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Yudha Trinoegraha Adiputra
Jurusan Perikanan dan Kelautan Fakultas Pertanian, Universitas Lampung
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Materials Science & Nanotechnology Physics

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Effectiveness of Egg Stimulant® and Oodev® for Maturation of Tilapia (Oreochromis niloticus) Andra Ramadhan PB; Munti Sarida; Yudha Trinoegraha Adiputra
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.176-184

Abstract

Lack of distribution, inbreeding depression, and environmental factors were several negative impacts on tilapia fry quality. It is needed to enhance fry quality by increasing the reproduction performance of broodstocks with nutrients and hormones by using Egg stimulant® and Oodev®. This research purposed to evaluate the maturation process with Egg stimulant and Oodev application and effective doses to increase reproduction performance of female tilapia broodstocks. This research conducted within two months at Unit Pelaksana Teknis Dinas Perikanan Budidaya Air Tawar (UPTD PBAT) Wilayah Barat Tanggamus. The research design used was a complete randomized design two factors and two levels with three replications. Control treatment (K) (Egg stimulant feed 0 g/kg and Oodev injection 0 mL/kg), P1 (Egg stimulant feed 3 g/kg), P2 (Oodev injection 0,5 mL/kg), and P3 (Egg stimulant feed 3 g/kg and Oodev injection 0,5 mL/kg) The results showed that P1, P2, and P3 treatments were not significantly different to eggs diameter, gonadal maturation level, gonadal maturation index, relative fecundity, and fertilization rate. However, Egg stimulants and Oodev have functionally enhanced reproduction performances of female tilapia broodstock. It is showed by treatments have a better result than control. The effective doses of Egg stimulant, Oodev, or combination need a longer period of research to applying in tilapia.
The Technique of Directing the Sex of Betta Fish (Betta Sp.) Larval Stage (H3, H5, and H7) using Coconut Water (Cocos nucifera) Cucu Rohayati; Deny Sapto Chondro Utomo; Yudha Trinoegraha Adiputra
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.185-191

Abstract

Betta (Betta sp.) is an anabantidae fish with sexual development that can be directed at the embryonic and larval stages. One way to direct the sex development of these fish is by using hormone therapy using natural ingredients. Coconut water is one of the natural ingredients that can be used because it contains high potassium. This potassium can convert cholesterol in fish body tissue to pregnenolone which will affect the increase in testosterone production. This study aims to determine the best dose and age group in directing the sex of Betta fish experimentally using a randomized block design (RBD) with 4 treatments and 3 replications. The immersion treatment of larvae in the age group of 3 days, 5 days, and 7 days for 15 hours with a dose of 0%, 10%, 20%, and 30% coconut water was carried out in a 3 L jar containing 30 larvae. The results showed that coconut water was able to influence the increase in the percentage of male betta fish (P <0.05) with the highest value at a dose of 30% as much as 86.26 ± 8.34% and the 3 day larvae age group of 72.78 ± 16.03, and have a different effect on other treatments. In addition, the survival calculated after immersion shows a value of 100%, meaning that coconut water does not have a harmful effect on fish. Based on the results of this study, the best treatment for directing the sex of betta fish is a dose of 30% coconut water with the 3 day age group.
Co-Authors Andra Ramadhan PB Cucu Rohayati Deny Sapto Chondro Utomo Munti Sarida