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 condition

作者：Nawab, Aamir[1];Li, Guanghui[2];Liu, Wenchao[1];Lan, Ruixia[4];Wu, Jiang[1];Zhao, Yi[1];Kang, Kai[1];Kieser, Barbara[3];Sun, Chenyu[1];Tang, Shuyan[1];Xiao, Mei[1];An, Lilong[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;[4]Guangdong Ocean Univ, Coll Agr Sci, Dept Anim Sci, Zhanjiang 524088, Guangdong, Peoples R China

年份：2019

卷号：86

外文期刊名：JOURNAL OF THERMAL BIOLOGY

收录：SCI-EXPANDED(收录号：WOS:000501652200017)、、Scopus(收录号：2-s2.0-85074778948)、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 wish to thank beloved parents (Rana Nawab Ahmad and Mrs. Sultana), grandparents (Saith Bachal Din), uncle (Rana Maqbool Ahmad), brother (Rana Kashif 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; Heat stress; Laying hen; Oxidative damage; Curcumin

外文摘要：Heat stress induces oxidative stress, and reduces antioxidant defenses of birds, which may affect poultry-production performance. Dietary antioxidants may protect against heat stress. We evaluated the effect of increasing concentrations of dietary curcumin on antioxidant parameters of hens under high-temperature conditions for nine weeks. Roman laying hens (n = 336, 22 weeks old, 1420 g weight) were divided into three treatment groups. The first group served as a thenno-neutral control (kept at 25 +/- 1 degrees C). The second group was exposed to high temperatures (32 +/- 1 degrees C, 6 h/day), and fed a basal diet. The third group was further divided into five groups, and all were exposed to high temperatures (32 +/- 1 degrees C, 6 h/day) and provided a basal diet supplemented with 100, 150, 200, 250, 300 mg/kg curcumin (H1, H2, H3, H4, H5). All treatments included four replicates of 12 hens. Total superoxide dismutase (SOD) activity was significantly higher in H2 and H3 groups, and total antioxidant capacity (T-AOC) was higher in H2, H3, and H5 groups. Catalase (CAT) and glutathione peroxidase (GSH-Px) activities were significantly higher in the H3 group. Malondialdehyde concentrations were lower in curcumin supplemented hens compared to control groups hens. Hens in all curcumin treatment groups had slightly (but non-significantly) higher activities of CAT, SOD, GSH-Px, and T-AOC in liver, heart, and lung tissues, compared to heat stressed control group. It is concluded that dietary curcumin given to laying hens under heat stress may enhance their antioxidant status, and ameliorate stressful environmental conditions.