Safety evaluation of phytosterols in laying hens: Effects on laying performance, clinical blood parameters, and organ development
文献类型: 外文期刊
作者: Shi, S. R. 1 ; Shen, Y. R. 1 ; Chang, L. L. 1 ; Zhou, C. J. 2 ; Bo, Z. 1 ; Wang, Z. Y. 2 ; Tong, H. B. 1 ; Zou, J. M. 1 ;
作者机构: 1.Chinese Acad Agr Sci, Poultry Inst, Yangzhou 225125, Jiangsu, Peoples R China
2.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China
关键词: phytosterol;laying hen;safety evaluation;clinical blood parameter;organ development
期刊名称:POULTRY SCIENCE ( 影响因子:3.352; 五年影响因子:3.679 )
ISSN: 0032-5791
年卷期: 2014 年 93 卷 3 期
页码:
收录情况: SCI
摘要: Phytosterols are intended for use as a novel food ingredient with plasma cholesterol-lowering activity. Although phytosterols are naturally present in the normal diet, daily consumption is insufficient to ensure plasma cholesterol-lowering levels. Therefore, phytosterols may be added to the diets to achieve the desired cholesterol-lowering activity. A subchronic laying hen safety study was conducted to examine if high-dose phytosterols could affect the safety of hens. Three hundred sixty 21-wk-old Hy-Line Brown laying hens were randomly assigned to 5 groups with 6 replicates of 12 birds each; after 3 wk, birds were fed diets supplemented with 0, 20, 80, 400, and 800 mg/kg of phytosterols for 12 wk. Throughout the study, clinical observations and laying performance were measured. At the end of the study, birds were subjected to a full postmortem examination: blood samples were taken for clinical pathology, selected organs were weighed, and specified tissues were taken for subsequent histological examination. No treatment-related changes that were considered to be of toxicological significance were observed. Therefore, a nominal phytosterol concentration of 800 mg/kg was considered to be the no-observed-adverse-effect level.
- 相关文献
作者其他论文 更多>>
-
Effects of Peroxisome Proliferator-Activated Receptor ? on Modulating Angiopoietin-Like Protein 4 Synthesis in Caco-2 Cells Exposed to Clostridium butyricum
作者:Zhao, X.;Huang, H. S.;Shi, S. R.
关键词:Clostridium butyricum; peroxisome proliferator activated receptor gamma; angiopoietin-like protein 4; Caco-2 cell
-
Dietary supplementation of methionine mitigates oxidative stress in broilers under high stocking density
作者:Miao, Z. Q.;Dong, Y. Y.;Qin, X.;Han, M. M.;Zhang, K. K.;Song, X. Y.;Zhang, J. Z.;Li, J. H.;Yuan, J. M.;Shi, S. R.
关键词:methionine; stocking density; mortality; oxidative stress
-
WHITE STRIPE LEAF8, encoding a deoxyribonucleoside kinase, is involved in chloroplast development in rice
作者:Liu, L. L.;You, J.;Zhu, Z.;Chen, K. Y.;Hu, M. M.;Gu, H.;Liu, Z. W.;Wang, Z. Y.;Wang, Y. H.;Liu, S. J.;Chen, L. M.;Liu, X.;Tian, Y. L.;Zhou, S. R.;Jiang, L.;Wan, J. M.;Wan, J. M.
关键词:Rice (Oryza sativa L; ); White stripe leaf; Chloroplast; Deoxyribonucleoside kinase (dNK); Salvage pathway
-
A mixture of daidzein and Chinese herbs increases egg production and eggshell strength as well as blood plasma Ca, P, antioxidative enzymes, and luteinizing hormone levels in post-peak, brown laying hens
作者:Xiao, Y. Q.;Shao, D.;Sheng, Z. W.;Wang, Q.;Shi, S. R.;Xiao, Y. Q.;Shao, D.;Sheng, Z. W.;Wang, Q.;Shi, S. R.;Shi, S. R.
关键词:daidzein; herbs; laying performance; egg quality; hens
-
Isolation and sequence analysis of the complete VP2 gene of canine parvovirus from Chinese domestic pets and determination of the pathogenesis of these circulating strains in beagles
作者:Chen, M. R.;Guo, X. Y.;Wang, Z. Y.;Jiang, Y. T.;Yuan, W. F.;Xin, T.;Hou, S. H.;Song, T. Q.;Lin, W. D.;Zhu, H. F.;Jia, H.;Chen, M. R.
关键词:canine parvovirus; molecular epidemiology; phylogenetic analysis; pathogenesis
-
The dietary combination of essential oils and organic acids reduces Salmonella enteritidis in challenged chicks
作者:Zhang, S.;Shen, Y. R.;Wu, S.;Xiao, Y. Q.;Shi, S. R.;Zhang, S.;Shen, Y. R.;Wu, S.;Xiao, Y. Q.;Shi, S. R.;He, Q.;Shi, S. R.
关键词:essential oils and organic acids; Salmonella Enteritidis; bacterial count; serum index; chicken
-
Genistein increases progesterone secretion by elevating related enzymes in chicken granulosa cells
作者:Xiao, Y. Q.;Shao, D.;Tong, H. B.;Shi, S. R.;Xiao, Y. Q.;Shao, D.;Tong, H. B.;Shi, S. R.;Shi, S. R.
关键词:genistein; progesterone; granulosa cells; estrogenic receptors



