DSpace Arşivi :: by Yazar "Ozdemir, Keriman Yuruten" değerine göre listeleniyor

Listeleniyor 1 - 1 / 1

Effects of Ulva lactuca as a dietary supplement on growth, antioxidants and digestive enzymes of Nile tilapia (Oreochromis niloticus) under intermittent fasting and regular feeding regimes in the recirculating system
(Springer, 2025) Dernekbasi, Seval; Karatas, Emin; Ozdemir, Keriman Yuruten; Ozturk, Dilara Kaya; Karayucel, Ismihan
This study evaluated the effects of dietary supplementation with Ulva lactuca (5% = ULM5; 10% = ULM10) on Nile tilapia (Oreochromis niloticus) under prolonged intermittent fasting (1 week fasting/1 week feeding for 12 weeks). While fasting reduced growth and body composition parameters, protein content remained above 20% across all groups. ULM5 improved growth performance under normal feeding, whereas ULM10 enhanced antioxidant defense [up arrow SOD (superoxide dismutase), up arrow CAT (catalase), down arrow LPO (lipid peroxidation)], particularly during stress. Digestive enzyme activities declined during fasting but recovered in U. lactuca-fed groups. These findings suggest that U. lactuca, especially at 10%, may support physiological resilience and oxidative balance during nutritional stress, highlighting its potential as a functional feed additive in sustainable aquaculture.