Masculinization of Tilapia (Oreochromis niloticus) Using Dietary Purwoceng (Pimpinella pruatjan) Extract With Different Concentrations | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Volume 29, Issue 5, September and October 2025, Pages 1623-1638 PDF (882.23 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2025.368913.5573 | ||
| Authors | ||
| Fajar Maulana* ; Winary Josua Anugrah Gultom; Kurnia Anggraini Rahmi; Odang Carman | ||
| Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Jl. Agatis, IPB Darmaga Bogor, West Java, Indonesia 16680 | ||
| Abstract | ||
| Male tilapia generally show a faster growth rate compared to female tilapia. Monosex tilapia farming typically targets an all-male population for more efficient growth. The use of 17α-methyltestosterone hormones has been restricted, creating a need for natural substitutes—one of which is purwoceng extract. This study aimed to determine the effectiveness of hormones and purwoceng extract in feed on the male sex ratio of 7-day-old tilapia larvae (average weight: 0.011 ± 0.001 g; average length: 0.80 ± 0.043 cm) reared for 60 days. The study was conducted using a completely randomized design consisting of five treatments with four replications. The five treatments were: negative control (KN) with no additions, positive control (KP) with the addition of 17α-methyltestosterone at 50 mg kg⁻¹ feed, S1 with 0.35 g kg⁻¹ of purwoceng extract, S2 with 0.70 g kg⁻¹, and S3 with 1.05 g kg⁻¹. The results showed that supplementation with purwoceng extract at 0.70 g kg⁻¹ feed can increase the male sex ratio and specific growth rate, with no adverse effect on survival rate (SR). However, the percentage of males in the S2 treatment was lower than in the KP treatment. This indicates that purwoceng extract can increase the percentage of male tilapia, but is not more effective than 17α-methyltestosterone. | ||
| Keywords | ||
| Fitohormone; Masculinization; Monosex; Tilapia; Purwoceng; 17α-methyltestosteron | ||
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