文献类型：期刊文献

英文题名：Effect of Dietary Curcumin on the Antioxidant Status of Laying Hens under High-Temperature Conditions

作者：Nawab, A.[1];Li, G.[2];Liu, W.[1];Lan, R.[1];Wu, J.[1];Zhao, Y.[1];Kang, K.[1];Kieser, B.[3];Sun, C.[1];Tang, S.[1];Xiao, M.[1];An, L.[1]

机构：[1]Guangdong Ocean Univ, Agr Coll, Dept Vet Med, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Agr Coll, Dept Anim Sci, Zhanjiang 524088, Guangdong, Peoples R China;[3]Guangdong Ocean Univ, Dept Foreign Language, Zhanjiang 524088, Guangdong, Peoples R China

年份：2019

卷号：21

期号：2

外文期刊名：BRAZILIAN JOURNAL OF POULTRY SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000498802700001)、、Scopus(收录号：2-s2.0-85077261434)、WOS

基金：Special thanks to Revista Brasileira de Ciencia Avicola for giving an opportunity to share knowledge on worldwide heat stress issues and strategies to overcome this problem. The author wishes to thank beloved parents (Rana Nawab Ahmad and Mrs. R. Sultana), grandparents (Saith Bachal Din), uncle (Rana Maqbool Ahmad), brother (Rana Kashif Nawab and Dr. Rana Yasir Nawab) and dearest all teachers for continued support and excellent mentorship. This work was supported by Science and Technology Planning Project of Guangdong Province, China (2010 B090400376).

语种：英文

外文关键词：Antioxidant; curcumin; heat stress; laying hen; oxidative damage

外文摘要：Heat stress induces oxidative stress, and reduces body antioxidant metabolite levels, which can affect poultry production performance. Dietary antioxidants protect birds against the adverse effects of heat stress. The effects of increasing concentrations of dietary curcumin on the antioxidant parameters of layers maintained under high-temperature conditions for nine weeks were evaluated. Roman laying hens (n = 336, 22 weeks old, 1420 g BVV) were divided into three treatment groups. The first group served as a thermoneutral control (kept at 25 +/- 1 degrees C). The second group was exposed to high temperatures (32 +/- 1 degrees C, 6 h/d), given a basal diet. The third group was further divided into five treatment groups (100, 150, 200, 250, 300 mg/kg Curcumin) fed a basal diet (treatments H1, H2, H3, H4, H5) under high temperatures conditions (32 +/- 1 C, degrees 6 hours/day). As a result of this study, total superoxide dismutase activity was significantly higher in H2 and H3 groups, and total antioxidant capacity was higher in H2, H3, and H5 groups. Catalase and glutathione peroxidase activity was significantly higher in the H3 group. Malondialdehyde concentration was lowered in curcumin supplemented hens compared with control groups hens. Laying hens in all curcumin treatment groups had slightly higher activities of CAT, SOD, GSH-Px, and T-AO[ in the liver, heart, and lungs, compared with heat stressed control group. It was concluded that dietary curcumin given to laying hens under heat stress may enhance their antioxidant status, and alleviate the detrimental effects of stressful environmental conditions.