文献类型：期刊文献

英文题名：Algae-Derived Polysaccharides Promote Growth Performance by Improving Antioxidant Capacity and Intestinal Barrier Function in Broiler Chickens

作者：Liu, Wen-Chao[1];Guo, Yan[1];Zhao, Zhi-Hui[1];Jha, Rajesh[2];Balasubramanian, Balamuralikrishnan[3]

机构：[1]Guangdong Ocean Univ, Coll Coastal Agr Sci, Dept Anim Sci, Zhanjiang, Peoples R China;[2]Univ Hawaii Manoa, Coll Trop Agr & Human Resources, Dept Human Nutr, Honolulu, HI 96822 USA;[3]Sejong Univ, Coll Life Sci, Dept Food Sci & Biotechnol, Seoul, South Korea

年份：2020

卷号：7

外文期刊名：FRONTIERS IN VETERINARY SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000598871300001)、、Scopus(收录号：2-s2.0-85097512691)、WOS

基金：This research was funded by the Natural Science Foundation of Guangdong Province (2018A030307023), National Nature Science Foundation of China (32002196), Talent Research Startup Project of Guangdong Ocean University (R18007), South China Sea Scholar by Guangdong Ocean University (573118025), Innovative Strong School Engineering Youth Talent Project (2017KQNCX090) by Department of Education in Guangdong Province, and National Research Foundation of South Korea (2018R1C1B5086232) funded by Korean Government (MEST).

语种：英文

外文关键词：algae-derived polysaccharides; antioxidant capacity; broilers; growth performance; gut health

外文摘要：This study aimed to determine the efficacy of dietary algae-derived polysaccharides (ADPs) from Enteromorpha on growth performance, intestinal morphology, intestinal permeability, and antioxidant capacity in serum, liver, and intestinal mucosa of broilers. Three hundred and ninety six day-old male chicks were randomly assigned to six dietary treatments containing 0 (Control), 1,000, 2,500, 4,000, 5,500, and 7,000 mg ADP/kg basal diet in a 35 day feeding trial. During day 1-21, compared with the control group, dietary 1,000-7,000 mg/kg ADP supplementation improved the average daily gain (ADG) and feed conversion ratio (p < 0.05). Overall (day 1-35), dietary inclusion of 1,000 mg/kg ADP increased the final body weight and ADG (p < 0.05). Besides, on day 21, dietary 2,500 mg/kg ADP supplementation increased the serum catalase (CAT) and liver total superoxide dismutase (T-SOD) activities (p < 0.05), whereas dietary 1,000-5,500 mg/kg ADP supplementation decreased malondialdehyde (MDA) contents in serum and liver (p < 0.05). On day 35, supplementation of 1,000 mg/kg ADP increased the serum glutathione peroxidase and CAT activities and liver T-SOD activities (p < 0.05). It decreased the MDA level of serum and liver (p < 0.05). Also, dietary 2,500 mg/kg ADP increased the villus height of jejunum and ileum on day 21 (p < 0.05), and dietary 4,000 mg/kg ADP increased the villus height of duodenum and ileum on day 35 (p < 0.05). On day 21, dietary 4,000 mg/kg ADP increased the CAT activities of the duodenum and T-SOD activities of jejunum and ileum and decreased the MDA contents in the duodenum, jejunum, and ileum (p < 0.05). On day 35, dietary inclusion of 1,000-7,000 mg/kg ADP reduced MDA contents of duodenum and jejunum (p < 0.05). Furthermore, dietary inclusion of ADP at 1,000-7,000 mg/kg decreased serum DAO activities at day 21 and day 35 (p < 0.05), and the serum D-lactic acid concentration was reduced by dietary supplementation of 1,000, 2,500, and 7,000 mg/kg ADP on day 21. In conclusion, dietary ADP exerted beneficial effects on growth performance, antioxidant capacity, and gut health in broilers; based on the studied parameters, the appropriate recommended dose is 1,000-4,000 mg/kg. These findings provided new insights into the potential application of ADP as natural growth promoters in broilers.