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Dietary supplementation with natural astaxanthin from Haematococcus pluvialis improves antioxidant enzyme activity, free radical scavenging ability, and gene expression of antioxidant enzymes in laying hens

Authors :
Nuo Heng
Shan Gao
Yu Chen
Liang Wang
Zheng Li
Yong Guo
Xihui Sheng
Xiangguo Wang
Kai Xing
Longfei Xiao
Hemin Ni
Xiaolong Qi
Source :
Poultry Science, Vol 100, Iss 5, Pp 101045- (2021)
Publication Year :
2021
Publisher :
Elsevier, 2021.

Abstract

The objective of this study was to evaluate the effects of natural astaxanthin (ASTA) from Haematococcus pluvialis on production performance, egg quality, antioxidant enzyme activity, free radical scavenging ability, and gene expression of antioxidant enzymes in laying hens. Nongda No. 3 laying hens (n = 450) were randomly allocated to 1 of 5 dietary treatments. Each treatment had 6 replicates of 15 hens each. All birds were assigned to a corn-soybean meal-based diet containing 0, 20, 40, 80, or 160 mg/kg ASTA for 4 wk. With increasing dietary ASTA, no significant effects were observed on egg weight, feed consumption, feed efficiency, laying rate, Haugh unit, or eggshell strength. Yolk color darkened linearly with increasing dose of ASTA (P

Details

Language :
English
ISSN :
00325791
Volume :
100
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Poultry Science
Publication Type :
Academic Journal
Accession number :
edsdoj.5cb0647659a849e59f7af634ee7bffa8
Document Type :
article
Full Text :
https://doi.org/10.1016/j.psj.2021.101045