Gökkuşağı alabalığı rasyonuna eklenen astaksantinin kas dokusu siyalik asit miktarı üzerine etkisinin araştırılması

Abstract

Astaxanthin is an oxidized carotenoid component responsible for pigmentation, protecting essential polyunsaturated fatty acids from oxidation, immune response, communication, reproductive behavior, and improved reproduction in aquatic animals. In aquaculture, astaxanthin is a pigment used to give rainbow trout flesh its distinctive pinkish tint. Sialic acid is an alpha-keto acid monosaccharide with a nine-carbon backbone that is an acylated derivative of neuraminic acid and a terminal component of the oligosaccharide chains of many glycoproteins and glycolipids. It impacts cell recognition, communication, signaling, cellular aggregation and development, infections, tumor growth and metastasis, immunology, reproductive biology, and neurology. Forty female rainbow trout were used in the study. Fish were divided into two groups. The experimental group (n=20) received a daily dose of astaxanthin of 50 ppm/day for 225 days, whereas the control group (n=20) received a standard fish meal. The concentration of sialic acid in fish muscle tissue was evaluated using the enzyme-linked immunosorbent assay (ELISA) method. The sialic acid level in muscle tissue of fish fed a standard fish ration was 111.97 ± 4.56 µg/g, while the sialic acid level in muscle tissue of fish fed astaxanthin was 110.33 ± 8.54 µg/g. In our research, we found that adding astaxanthin to the fish diet had no effect on the amount of sialic acid in the fish, which is crucial in human nutrition. As a result, it was revealed that dietary astaxanthin did not influence the level of sialic acid in fish muscle tissue (p>0.05).