Effects of Different Dried Chlorella pyrenoidosa Preparations on Fatty Acid Profiles and Reproductive Outcomes in Daphnia carinata

IF 1.9 4区农林科学 Q2 FISHERIES

Aquaculture Research Pub Date : 2025-01-06 DOI:10.1155/are/3917802

Jiaqi Jin, Feng Zhang, Tian Yang, Yinan Jiang, Wenzhi Wei

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Abstract

Daphnia carinata is an important biological live feed in aquaculture. Conventionally, D. carinata is cultivated and fed with fresh Chlorella pyrenoidosa, which is inconvenient for storage and transportation. After undergoing vacuum freeze-drying or spray-drying, C. pyrenoidosa exhibits advantages such as reduced weight and easier storage and transport. This study investigated the effects of feeding freeze-dried and spray-dried Chlorella on the reproductive performance and fatty acid composition of D. carinata. The results indicated that there was no significant difference in reproductive performance between the two groups of D. carinata fed with freeze-dried Chlorella and fresh Chlorella. However, a significant decline in reproductive performance was observed in the group fed with spray-dried Chlorella. The contents of crude fat and unsaturated fatty acids in freeze-dried Chlorella were significantly higher than in spray-dried Chlorella. Additionally, D. carinata fed with freeze-dried Chlorella exhibited significantly higher levels of unsaturated fatty acids (especially ALA and EPA) than those fed with spray-dried Chlorella. In conclusion, freeze-dried Chlorella can be used as an alternative to fresh Chlorella for cultivating D. carinata. Unsaturated fatty acids are a key factor influencing the reproductive performance of D. carinata.

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来源期刊

Aquaculture Research 农林科学-渔业

CiteScore

4.60

自引率

5.00%

发文量

464

审稿时长

5.3 months

期刊介绍： International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.