摘要
The present study investigated the effects of replacing part of the basal diet with 2-stage fermented feed (FF) (soybean hulls:rapeseed cake (2:1, m/m)) on the growth performance, immunity, antioxidant capacity, and intestinal health of Chahua chicken. A total of 160 Chahua chickens were randomly divided into 4 groups to receive a control diet or diet with 5%, 10%, or 15% of the basal diet replaced by FF, respectively for 56 d. The results showed that FF significantly improved the average daily gain (ADG) and average daily feed intake (ADFI) of Chahua chickens (P < 0.05). Furthermore, the serum immunoglobulin (Ig) A, glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) in Chahua chicken receiving the diet added with 15% FF significantly increased (P < 0.05). Chahua chicken in both the 10% and 15% groups showed increased serum IgG and IgM and decreased malondialdehyde. Serum interleukin-2 and interferon-gamma significantly increased in all FF groups. Compared with the CON group, higher ileal villus height (VH) was found in the 10% FF group. Treatment with FF significantly increased the ileal villus height/crypt depth (VH/CD) ratio, jejunal VH, and jejunal VH/CD ratio while reducing ileal and jejunal CD. The modified gut microbiota composition was observed in the Chahua chicken fed a diet containing FF, in particular, with the increased abundance of Faecalibacterium and Lactobacillus. The abundance of Lactobacillus significantly increased in the 10% and 15% FF groups (all P < 0.05). Correlation analysis revealed a positive correlation between Lactobacillus and VH (R = 0.38, P = 0.10, Figure 3B), AH/CD ratio (R = 0.63, P = 0.003), and a negative correlation with CD (R = −0.72, P = 0.001). These results indicate that FF improves immunity, antioxidant capacity, and intestinal health and consequently enhances growth performance in Chahua chicken.
摘要译文
本研究调查了用2级发酵饲料（FF）（大豆船体：菜籽蛋糕（2：1，m/m））对基础饮食的一部分的影响对生长性能，免疫力，抗氧化能力和肠道的影响chahua鸡肉的健康。总共将160只Chahua鸡分为4组，以接受5％，10％或15％基础饮食的对照饮食或饮食，分别被FF取代，为56 d。结果表明，FF显着改善了Chahua鸡的平均每日增益（ADG）和平均每日饲料摄入量（ADFI）（P <0.05）。此外，在Chahua鸡肉中，血清免疫球蛋白（Ig）A，谷胱甘肽过氧化物酶（GSH-PX）和超氧化物歧化酶（SOD）接受了饮食，添加了15％FF的饮食（P <0.05）。Chahua鸡在10％和15％组中均显示出血清IgG和IgM的增加，并降低了丙二醛。所有FF组的血清白细胞介素-2和干扰素伽马均显着增加。与CON组相比，在10％FF组中发现了更高的回肠绒毛高度（VH）。用FF处理显着提高了回肠绒毛的高度/隐窝深度（VH/CD），Jejunal VH和Jejunal VH/CD比率，同时降低了回肠和空肠CD。在饲喂含有FF的饮食的Chahua鸡肉中观察到了修饰的肠道菌群组成，特别是，粪便核酸杆菌和乳酸杆菌的丰度增加。在10％和15％的FF组中，乳酸杆菌的丰度显着增加（所有P <0.05）。相关分析表明，乳杆菌与VH之间存在正相关性（r = 0.38，p = 0.10，图3b），AH/CD比（r = 0.63，p = 0.003），与CD的负相关性（r = -0.72，p）= 0.001）。这些结果表明，FF可以提高免疫力，抗氧化能力和肠道健康，从而提高Chahua鸡的生长性能。
Zhenhui Cao * [†]. Impact of fermented feed of soybean hulls and rapeseed cake on immunity, antioxidant capacity, and gut microbiota in Chahua chicken[J]. Poultry Science, 2024,103(3): 103451