The relationship between dietary methionine and growth, digestion, absorption, and antioxidant status in intestinal and hepatopancreatic tissues of sub-adult grass carp (Ctenopharyngodon idella)

Pei Wu; Yongan Zhang; Xiaoqiu Zhou; Lin Feng; Ling Tang; Weidan Jiang; Kai Hu; Yang Liu; Jun Jiang; Shengyao Kuang; Ling Tang; Wuneng Tang

首页> 外文期刊>畜牧与生物技术杂志(英文版) >The relationship between dietary methionine and growth, digestion, absorption, and antioxidant status in intestinal and hepatopancreatic tissues of sub-adult grass carp (Ctenopharyngodon idella)

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The relationship between dietary methionine and growth, digestion, absorption, and antioxidant status in intestinal and hepatopancreatic tissues of sub-adult grass carp (Ctenopharyngodon idella)

机译：日粮蛋氨酸与亚成年草鱼肠和肝胰腺组织生长，消化，吸收和抗氧化状态的关系

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Background:Methionine is an essential amino acid for fish.The present study was conducted to investigate the effects of dietary methionine on growth performance,digestive and absorptive ability,as well as antioxidant capacity in the intestine and hepatopancreas of sub-adult grass carp (Ctenopharyngodon idella).Results:Dietary methionine deficiency significantly decreased percentage weight gain (PWG),feed intake,feed efficiency and protein efficiency ratio,as well as activities of hepatopancreatic glutamate-oxaloacetate transaminase and muscle glutamate-pyruvate transaminase in sub-adult grass carp (P ＜ 0.05).Furthermore,methionine deficiency significantly reduced activities of trypsin,lipase and amylase in the intestine,Na+/K+-ATPase,alkaline phosphatase and y-glutamyl transpeptidase in three intestinal segments,and creatine kinase (CK) in the proximal intestine (P ＜ 0.05).However,an unexplained and significant increase in CK activity in the mid intestine was associated with dietary methionine deficiency.Malondialdehyde and protein carbonyl contents in the intestine and hepatopancreas were significantly increased by methionine deficiency (P ＜ 0.05),whereas anti-hydroxyl radical capacity in the hepatopancreas and intestine,and anti-superoxide anion capacity in the intestine,were significantly decreased by methionine deficiency (P ＜ 0.05).Moreover,methionine deficiency significantly decreased superoxide dismutase and glutathione reductase activities,glutathione contents in the hepatopancreas and intestine,as well as glutathione peroxidase activity in the intestine (P ＜ 0.05),whereas it significantly increased activities of catalase in the hepatopancreas and glutathione-S-transferase in the hepatopancreas and intestine (P ＜ 0.05).Conclusions:The present results demonstrated that dietary methionine deficiency induced poor growth,and decreased digestive and absorptive function and antioxidant capacity in the hepatopancreas and intestine of sub-adult grass carp.Methionine requirements for sub-adult grass carp (450-1,170 g) based on PWG,intestinal trypsin,and hepatopancreatic anti-hydroxyl radical activities were estimated to be 6.12 g/kg diet (21.80 g/kg protein),6.99 g/kg diet (24.90 g/kg protein) and 5.42 g/kg diet (19.31 g/kg protein),respectively,in the presence of 1.50 g cysteine/kg (5.35 g/kg protein).

机译：背景：蛋氨酸是鱼类必需的氨基酸。本研究旨在研究蛋氨酸对亚成年草鱼（Ctenopharyngodon）的生长性能，消化吸收能力以及肠道和肝胰腺抗氧化能力的影响。结果：饮食甲硫氨酸缺乏显着降低了亚成年草鱼的体重增加百分比（PWG），摄食量，饲料效率和蛋白质效率比以及肝胰腺谷氨酸-草酰乙酸转氨酶和肌肉谷氨酸-丙酮酸转氨酶的活性（ P ＜0.05）。此外，蛋氨酸缺乏会显着降低肠中胰蛋白酶，脂肪酶和淀粉酶的活性，降低三个肠段中的Na + / K + -ATPase，碱性磷酸酶和γ-谷氨酰转肽酶的活性，并降低近端肠的肌酸激酶（CK）。（P ＜0.05）。但是，饮食中我与肠道中CK的无法解释的显着增加有关。蛋氨酸缺乏会显着增加肠和肝胰腺中的丙二醛和蛋白质羰基含量（P ＜0.05），而肝胰腺和肠中的抗羟自由基能力以及肠中的抗超氧阴离子能力则显着下降。蛋氨酸缺乏显着降低了超氧化物歧化酶和谷胱甘肽还原酶的活性，肝胰脏和肠道中的谷胱甘肽含量以及肠中的谷胱甘肽过氧化物酶活性（P ＜0.05），而活性显着增加。肝胰腺中过氧化氢酶的含量及肝胰腺和肠中谷胱甘肽-S-转移酶的含量（P ＜0.05）。亚成年草鱼的蛋氨酸根据PWG，肠胰蛋白酶和肝胰腺抗羟基自由基活性估算的亚成年草鱼（450-1,170 g）的需求量分别为6.12 g / kg饲料（21.80 g / kg蛋白质），6.99 g / kg饲料（ 24.90 g / kg蛋白质）和5.42 g / kg饮食（19.31 g / kg蛋白质），分别存在1.50 g半胱氨酸/ kg（5.35 g / kg蛋白质）。

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《畜牧与生物技术杂志(英文版)》 |2017年第4期|970-983|共14页
作者
Pei Wu; Yongan Zhang; Xiaoqiu Zhou; Lin Feng; Ling Tang; Weidan Jiang; Kai Hu; Yang Liu; Jun Jiang; Shengyao Kuang; Ling Tang; Wuneng Tang;
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作者单位

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130,China;

Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;

Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China;

Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China;

Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China;

Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China;

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The relationship between dietary methionine and growth, digestion, absorption, and antioxidant status in intestinal and hepatopancreatic tissues of sub-adult grass carp (Ctenopharyngodon idella)

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