High dietary starch inclusion impairs growth and antioxidant status, and alters liver organization and intestinal microbiota in largemouth bass Micropterus salmoides

2020 ◽  
Vol 26 (5) ◽  
pp. 1806-1821
Author(s):  
Yan‐Mei Zhang ◽  
Shi‐Wei Xie ◽  
Tian‐Yu Guo ◽  
Zhen‐Lu Liu ◽  
Hao‐Hang Fang ◽  
...  
Keyword(s):  
Intestinal Microbiota ◽  
Largemouth Bass ◽  
Antioxidant Status ◽  
Micropterus Salmoides ◽  
Dietary Starch

High dietary starch impairs intestinal health and microbiota of largemouth bass, Micropterus salmoides

Aquaculture ◽  
2021 ◽  
Vol 534 ◽  
pp. 736261
Author(s):  
Yue-Lang Zhou ◽  
Guang-Lun He ◽  
Tao Jin ◽  
Yong-Jun Chen ◽  
Fang-Yin Dai ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Intestinal Health ◽  
Dietary Starch

Effect of dietary starch level on growth, metabolism enzyme and oxidative status of juvenile largemouth bass, Micropterus salmoides

Aquaculture ◽  
2019 ◽  
Vol 498 ◽  
pp. 482-487 ◽  
Author(s):  
Hui-Jia Ma ◽  
Ming-Ming Mou ◽  
De-Cheng Pu ◽  
Shi-Mei Lin ◽  
Yong-Jun Chen ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Oxidative Status ◽  
Metabolism Enzyme ◽  
Growth Metabolism ◽  
Dietary Starch

Starch in aquafeeds: the benefits of a high amylose to amylopectin ratio and resistant starch content in diets for the carnivorous fish, largemouth bass (Micropterus salmoides)

2020 ◽  
Vol 124 (11) ◽  
pp. 1145-1155
Author(s):  
Songlin Li ◽  
Chunyan Sang ◽  
Giovanni M. Turchini ◽  
An Wang ◽  
Jiacan Zhang ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Largemouth Bass ◽  
Resistant Starch ◽  
Starch Content ◽  
Micropterus Salmoides ◽  
Hepatic Glycogen ◽  
Insulin Pathway ◽  
Glycogen Accumulation ◽  
Dietary Starch ◽  
High Amylose

AbstractAquafeeds for carnivorous species face a nutritional–technological conundrum: containing sufficient starch to meet specific manufacturing requirements for binding, extrusion and expansion, but ideally containing as little starch as possible owing to their limited ability to utilise carbohydrates. The present study evaluated the effects of dietary starch with different amylose to amylopectin ratios and resistant starch contents on growth performance, hepatic glycogen accumulation and glucose metabolism of an important cultured carnivorous finfish, largemouth bass (Micropterus salmoides). A common starch source (α-cassava starch (CS)) was tested as is or after being enzymatically de-branched at three different inclusion levels in diets for largemouth bass. Results showed that the increased dietary starch levels compromised performance and high dietary α-CS content led to obvious liver damage. However, the growth performances of fish fed the diets with de-branched starch (DS) were improved, and no manifest liver damages were observed even at the higher inclusion level. The increasing dietary starch contents significantly increased hepatic glycogen accumulation, but not when DS was used. High dietary starch content, without regard to starch sources, had no effect on the expression of glucose metabolism-related genes, except for down-regulation of insulin receptor expression. However, the use of dietary DS promoted the expression of genes involved in the insulin pathway and glycolysis. In conclusion, this study showed that the use of starch sources with a high amylose to amylopectin ratio and resistant starch in the feed for cultured carnivorous finfish could alleviate the hepatic glycogen deposition through regulating the insulin pathway and glycolysis.

Suitable dietary starch source and supplementation level for largemouth bass (Micropterus salmoides)

2017 ◽  
Vol 24 (2) ◽  
pp. 317 ◽  
Author(s):  
Zike LIU ◽  
Naisong CHEN ◽  
Mengle WANG ◽  
Xueyuan LIAN ◽  
Chunwei YAN ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Dietary Starch

Effects of dietary starch and lipid levels on the protein retention and growth of largemouth bass (Micropterus salmoides)

Amino Acids ◽  
2020 ◽  
Vol 52 (6-7) ◽  
pp. 999-1016 ◽  
Author(s):  
Xinyu Li ◽  
Shixuan Zheng ◽  
Xuekun Ma ◽  
Kaimin Cheng ◽  
Guoyao Wu
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Lipid Levels ◽  
Protein Retention ◽  
Dietary Starch

scholarly journals A High Starch Diet Alters the Composition of the Intestinal Microbiota of Largemouth Bass Micropterus salmoides, Which May Be Associated With the Development of Enteritis

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaoli Huang ◽  
Liang Zhong ◽  
Qin Kang ◽  
Sha Liu ◽  
Yang Feng ◽  
...  
Keyword(s):  
Intestinal Microbiota ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Experimental Period ◽  
Fish Feed ◽  
Beneficial Bacteria ◽  
Cell Hyperplasia ◽  
High Starch ◽  
Starch Diet

Starch is an inexpensive feed ingredient that has been widely used in fish feed. However, starch utilization by carnivorous fish is limited and excess starch is detrimental to the health of the organism. High starch diets often lead to liver damage, but the effects on the intestine are often overlooked. Therefore, in this study, two isonitrogenous and isolipidic semi-pure diets (NC: 0% α-starch, HC: 22% α-starch) were formulated and fed to largemouth bass (Micropterus salmoides) for 45 days. The effects of the high starch diet on the intestine of largemouth bass were comprehensively investigated by intestinal microbiota, histopathology, ultrastructural pathology, and enzymology analyses. Feeding the HC diet did not affect the growth of largemouth bass during the experimental period. However, the high starch diet led to a reduction in the diversity and abundance of intestinal microbiota in largemouth bass, with a significant increase in the abundance of harmful bacteria (Aeromonas) and a decrease in the abundance of beneficial bacteria (Clostridium, Lactobacillus, and Bifidobacterium). Feeding the HC diet caused the development of enteritis, with goblet cell hyperplasia, epithelial necrosis and detachment and inflammatory cell infiltration, and leading to enlarged apical openings and mitochondrial damage in goblet cells. Long-term feeding of the HC diet inhibited intestinal α-amylase activity. changes in the intestinal microbiota, such as an increase in Aeromonas and a decrease in Clostridium, Lactobacillus, and Bifidobacterium, may be closely related to the development of enteritis. Therefore, adding these beneficial bacteria as probiotics may be an effective way to prevent damage to the intestine of largemouth bass from a high carbohydrate diet. Our results suggest reducing the amount of starch added to the largemouth bass diets. This study provides a reference for protecting the largemouth bass gut during modern intensive culture.

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