Effect of Plant Essential Oil on Growth Performance and Immune Function During Rearing Period in Laying Hens
文献类型： 外文期刊
作者： Gao, J. 1 ; Liu, W. 1 ; Geng, B. 2 ; Lei, Q. 1 ; Han, H. 1 ; Zhou, Y. 1 ; Liu, J. 1 ; Cao, D. 1 ; Li, H. 1 ; Li, F. 1 ;
作者机构： 1.Shandong Acad Agr Sci, Poultry Inst, Jinan 250023, Shandong, Peoples R China
2.Sericultural Res Inst Shandong Prov, Yantai 264002, Shandong, Peoples R China
3.Poultry Breeding Engn Technol Ctr Shandong Prov, Jinan 250023, Shandong, Peoples R China
关键词： Laying hens; plant essential oil; production performance; immune function
期刊名称：BRAZILIAN JOURNAL OF POULTRY SCIENCE （ 影响因子：0.826； 五年影响因子：1.178 ）
ISSN： 1516-635X
年卷期： 2020 年 22 卷 3 期
页码：
收录情况： SCI
摘要： The effects of plant essential oil (PEO) on the production performance and immune function of laying hens were evaluated to provide theoretical basis for promoting the natural plant extracts. Eight thousand 1-day-old healthy laying hens were randomly divided into a control group or PEO group, with four replicates per treatment and 1000 hens per replicate. The PEO diet was supplemented with 3g/kg plant extract. Diets were fed for 56 days. The tibia length and keel length were detected on an empty stomach at the end of the trial. Blood samples were collected on the 28th and 56th days to detect the level of C3, C4, IL-1, IL-2, IL-17 and immunoglobulin in the serum. The results showed that, compared with the control, PEO supplementation significantly increased the weight gain rate (WGR) at the 2nd, 4th, 5th and 7th week (p<0.05), and decreased the WGR at the 3th and 6th week. The tibial length was significantly increased at the 3th, 5th, 6th an d 7th wee k (p<0.01), and also the keel length at the 5th and 7th week in PEO group. The concentration of IgG and IgM also significantly influenced with PEO supplementation, but there was no significant difference in the complements, C3 and C4, and the IL levels between days 28 and 56. Moreover, no significant difference was observed in body weight and immune organ on day 56. Therefore, we conclude that the addition of PEO could improve the production performance and immune function in laying hens.
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