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Citrus Extract Improves the Absorption and Utilization of Nitrogen and Gut Health of Piglets

文献类型： 外文期刊

作者： Cui, Yiyan 1 ; Tian, Zhimei 1 ; Wang, Gang 1 ; Ma, Xianyong 1 ; Chen, Weidong 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Peoples R China

2.State Key Lab Livestock & Poultry Breeding, Guangzhou 510640, Peoples R China

3.Minist Agr, Key Lab Anim Nutr & Feed Sci South China, Guangzhou 510640, Peoples R China

4.Guangdong Key Lab Anim Breeding & Nutr, Guangzhou 510640, Peoples R China

5.Guangdong Engn Technol Res Ctr Anim Meat Qual & S, Guangzhou 510640, Peoples R China

关键词： citrus extract; piglet; plasma free amino acids; intestinal morphology; intestinal enzymes; ammonia nitrogen; nitrogen; phosphorus

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Simple Summary Weaning can cause weaning stress and reduce the growth performance of piglets. Citrus extract has strong anti-oxidant and anti-inflammatory effects which can improve animal health. The aim of this study was to evaluate the efficacy of citrus extract as a substitute for antibiotics in piglet diets. The results of this study indicate that citrus extract increased the concentrations of plasma essential amino acids, improved intestinal morphology and digestive enzymes activity. Abstract The purpose of this study was to investigate the effects of citrus extract (CE) on plasma free amino acids, intestinal morphology and enzymes activity, fecal nitrogen and phosphorus emissions in piglets. The experiment was performed on 144 weaned piglets (Duroc x Landrace x Large White) divided into three groups. Control (CON), fed a basic diet; Antibiotic (ANTI), fed a basic diet supplemented with 75 g/t chlortetracycline; Citrus extract (CE), fed a basic diet supplemented with 300 mL/t CE. The albumin content of the CE group was significantly higher than the CON group. Compared with the CON and ANTI groups, the CE group had increased concentrations of plasma total essential amino acids and threonine. Compared with the CON group, CE increased the alpha-aminoadipic acid concentration, while compared with ANTI group, it increased the 3-methylhistidine concentration. Compared with the CON group, the crypt depth of duodenum, jejunum and ileum decreased, and the ratio of villus height to crypt depth of ileum increased in the ANTI and CE groups. CE increased the activity of alkaline phosphatase and lipase in duodenum, and the activity of alkaline phosphatase and trypsin in jejunum. In brief, CE improved the absorption and utilization of nitrogen, intestinal morphology and digestive enzymes activity.

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