期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 66, 期 22, 页码 5521-5530出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.8b00860
关键词
astaxanthin; antioxidant; chick; microalgae; fatty acid
资金
- Heliae Development, Gilbert, Arizona
- DOE/USDA Biomass Research and Development Initiative [201110006-30361]
- DOE MAGIC grant [DE-EE0007091]
- Cornell University [NYC-127419, NYC-127302]
Astaxanthin (AST) is a well-known carotenoid with a high antioxidant capacity. This study was designed to evaluate the nutritional and metabolic effects of microalgal AST added to the diets of broiler chicks under heat stress. A total of 240 Cornish male chicks (1 day old) were divided into six cages per treatment (eight chicks per cage) and fed a corn-soybean meal diet supplemented with AST from Haematococcus pluvialis at 0, 10, 20, 40, and 80 mg/kg for 6 weeks. Heat stress was employed during weeks 4-6. The supplementation led to dose-dependent enrichments (P < 0.05) of AST and total carotenoids in the plasma, the liver, and the breast and thigh muscles. There were similar enhancements (P < 0.05) of oxygen-radicalabsorbance capacities, but there were decreases or mixed responses (P < 0.05) of glutathione concentrations and glutathione peroxidase activities in the tissues. In conclusion, supplemental dietary microalgal AST was bioavailable to the chicks and enriched in their tissues independent of heat stress, leading to coordinated changes in their endogenous antioxidant defense and meat quality.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据