Xanthophyll supplementation regulates carotenoid and retinoid metabolism in hens and chicks
| Autor: | Yingzuo Bi, Xu Lihui, Y Gao, C Wang, Jin Ling, Bao-Li Sun, Jun Ji |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Male medicine.medical_specialty Lutein medicine.drug_class Ileum Biology Jejunum Avian Proteins 03 medical and health sciences chemistry.chemical_compound Random Allocation Retinoids Zeaxanthins Internal medicine Intestine Small medicine Animals Retinoid Carotenoid chemistry.chemical_classification 030109 nutrition & dietetics Retinol General Medicine Animal Feed Carotenoids Diet Zeaxanthin 030104 developmental biology medicine.anatomical_structure Endocrinology chemistry Gene Expression Regulation Liver Xanthophyll Dietary Supplements Animal Science and Zoology Female Chickens |
| Zdroj: | Poultry science. 95(3) |
| ISSN: | 0032-5791 |
| Popis: | This study investigated the effects of xanthophylls (containing 40% lutein and 60% zeaxanthin; Juyuan Biochemical Co., Ltd., GuangZhou, China) on gene expression associated with carotenoid cleavage enzymes (β-carotene 15, 15′-monooxygenase, BCMO1; and β-carotene 9′, 10′-dioxygenase, BCDO2) and retinoid metabolism (lecithin:retinol acyl transferase (LRAT) and STRA6) of breeding hens and chicks. In experiment 1, 432 hens were divided into 3 groups and fed diets supplemented with zero (as the control group), 20, or 40 mg/kg xanthophyll. The liver, duodenum, jejunum, and ileum were sampled at d 35 of the trial. Results showed that 40 mg/kg xanthophyll supplementation increased BCDO2 mRNA in the liver, duodenum, and jejunum; LRAT mRNA in the jejunum; and STRA6 mRNA in the liver, while it decreased LRAT mRNA in the liver. Experiment 2 was a 2 × 2 factorial design. Male chicks hatched from a zero or 40 mg/kg xanthophyll diet of hens were fed a diet containing either zero or 40 mg/kg xanthophylls. The liver, duodenum, jejunum, and ileum were sampled at zero, 7, 14, and 21 d after hatching. Results showed that in ovo xanthophyll modulated carotenoid and retinoid metabolism mainly within one wk after hatching. The maternal effects gradually vanished and dietary effects began to work one to 2 wk after hatching. Dietary xanthophyll regulated carotenoid and retinoid metabolism mainly from 2 wk onward. The xanthophyll regulation of carotenoid and retinoid metabolism also revealed strong tissue specificity. In conclusion, xanthophyll supplementation could modulate carotenoid and retinoid metabolism in different tissues of hens and chicks. |
| Databáze: | OpenAIRE |
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