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Protective effect of the new prepared Atractylodes macrocephala Koidz polysaccharide on fatty liver hemorrhagic syndrome in laying hens

文献类型: 外文期刊

作者: Miao, Y. F. 1 ; Gao, X. N. 1 ; Xu, D. N. 2 ; Li, M. C. 1 ; Gao, Z. S. 1 ; Tang, Z. H. 1 ; Mhlambi, N. H. 1 ; Wang, W. J.; 1 ;

作者机构: 1.Nanjing Agr Univ, Coll Vet Med, MOE Joint Int Res Lab Anim Hlth & Food Safety, Nanjing 210095, Peoples R China

2.Zhongkai Univ Agr & Engn, Guangdong Prov Key Lab Waterfowl Hlth Breeding, Guangzhou 510225, Peoples R China

3.Ningbo Univ, Sch Marine Sci, State Key Lab Qual & Safety Agroprod, Ningbo 315211, Peoples R China

4.Chinese Acad Agr Sci, Lanzhou Vet Res Inst, State Key Lab Vet Etiol Biol, Lanzhou 730046, Peoples R China

关键词: polysaccharide; Atractylodes macrocephala Koidz; fatty liver hemorrhagic syndrome; lipid metabolism

期刊名称:POULTRY SCIENCE ( 影响因子:3.352; 五年影响因子:3.679 )

ISSN:

年卷期: 2021 年 100 卷 2 期

页码:

收录情况: SCI

摘要: Fatty liver hemorrhage syndrome (FLHS) is the most common noninfectious cause of death in backyard chickens worldwide, which can cause a sudden drop in egg production in the affected flocks and cause huge losses to the laying hens breeding industry. In this study, we prepared polysaccharide from Atractylodes macrocephala Koidz (PAMK) by one-step alcohol precipitation. The structural analysis found that PAMK with a molecular weight of 2.816 x 10(3) Da was composed of glucose and mannose, in a molar ratio of 0.582 to 0.418. Furthermore, we investigated the hepatoprotective effects of PAMK on high-energy and low-protein (HELP) diet-induced FLHS in laying hens. The results showed that the hens' livers of the HELP diet showed yellowish-brown, greasy, and soft, whereas the supplement of PAMK (200 mg/kg or 400 mg/kg) could alleviate such pathological changes. The liver index, the abdominal fat percentage, and liver injury induced by the HELP diet were reduced in PAMK (200 mg/kg or 400 mg/kg). Supplementing 200 mg/kg or 400 mg/kg PAMK showed improvements of the antioxidant capacity in laying hens. Furthermore, we found that the HELP diet increased the expression of hepatic lipogenesis genes and decreased the expression of fatty acid b-oxidation genes, which could be reversed by 200 mg/kg or 400 mg/kg PAMK supplementation. Nevertheless, there is no difference between the addition of 40 mg/kg PAMK and the HELP group. Collectively, these results showed that PAMK supplements could ameliorate HELP diet-induced liver injury through regulating activities of antioxidant enzymes and hepatic lipid metabolism. Therefore, PAMK could be a potential feedstuff additive to alleviate FLHS in laying hens.

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