicata) meat (MM) on growth, digestive ability, antioxidant capacity and hepatic insulin-like growth factor I (IGF-I) gene expression of juvenile Ussuri catfish (Pseudobagrus ussuriensis). Three isonitrogenous and isolipidic diets were formulated to include 0, 177.5 and 355.1 g/kg of MM, accordingly, replacing 0% (M 0 , control), 50% (M 1 ) and 100% (M 2 ) of FM protein, respectively. The results showed that the final body weight, weight gain, specific growth rate and feed intake were gradually decreased with dietary MM protein levels increased, but there were no significant difference between M 0 and M 1 groups (p > 0.05). The protein efficiency ratio was increased significantly with dietary MM inclusion (p < 0.05). The apparent digestibility coefficient of dry matter, crude lipid and gross energy gradually increased with increasing dietary MM protein levels, but the apparent digestibility coefficient of crude protein was not significantly affected by MM protein supplementation (p > 0.05). Fish fed diet, M 0 and M 1 remained unaffected significantly on activities of alpha-amylase and pepsin (p > 0.05), but fish fed diet M 2 had the highest activities of alpha-amylase and pepsin. Fish fed diet M 1 or M 2 had significantly lower hepatic total antioxidant capacity, superoxide dismutase and the higher malondialdehyde level compared to fish fed diet M 0. In addition, no significant difference was observed in hepatic IGF-I gene expression level for fish fed diet M 0 and diet M 1 , and fish fed diet M 2 showed significantly lower hepatic IGF-I gene expression level. Therefore, we can conclude that MM protein can successfully substitute 50% of FM protein without significantly negative effect on growth, nutrient utilization, and hepatic IGF-I gene expression for juvenile Ussuri catfish, but the antioxidant capacity was negatively affected in the present study, what is more, the total replacement of FM by MM in diet may result in the inhibition of the growth and antioxidant capacity of fish. K E Y W O R D Santioxidant capacity, digestive ability, growth, mussel meat, ussuri catfish The first two authors contributed equally to this work.

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Apparent digestibility coefficients of animal and plant feed ingredients for juvenilePseudobagrus ussuriensis

Cited by 17 publications

References 42 publications

MHC II-PI3K/Akt/mTOR Signaling Pathway Regulates Intestinal Immune Response Induced by Soy Glycinin in Hybrid Grouper: Protective Effects of Sodium Butyrate

MHC II-PI3K/Akt/mTOR Signaling Pathway Regulates Intestinal Immune Response Induced by Soy Glycinin in Hybrid Grouper: Protective Effects of Sodium Butyrate

Alternative Feed Raw Materials Modulate Intestinal Microbiota and Its Relationship with Digestibility in Yellowtail Kingfish Seriola lalandi

Effects of replacing fish meal with mussel (Cristaria plicata) meat on growth, digestive ability, antioxidant capacity and hepatic IGF-I gene expression in juvenile Ussuri catfish (Pseudobagrus ussuriensis)

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