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Dietary supplementation of polysaccharides from Millettia speciosa Champ. ex Benth on growth performance, immune function, antioxidant abilities and intestinal health of Wenchang chickens

文献类型： 外文期刊

作者： Liu, Yu-hang 1 ; Liu, Jie 1 ; Feng, Xin 3 ; Liu, Quan-Wei 2 ; Sun, Rui-ping 2 ; Wu, Wei 1 ; Ouyang, Kun 1 ; Yuan, Jing-li 1 ; Zhang, Yan 2 ; Wang, Xiu-ping 4 ; Zhao, Gui-Ping 1 ; Wei, Li-Min 1 ;

作者机构： 1.Hainan Acad Agr Sci, Sanya Inst, Hainan Expt Anim Res Ctr, Sanya 572025, Peoples R China

2.Hainan Acad Agr Sci, Inst Anim Husb & Vet Res, Hainan Key Lab Trop Anim Breeding & Epidem Res, Haikou 571100, Peoples R China

3.Foshan Univ, Sch Life Sci & Engn, Foshan 528051, Peoples R China

4.Hainan Tan Niu Wenchang Chicken Co Ltd, Key Lab WenChang Chicken Breeding & Feeding, Haikou 571100, Peoples R China

关键词： Millettia speciosa Champ. ex Benth polysaccharide; Growth performance; Immune function; Antioxidant ability; Intestinal health

期刊名称：BMC VETERINARY RESEARCH （ 影响因子：2.6； 五年影响因子：2.7 ）

ISSN：

年卷期： 2025 年 21 卷 1 期

页码：

收录情况： SCI

摘要： This study aims to systematically evaluate the effects of Millettia speciosa Champ. ex Benth polysaccharides (MSCP) on broiler chickens through comprehensive assessment of growth performance parameters, immune system modulation, and intestinal microbial community dynamics. A total of 576 healthy 80-day-old Wenchang chickens were randomly assigned to six experimental groups in a completely randomized design. The control group (Control) received a basal diet, while the antibiotic-treated group was supplemented with 2 g/kg chlortetracycline hydrochloride (CTC) as a positive control. Four experimental groups were supplemented with different concentrations of MSCP: 400 mg/kg (MSCP400), 800 mg/kg (MSCP800), 1600 mg/kg (MSCP1600), and 3200 mg/kg (MSCP3200). The study employed a replicated pen design with 8 replicates per treatment group, each containing 12 birds. The results showed that dietary MSCP significantly increased the final body weight (P < 0.001) and average daily gain of chickens (P = 0.017), particularly at a dosage of 800 mg/kg. We also found that serum CAT level (P = 0.030) and GSH-Px level (P = 0.011) were significantly higher in the MSCP group compared to the CTC group. Adding MSCP to the feed raised serum IL-4 level (P = 0.016) and significantly increased IgA level (P = 0.047) at 1600 mg/kg. MSCP at 400 and 800 mg/kg significantly increased villus height in the duodenum, jejunum, and ileum (P < 0.001 for duodenum and jejunum; P = 0.040 for ileum). Moreover, MSCP also increased the relative abundance of beneficial bacteria Synergistota, Parabacteroides, Megamonas and Faecalibacterium, and increased the diversity of intestinal flora. To sum up, adding MSCP to feed had a positive impact on production performance, comparable to antibiotics, particularly at a dosage of 800 mg/kg. This suggests that MSCP is a promising, safe, and effective alternative to antibiotics in feed additives.

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