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Guanidine Acetic Acid Alters Tissue Bound Amino Acid Profiles and Oxidative Status in Finishing Pigs

文献类型： 外文期刊

作者： Cui, Yiyan 1 ; Yu, Miao 1 ; Li, Zhenming 1 ; Song, Min 1 ; Tian, Zhimei 1 ; Deng, Dun 1 ; Ma, Xianyong 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Livestock & Poultry Breeding, Guangzhou 510640, Peoples R China

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

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

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

5.Maoming Branch, Guangdong Lab Lingnan Modern Agr, Maoming 525000, Peoples R China

关键词： guanidine acetic acid; pig; amino acid; longissimus thoracis; myocardium

期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2023 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Simple Summary: This study aims to investigate the effects of GAA on carcass traits, plasma biochemical parameters, tissue antioxidant capacity, and tissue amino acid contents in finishing pigs. The results of this study indicate that GAA enhanced the plasma biochemical parameters, oxidative status, and amino acid profiles of the heart and longissimus thoracis muscle in finishing pigs. This study aims to investigate the effects of guanidine acetic acid (GAA) on carcass traits, plasma biochemical parameters, tissue antioxidant capacity, and tissue-bound amino acid contents in finishing pigs. Seventy-two 140-day-old (body weight 86.59 +/- 1.16 kg) crossbred pigs (Duroc x Landrace x Large White) were randomly assigned into four treatments with six replicate pens and three pigs per pen, which were fed the basal diets supplemented with 0, 0.05%, 0.10%, or 0.15% GAA, respectively. The plasma glucose concentration decreased, and creatine kinase activity and levels of GAA and creatine increased with the dietary GAA concentration. GAA linearly improved creatine content in the longissimus thoracis muscle (LM) and heart. The activities of superoxide dismutase, total antioxidant capacity, and glutathione peroxidase increased linearly in tissue or/and plasma, while the contents of malondialdehyde and protein carbonyl decreased linearly. GAA improved the contents of multiple-bound amino acids (such as proline or isoleucine) in the myocardium and LM. In conclusion, GAA enhanced the plasma biochemical parameters, oxidative status, and bound amino acid profiles of the heart and LM in finishing pigs.

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