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Turkish Journal of Fisheries and Aquatic Sciences 2026, Vol 26, Num, 8     (Pages: TRJFAS28671)
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The Positive Effect of Antioxidants in Maintaining the Post-Cryopreserved Sperm Quality of Rainbow Trout Oncorhynchus mykiss (Walbaum, 1792)

Luvi S. Handayani 1 ,Sri R. Rahayu 1 ,Nanda M. Razi 1 ,Elya P. Pane 2 ,Mehmet Kocabas 3 ,Filiz Kutluyer Kocabas 4 ,Hafizuddin Hafizuddin 5 ,Nur Fadli 6 ,Sulistiono Sulistiono 6 ,Zainal A. Muchlisin 7

1 Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
2 Doctoral Program of Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, University of Brawijaya, 65145 Malang, East Java, Indonesia
3 Department of Wildlife Ecology and Management, Karadeniz Technical University, Türkiye
4 Faculty of Fisheries, Munzur University, Türkiye
5 Laboratory of Reproduction, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
6 Department of Fisheries Resource Management, IPB University, Bogor, Indonesia
7 Department of Aquaculture, Faculty of Marine and Fisheries, Universita Syiah Kuala, Banda Aceh 23111, Indonesia DOI : 10.4194/TRJFAS28671 Viewed : 148 - Downloaded : 121 Rainbow trout aquaculture is challenging due to the restricted spawning seasons. Sperm cryopreservation technology can help ensure a successful spawning season, but its effectiveness is restricted by oxidative stress during freezing and thawing, which reduces the availability of male gametes. This study aimed to evaluate the effect of several types and concentrations of antioxidants on post-cryopreservation rainbow trout sperm quality. Subsequently, a factorial completely randomized design with three replications was applied, testing four types of antioxidants Ascorbic acid, Myo-inositol, Butylated hydroxytoluene (BHT), and Alpha-tocopherol at concentrations of 0, 20, 40, and 60 mM, respectively. The evaluation parameters included motility rate, sperm lifespan, and sperm motion characteristics using the Computer Assisted Sperm Analysis system. The results showed that the type and concentration of antioxidants significantly affected sperm motility and sperm lifespan (P<0.05). The treatment method carried out using 40 mM Ascorbic acid and 20 mM BHT led to the highest sperm motility of 46.67% and sperm lifespan of 34 seconds. Although both antioxidants showed similar effectiveness, BHT at a concentration of 20 mM is more recommended due to its lower toxicity and technical as well as economic efficiency considerations. Keywords : Rainbow trout Ascorbic acid BHT Improved sperm motility Sperm lifespan