Effect of dietary iron levels on growth, body composition and intestinal enzyme activities of juvenile Jian carp (Cyprinus carpio var. Jian)

Ling, Jun; Feng, Lin; LIU, Y.; Jiang, Jun; Jiang, Wei‐Dan; Hu, Kai; LI, S.-H.; Zhou, Xuzixin

doi:10.1111/j.1365-2095.2009.00699.x

Cited by 60 publications

(26 citation statements)

References 37 publications

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“…All diets were made isonitrogenous with the addition of appropriate amounts of glycine according to the method of [24]. Lysine, methionine, threonine, pyridoxine, pantothenic acid, inositol, thiamin, riboflavin, zinc and iron were prepared to meet the nutrient requirements of juvenile Jian carp according to our laboratory studies [30]–[39]. The levels of other nutrients met the requirements of common carp ( Cyprinus carpio L.) according to the NRC (1993) [40].…”

Section: Methodsmentioning

confidence: 99%

Soybean β-Conglycinin Induces Inflammation and Oxidation and Causes Dysfunction of Intestinal Digestion and Absorption in Fish

et al. 2013

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β-conglycinin has been identified as one of the major feed allergens. However, studies of β-conglycinin on fish are scarce. This study investigated the effects of β-conglycinin on the growth, digestive and absorptive ability, inflammatory response, oxidative status and gene expression of juvenile Jian carp (Cyprinus carpio var. Jian) in vivo and their enterocytes in vitro. The results indicated that the specific growth rate (SGR), feed intake, and feed efficiency were reduced by β-conglycinin. In addition, activities of trypsin, chymotrypsin, lipase, creatine kinase, Na+,K+-ATPase and alkaline phosphatase in the intestine showed similar tendencies. The protein content of the hepatopancreas and intestines, and the weight and length of the intestines were all reduced by β-conglycinin. β-conglycinin increased lipid and protein oxidation in the detected tissues and cells. However, β-conglycinin decreased superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), glutathione peroxidase (GPx) and glutathione reductase (GR) activities and glutathione (GSH) content in the intestine and enterocytes. Similar antioxidant activity in the hepatopancreas was observed, except for GST. The expression of target of rapamycin (TOR) gene was reduced by β-conglycinin. Furthermore, mRNA levels of interleukin-8 (IL-8), tumor necrosis factor-α (TNF-α), and transforming growth factor-β (TGF-β) genes were increased by β-conglycinin. However, β-conglycinin increased CuZnSOD, MnSOD, CAT, and GPx1b gene expression. In conclusion, this study indicates that β-conglycinin induces inflammation and oxidation, and causes dysfunction of intestinal digestion and absorption in fish, and finally reduces fish growth. The results of this study provide some information to the mechanism of β-conglycinin-induced negative effects.

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Section: Methodsmentioning

confidence: 99%

Soybean β-Conglycinin Induces Inflammation and Oxidation and Causes Dysfunction of Intestinal Digestion and Absorption in Fish

et al. 2013

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“…The molecular weight distribution of peptide was determined by matrix-assisted laser desorption ionization time-offlight (TOF) mass spectrometry according to Gobom et al (2002). Zinc, ferrum, pyridoxine, pantothenic acid, inositol, thiamine, and riboflavin were formulated to meet the nutrient requirements of Jian carp according to our laboratory previous studies by Tan et al (2011), Ling et al (2010, He et al (2009), Wen et al (2009), Huang et al (2011, respectively. Other nutrients met the requirements of common carp according to NRC (2011).…”

Section: Experimental Design and Dietsmentioning

confidence: 99%

Supplementation of enzyme-treated soy protein saves dietary protein and promotes digestive and absorptive ability referring to TOR signaling in juvenile fish

Xiao

Jiang

Feng

et al. 2017

Fish Physiol Biochem

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This study was conducted to evaluate the effect of enzyme-treated soy protein (ETSP) supplementation in the low-protein diet on growth performance, digestive and absorptive capacities, and related signaling molecules' gene expressions in juvenile Jian carp. The results showed that percent weight gain (PWG), specific growth rate (SGR), and feed intake (FI) were decreased by reducing dietary protein from 34 to 32% (P < 0.05). Supplying low-protein diet with optimal ETSP increased previously mentioned indices of juvenile Jian carp (P < 0.05), which also had no significant difference with the high-protein diet (34%CP) (P > 0.05). Compared with the low-protein diet, appropriate ETSP supplementation in the low-protein diet increased (P < 0.05) (1) the trypsin, lipase, and amylase activities in the hepatopancreas; (2) cholecystokinin concentration in the proximal intestine; (3) the γ-glutamyl transpeptidase (γ-GT), alkaline phosphatase (AKP), and Na + /K + -ATPase activities in all intestinal segments; and (4) the messenger RNA (mRNA) levels of trypsin, lipase, and amylase in hepatopancreas and γ-GT in the mid (MI) and distal (DI) intestine, alkaline phosphatase in MI, and Na + /K + -ATPase and target of rapamycin in all intestinal segments. At the same time, appropriate ETSP supplementation in the low-protein diet downregulated the mRNA levels of AKP in the DI and eIF4E-binding protein 2 in all intestinal segments (P < 0.05). In conclusion, adding 10 g ETSP/kg diet in the low-protein diet can restore the growth performance and digestive and absorptive abilities to the levels in group with 34% dietary protein. Supplementation of optimal ETSP in the low-protein diet enhanced the digestive and absorptive abilities and regulated the signaling molecules related to the TOR signaling pathway.

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“…Diets were made isonitrogenous by supplementation of glycine. Zinc, iron, pyridoxine, pantothenic acid, inositol, thiamin and riboflavin were formulated to meet the nutrient requirements of Jian carp according to previous studies conducted in our laboratory (He et al 2009;Jiang et al 2009;Wen et al 2009;Ling et al 2010; Tan et al 2011). The levels of other nutrients met the requirements for common carp according to the NRC (National Research Council).…”

Section: Aquaculture Nutritionmentioning

confidence: 99%

Growth, body composition, intestinal enzyme activities and microflora of juvenile Jian carp (Cyprinus carpiovar. Jian) fed graded levels of dietary valine

Dong

Feng²,

Kuang³

et al. 2012

Aquacult Nutr

Self Cite

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This study investigated the effects of valine on growth, intestinal enzyme activities and microflora in juvenile Jian carp (Cyprinus carpio var. Jian). A total of 1200 fish with an average initial weight of 9.67 ± 0.03 g were fed diets containing 5.3 (unsupplemented control), 8.7, 11.8, 14.9, 18.7 and 20.1 g valine kg−1 diet for 60 days. Results indicated that the specific growth rate, feed efficiency, body protein and lipid content of fish were significantly improved by the dietary valine (P < 0.05). The hepatopancreas weight and activities of trypsin, amylase, lipase, chymotrypsin, glutamate oxaloacetate transaminase (GOT) and glutamate pyruvate transaminase (GPT) took the similar trends. Similarly, the optimum levels of dietary valine induced increases in the intestinal length, weight, folds height and activities of alkaline phosphatase, gamma‐glutamyl transpeptidase and creatine kinase. In contrast, the trends of muscle GOT activity and plasma ammonia content were opposite. Intestinal Aeromonas, Escherichia coli, Lactobacillus and Bacillus were changed by dietary valine supplementations. The dietary valine requirement for Jian carp (9.67–76.4 g) based on SGR was 13.7 g valine kg−1 diet (4.0 g valine 100 g−1 CP). Together, these results indicated that valine improved fish growth, digestive and absorptive ability.

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Effect of dietary iron levels on growth, body composition and intestinal enzyme activities of juvenile Jian carp (Cyprinus carpio var. Jian)

Cited by 60 publications

References 37 publications

Soybean β-Conglycinin Induces Inflammation and Oxidation and Causes Dysfunction of Intestinal Digestion and Absorption in Fish

Soybean β-Conglycinin Induces Inflammation and Oxidation and Causes Dysfunction of Intestinal Digestion and Absorption in Fish

Supplementation of enzyme-treated soy protein saves dietary protein and promotes digestive and absorptive ability referring to TOR signaling in juvenile fish

Growth, body composition, intestinal enzyme activities and microflora of juvenile Jian carp (Cyprinus carpiovar. Jian) fed graded levels of dietary valine

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