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Essential oils are plant-derived aromatic volatile oils, and they contain bioactive compounds that have been shown to improve poultry nutrition. In this study, we investigated the effects of oregano essential oil (OEO) on intestinal antioxidative capacity, immunity, and gut microbiota of young yellow-feathered chickens. A total of nine hundred and sixty 1-d-old female Qingyuan partridge chickens were randomly allocated to four treatment groups with six replicates of 40 birds each, and the feeding trial was lasted for 30 d. The controls were fed on a basal diet without in-feed antibiotics; the birds in the antibiotic group were fed the basal diet supplemented with 20 mg/kg virginiamycin; the remaining birds were fed the basal diet containing 150 or 300 mg/kg OEO, respectively. Dietary supplementation with 150 or 300 mg/kg OEO increased average daily feed intake (P = 0.057) and average daily gain (P < 0.05). The activities of glutathione peroxidase and total antioxidative capacity in plasma, jejuna, and ileal mucosa were increased by OEO supplementation (P < 0.05), with a trend of lower jejunal content of malonaldehyde (P = 0.062). Moreover, dietary OEO increased the content of secretory immunoglobulin A (P = 0.078) and the relative expression of Claudin 1, Mucin 2, and Avain beta-defensin 1 in ileum (P < 0.05). Sequencing data of 16S rRNA indicated that dietary OEO increased the relative abundance of Firmicutes phylum, and Clostridium and Lactobacillus genera, and decreasing that of Romboutsia. Functional analyses indicated that microbial amino sugar and nucleotide sugar metabolism, replication, and repair systems were higher in OEO groups than those of controls and antibiotic treatment. In conclusion, dietary supplementation with OEO enhanced growth performance, alleviated local oxidative stress in intestine, improved production of natural antibodies, and favorably modulated intestinal microbiota composition.
Dong Ruan; Qiuli Fan; Ahmed Mohamed Fouad; Yunyun Sun; Shengshu Huang; Aiji Wu; Chuxiao Lin; Zhixiang Kuang; Chang Zhang; Shouqun Jiang. Effects of dietary oregano essential oil supplementation on growth performance, intestinal antioxidative capacity, immunity, and intestinal microbiota in yellow-feathered chickens. Journal of Animal Science 2021, 99, 1 .
AMA StyleDong Ruan, Qiuli Fan, Ahmed Mohamed Fouad, Yunyun Sun, Shengshu Huang, Aiji Wu, Chuxiao Lin, Zhixiang Kuang, Chang Zhang, Shouqun Jiang. Effects of dietary oregano essential oil supplementation on growth performance, intestinal antioxidative capacity, immunity, and intestinal microbiota in yellow-feathered chickens. Journal of Animal Science. 2021; 99 (2):1.
Chicago/Turabian StyleDong Ruan; Qiuli Fan; Ahmed Mohamed Fouad; Yunyun Sun; Shengshu Huang; Aiji Wu; Chuxiao Lin; Zhixiang Kuang; Chang Zhang; Shouqun Jiang. 2021. "Effects of dietary oregano essential oil supplementation on growth performance, intestinal antioxidative capacity, immunity, and intestinal microbiota in yellow-feathered chickens." Journal of Animal Science 99, no. 2: 1.
The presence of aflatoxin B1 (AFB1) in poultry diets decreases the hatchability, hatchling weight, growth rate, meat and egg production, meat and egg quality, vaccination efficiency, as well as impairing the feed conversion ratio and increasing the susceptibility of birds to disease and mortality. AFB1 is transferred from poultry feed to eggs, meat, and other edible parts, representing a threat to the health of consumers because AFB1 is carcinogenic and implicated in human liver cancer. This review considers how AFB1 produced by Aspergillus flavus and Aspergillus parasiticus strains can affect the immune system, antioxidant defense system, digestive system, and reproductive system in poultry, as well as its effects on productivity and reproductive performance. Nutritional factors can offset the effects of AFB1 in poultry and, thus, it is necessary to identify and select suitable additives to address the problems caused by AFB1 in poultry.
Ahmed Mohamed Fouad; Dong Ruan; HebatAllah Kasem El-Senousey; Wei Chen; Shouqun Jiang; Chuntian Zheng. Harmful Effects and Control Strategies of Aflatoxin B1 Produced by Aspergillus flavus and Aspergillus parasiticus Strains on Poultry: Review. Toxins 2019, 11, 176 .
AMA StyleAhmed Mohamed Fouad, Dong Ruan, HebatAllah Kasem El-Senousey, Wei Chen, Shouqun Jiang, Chuntian Zheng. Harmful Effects and Control Strategies of Aflatoxin B1 Produced by Aspergillus flavus and Aspergillus parasiticus Strains on Poultry: Review. Toxins. 2019; 11 (3):176.
Chicago/Turabian StyleAhmed Mohamed Fouad; Dong Ruan; HebatAllah Kasem El-Senousey; Wei Chen; Shouqun Jiang; Chuntian Zheng. 2019. "Harmful Effects and Control Strategies of Aflatoxin B1 Produced by Aspergillus flavus and Aspergillus parasiticus Strains on Poultry: Review." Toxins 11, no. 3: 176.