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. 2025 Aug 12;12:1562641. doi: 10.3389/fvets.2025.1562641

Table 18.

Productive performance in fish fed with a diet supplemented with a THY source.

THY source and concentration Duration Main findings on productive parameters References Year
Phytogenic feed additive containing THY (0 and 1 g/kg) 8 weeks Phytogenic supplementation improves feed efficiency. Body weight gain is not affected (114) 2012
THEO (0, 500, 1,000, and 1,500 mg/kg) 60 days Fish with THEO diets show significantly higher weight gain percentages and specific growth rates than control (115) 2015
THEO (0.5%, 1%, 1.5%, and 2%) 56 days THEO supplementation boosts growth rate, peaking at 1.5%. (90) 2017
THY (1 and 2 ml/kg diet) 75 days Dietary supplementation with 1 ml THY/kg diet significantly improves growth performance (2) 2018
THEO (THY = 38.74%; 0, 0.5, 1, and 2 ml/kg feed) 2 months 0.5 ml/kg feed THEO yields significantly better weight gain and specific growth rate (14) 2019
THP (2%; THY concentration not specified) 30 days THP administration normalizes growth performance in fish exposed to lambda cyhalothrin insecticide (13) 2020
THY (1, 1.5, 2, and 2.5 g/kg) 60 days Fish fed THY-supplemented diets improve weight gain and FCR, with best results at 1 g/kg; protein content increases significantly in groups with 2–2.5 g/kg (146) 2022
THEO (THY = 55.9%; 0 and 50 mg/L) N/A No differences in feed consumption (147)