Guo Wen-Lei, Fu Shuai-Shuai, Li Xiao-Yue, Wang Cheng-Cheng, Xue Chang-Hu, Wang Yu-Ming, Zhang Tian-Tian
SKL of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299 Sansha Road, Qingdao 266404, PR China.
SKL of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299 Sansha Road, Qingdao 266404, PR China; Sanya Institute of Oceanography, Ocean University of China, Sanya 572000, PR China.
Food Chem. 2025 Apr 30;472:142915. doi: 10.1016/j.foodchem.2025.142915. Epub 2025 Jan 15.
The conversion of alpha-linolenic acid (ALA) in feed to DHA in egg is inefficient, so there is a critical need for feed additives that can enhance the enrichment of docosahexaenoic acid (DHA) in egg yolk from ALA-rich feed. The present study evaluated the impact of dietary fucoxanthin on the conversion efficiency of ALA in feed to DHA in quail egg yolk. Results showed that the addition of 0.02 % fucoxanthin to the diet supplemented with 0.5 % ALA significantly enhanced the DHA conversion rate by 51.48 % and increased DHA content by 32.82 %, matching levels observed with 1 % ALA supplementation during the peak laying period. Importantly, fucoxanthin did not alter the proportion of phospholipid-bound DHA. These findings suggest that fucoxanthin, as a feed additive, has the potential to promote the accumulation of DHA in avian eggs when supplemented with ALA in feed.
饲料中的α-亚麻酸（ALA）转化为鸡蛋中的DHA效率较低，因此迫切需要能够提高富含ALA的饲料中蛋黄中二十二碳六烯酸（DHA）富集量的饲料添加剂。本研究评估了日粮中岩藻黄质对鹌鹑蛋黄中饲料ALA向DHA转化效率的影响。结果表明，在添加0.5%ALA的日粮中添加0.02%岩藻黄质可显著提高DHA转化率51.48%，并使DHA含量增加32.82%，与产蛋高峰期添加1%ALA时的水平相当。重要的是，岩藻黄质并未改变磷脂结合DHA的比例。这些发现表明，岩藻黄质作为一种饲料添加剂，在饲料中添加ALA时具有促进禽类蛋中DHA积累的潜力。
