Comparative Analysis of Intestinal Characteristics of Largemouth Bass (Micropterus salmoides) and Intestinal Flora with Different Growth Rates

Su, Xin; Ji, Da; Yao, Junjie; Zou, Yuanlong; Yan, Mengzhi

doi:10.3390/fishes7020065

Cited by 14 publications

(6 citation statements)

References 33 publications

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“…The intestinal FH and MT are the well-defined parameters for the health status in the intestine of fish [27]. The absorption of nutrients in the intestine is determined by the villi length of the intestinal fold [28].…”

Section: Discussionmentioning

confidence: 99%

“…The beneficial effects of medical plant-derived extracts on intestinal microbiota are increasingly reported in aquaculture [5,31,32]. The indexes of OTUs, Chao 1, and Shannon are usually used to evaluate the species abundance and richness of the intestine microbiota [27,33]. A high microbiota diversity is generally considered beneficial for intestinal health [34].…”

Section: Discussionmentioning

confidence: 99%

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Effects of Macleaya cordata Extract on Growth Performance, Serum Biochemical Parameters, and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

Chen

Huang

Zhai

2022

Fishes

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The present trial was conducted to evaluate the supplementation effects of Macleaya cordata extract (MCE) on growth performance, serum biochemical parameters, and intestinal health of the juvenile American eel (Anguilla rostrata). The 480 juvenile American eels (10.93 ± 0.06 g) were randomly divided into four groups. They were fed on diets supplemented with MCE levels of 0, 25 mg/kg, 50 mg/kg, and 100 mg/kg for ten weeks, respectively. The 50 mg/kg or 100 mg/kg MCE could significantly improve growth performance, and increase the activities of acid phosphatase and alkaline phosphatase, as well as the level of high-density lipoprotein cholesterol. These levels of MCE also decreased the levels of D-lactate acid, triglyceride, and total cholesterol and the activities of aspartate aminotransferase, alanine aminotransferase, and diamine oxidase. The antioxidant ability, muscular thickness, and fold height of the intestine were enhanced by 50 mg/kg or 100 mg/kg MCE. There was no significant difference in the above parameters of groups fed with 50 mg/kg or 100 mg/kg of MCE. The beneficial effects on the intestinal microbiota were demonstrated in the group fed with 50 mg/kg MCE. In conclusion, the 50 mg/kg MCE could be used in the diet to improve the growth performance and health status of the juvenile American eels.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of Macleaya cordata Extract on Growth Performance, Serum Biochemical Parameters, and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

Chen

Huang

Zhai

2022

Fishes

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“…The study of intestinal histology can help to investigate the effect of diets on intestinal morphology and health of farmed fish. The intestine, pivotal in nutrient metabolism and absorption, and its histology, particularly villi dimensions, offer insights into absorption efficacy, contributing to growth (Guan et al, 2021; Su et al, 2022). In this study, the intestinal histology analysis revealed that chitosan supplementation in A. stellatus 's diet led to a notable increase in both the height and width of intestinal villi.…”

Section: Discussionmentioning

confidence: 99%

Effect of dietary chitosan on the growth performance, intestinal histology and growth‐related gene expression in stellate sturgeon (Acipenser stellatus) juveniles

Zakeri,

Pazooki,

Mohseni

et al. 2024

Animal Physiology Nutrition

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As sturgeon breeding has proliferated, there has been a heightened demand for growth stimulators in their diets. This study aimed to determine the impact of dietary chitosan on growth performance, whole‐body proximate composition, growth‐related gene expression, and intestinal histology in juvenile Acipenser stellatus. A total of 180 A. stellatus juveniles with an average weight of 31.90 ± 0.73 g were fed with diets containing 0 (control), 1.5, 3.0, 4.5, and 6.0 g chitosan.kg−1 basic diet for eight weeks. The findings revealed a significant enhancement in growth performance with rising chitosan concentrations. Furthermore, chitosan supplementation upregulated the expression of the growth hormone gene in both brain and liver tissues. In liver samples, the most pronounced expression of the insulin‐like growth factor‐1 gene was noted at 6.0 g chitosan.kg−1, while in brain samples, peak expressions were observed in both the 4.5 and 6.0 g chitosan.kg−1 treatments. While the whole‐body proximate composition remained relatively stable, there was a notable decrease in whole‐body lipids with the escalation of chitosan dosage. Intestinal villi dimensions, both height and width, were amplified in the chitosan‐supplemented groups compared to controls. In summation, chitosan supplementation showed promise in bolstering growth performance, refining intestinal morphology, and enhancing growth‐related gene expression. Analysis of the polynomial regression of weight gain and specific growth rate revealed that the optimum dietary chitosan requirements in A. stellatus were 5.32 and 5.21 g chitosan.kg−1, respectively.

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“…Intestinal microbes play a key role in nutrient digestion, absorption and maintenance of the homeostasis of the host metabolism and immune systems [ 48 ]. Generally, the indexes of OTUs, Chao1 and Simpson obtained by alpha diversity analysis are used to reflect the species diversity and abundance of intestinal microbiota [ 49 , 50 ]. It was verified that the diversity or abundance of the intestinal microbiota of juvenile American eels was significantly affected by the dietary histamine levels at 350 mg/kg or 534 mg/kg [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of White Fish Meal Replaced by Low-Quality Brown Fish Meal with Compound Additives on Growth Performance and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

Lu,

Yu,

Liang

et al. 2023

Animals

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With a reduced supply and increased price of white fish meal (WFM), the exploration of a practical strategy to replace WFM is urgent for sustainable eel culture. A 70-day feeding trial was conducted to evaluate the effects of replacing WFM with low-quality brown fish meal (LQBFM) with compound additives (CAs) on the growth performance and intestinal health of juvenile American eels (Anguilla rostrata). The 300 fish (11.02 ± 0.02 g/fish) were randomly distributed in triplicate to four groups (control group, LQBFM20+CAs group, LQBFM30+CAs group and LQBFM40+CAs group). They were fed the diets with LQBFM replacing WFM at 0, 20%, 30% and 40%, respectively. The CAs were a mixture of Macleaya cordata extract, grape seed proanthocyanidins and compound acidifiers; its level in the diets of the trial groups was 0.50%. No significant differences were found in the growth performance between the control and LQBFM20+CAs groups (p > 0.05), whereas those values were significantly decreased in LQBFM30+CAs and LQBFM40+CAs groups (p < 0.05). Compared to the control group, the activity of glutamic-pyruvic transaminase was significantly increased in LQBFM30+CAs and LQBFM40+CAs groups, while lysozyme activity and complement 3 level were significantly decreased in those two groups (p < 0.05). There were decreased antioxidant potential and intestinal morphological indexes in the LQBFM30+CAs and LQBFM40+CAs groups, and no significant differences in those parameters were observed between the control group and LQBFM20+CAs group (p > 0.05). The intestinal microbiota at the phylum level or genus level was beneficially regulated in the LQBFM20+CAs group; similar results were not shown in the LQBFM40+CAs group. In conclusion, with 0.50% CA supplementation in the diet, LQBFM could replace 20% of WFM without detrimental effects on the growth and intestinal health of juvenile American eels and replacing 30% and 40%WFM with LQBFM might exert negative effects on this fish species.

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Comparative Analysis of Intestinal Characteristics of Largemouth Bass (Micropterus salmoides) and Intestinal Flora with Different Growth Rates

Cited by 14 publications

References 33 publications

Effects of Macleaya cordata Extract on Growth Performance, Serum Biochemical Parameters, and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

Effects of Macleaya cordata Extract on Growth Performance, Serum Biochemical Parameters, and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

Effect of dietary chitosan on the growth performance, intestinal histology and growth‐related gene expression in stellate sturgeon (Acipenser stellatus) juveniles

Effects of White Fish Meal Replaced by Low-Quality Brown Fish Meal with Compound Additives on Growth Performance and Intestinal Health of Juvenile American Eel (Anguilla rostrata)

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