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The effects on some non‐enzymatic antioxidants and oxidative stress of Astacus leptodactylus (Esch., 1823) of starvation periods
- Barim‐Öz, Özden
- Aquaculture nutrition 2018 v.24 no.1 pp. 492-503
- Astacus leptodactylus, abdomen, antioxidants, ascorbic acid, beta-carotene, freshwater crayfish, glutathione, hepatopancreas, malondialdehyde, muscles, oxidative stress, refeeding, starvation, tissues, vitamin A, vitamin E
- This study investigated the effect of starvation (78 days) and refeeding (33 days) on the oxidative stress [malondialdehyde (MDA)] and the non‐enzymatic antioxidants [vitamin E (VE), vitamin C (VC), vitamin A (VA), beta carotene (βC) and reduced glutathione (GSH)] in the hepatopancreas, muscle and gill tissues of freshwater crayfish (Astacus leptodactylus). Crayfish were divided into three experimental groups: control (fed), starved (not fed) crayfish for 78 days and refeeding crayfish for 33 days after 78 days of starvation. The biochemical analysis of the tissues was conducted at 3, 18, 33, 48, 63 and 78 days of starvation and feeding and at 3, 18 and 33 days of refeeding. It was determined that crayfish can withstand starvation period of 78 days. In all of the periods, the MDA levels were significantly higher in the tissues of starved crayfish when compared with the control. The findings of this study demonstrate that starvation has a negative effect on the VE, VC, VA, βC and GSH levels in the crayfish. The measured parameters returned to control values after 33 days of the refeeding. Additionally, the starvation resulted in decreased levels of VE, VA and βC in the abdomen muscle of crayfish consumed by humans.