Dietary Houttuynia cordata Thunb. extract supplementation influences on antioxidant enzymes, meat quality, and gene expressions in fresh rabbit Longissimus thoracis et lumborum meat

IF 7.1 1区农林科学 Q1 Agricultural and Biological Sciences

Meat Science Pub Date : 2025-05-05 DOI:10.1016/j.meatsci.2025.109845

Xu Wang , Shuanglong Xie , Rui Chen , Jixiao Qin , Yiqing Xu , Chao Ban , Qi Lu , Xingzhou Tian

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引用次数: 0

Abstract

This study aimed to observe the effects of Houttuynia cordata Thunb. extract (HCTE) on the antioxidant activity, meat quality and antioxidant gene expression of rabbit Longissimus thoracis et lumborum (LTL) muscles from rabbits. Rabbits were fed a control diet or a control diet supplemented with 500, 1000 or 1500 mg/kg HCTE. The addition of 1000 mg/kg HCTE increased (P < 0.05) the average daily gain and decreased (P < 0.05) the feed conversion ratio of the rabbits. Additionally, dietary HCTE supplementation increased (P < 0.05) the vitamin C, vitamin E, protocatechuic acid and quercetin concentrations and the catalase (CAT) activity in LTL muscles. The rabbits that received HCTE exhibited decreased (P < 0.05) water loss and shear force values. Moreover, HCTE supplementation increased (P < 0.05) the methionine content; increased the C18:3 n-3, C22:5 n-3, and n-3 polyunsaturated fatty acid levels; and improved (P < 0.05) the volatile profile of LTL meat from rabbits. Furthermore, dietary supplementation with 1000 mg/kg HCTE increased (P < 0.05) Nrf2, superoxide dismutase 1, glutathione peroxidase (GPX) 1, GPX2 and CAT gene expression. Overall, dietary HCTE supplementation increased vitamin, protocatechuic acid and quercetin contents, increased antioxidant activity, improved meat quality and upregulated antioxidant gene expression in the LTL muscles of rabbits. Under the experimental conditions of this study, the addition of 1000 mg/kg HCTE to the diet exerted the strongest positive effects.

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食用鱼腥草。添加提取物对新鲜兔胸腰最长肌肉抗氧化酶、肉质和基因表达的影响

本研究旨在观察鱼腥草的药理作用。提取液（HCTE）对兔胸腰最长肌（LTL）抗氧化活性、肉品质及抗氧化基因表达的影响。分别饲喂对照组饲粮和在对照组饲粮中添加500、1000和1500 mg/kg HCTE的饲粮。添加1000 mg/kg HCTE可提高(P <；0.05)，平均日增重降低(P <；0.05)，影响兔的饲料系数。此外，膳食中HCTE的添加量增加(P <；0.05)对LTL肌肉中维生素C、维生素E、原儿茶酸和槲皮素浓度及过氧化氢酶（CAT）活性的影响。接受HCTE治疗的家兔(P <；0.05)失水和剪切力值。此外，HCTE的补充增加了(P <；0.05)蛋氨酸含量；增加了C18:3 n-3、C22:5 n-3和n-3多不饱和脂肪酸水平；(P <；0.05)家兔LTL肉的挥发性特征。此外，饲粮中添加1000 mg/kg HCTE可提高(P <；0.05) Nrf2、超氧化物歧化酶1、谷胱甘肽过氧化物酶（GPX） 1、GPX2和CAT基因表达。总体而言，饲粮中添加HCTE可提高兔LTL肌肉中维生素、原儿茶酸和槲皮素含量，提高抗氧化活性，改善肉质，上调抗氧化基因表达。在本试验条件下，饲粮中添加1000 mg/kg HCTE效果最强。

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来源期刊

Meat Science 工程技术-食品科技

CiteScore

12.60

自引率

9.90%

发文量

282

审稿时长

60 days

期刊介绍： The aim of Meat Science is to serve as a suitable platform for the dissemination of interdisciplinary and international knowledge on all factors influencing the properties of meat. While the journal primarily focuses on the flesh of mammals, contributions related to poultry will be considered if they enhance the overall understanding of the relationship between muscle nature and meat quality post mortem. Additionally, papers on large birds (e.g., emus, ostriches) as well as wild-captured mammals and crocodiles will be welcomed.