期刊
POULTRY SCIENCE
卷 100, 期 4, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.psj.2021.101031
关键词
Macleaya cordata extract; Xuefeng black-bone chicken; laying performance; egg quality; anti-oxidation and immune activity
资金
- National Natural Science Foundation of China [32072711]
- Hunan Agricultural University
The study showed that supplementation of MCE significantly improved the strength and thickness of eggshell, increased serum glutathione peroxidase concentration, elevated levels of female hormones and serum luteinizing hormone, and significantly decreased levels of tumor necrosis factor-alpha and interleukin-6.
The abuse of antibiotic growth promoters (AGPs) in feed has led to drug resistance and ecological damage would threaten human health eventually. Natural plants have become a hotspot in the research and application of substituting AGPs because of their advantages of safety, efficiency, and availability. This study was conducted to investigate the effects of Macleaya cordata extract (MCE) in the diet of Xuefeng black-bone chicken on laying performance, egg quality, and serum indices. In this study, 576 birds (47-week-old) were evenly distributed between 4 treatments with 6 replicates of 24 hens each. The control group was fed a basal diet without MCE and the remaining groups received 100, 150, or 200 mg/kg MCE for 84 d. Results revealed that the strength and thickness of the eggshell increased significantly with the dietary addition of MCE (P < 0.05). The serum concentrations of glutathione peroxidase increased in the MCE groups (P < 0.01). Simultaneously, progesterone, follicle stimulating hormone, estradiol as well as serum luteinizing hormone levels also increased with the addition of MCE (P < 0.05). Compared with the control group, supplementation of MCE significantly decreased the tumor necrosis factor-alpha and interleukin-6 levels (P < 0.01). In summary, it was concluded that diet addition of 200 mg/kg MCE ameliorated egg quality, enhanced antioxidation and immune activity, and regulated hormone secretion of Xuefeng black-bone chicken.
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