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All Journal Omni-Akuatika Journal of Fisheries & Marine
Ikhsan Khasani
Loka Riset Pemuliaan dan Teknologi Budidaya Perikanan Air Tawar Sukamandi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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The Gonadal Maturity and Gene Expressions of Female Giant Freshwater Prawn (Macrobrachium rosenbergii) after Dietary Administration of Medroxyprogesterone Acetate Anggraeni, Fajar; Malini, Desak Made; Damanhuri, Joni Haryadi; Syahputra, Khairul; Sopian, Asep; Khasani, Ikhsan; Imron, Imron; Krettiawan, Hary
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 1 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i1.43499

Abstract

Abstract One of the problems in giant prawn cultivation is female giant prawns laying eggs during rearing. They will incubate their eggs for three weeks so that the energy from the expected feed for growth is used for egg development and other reproductive activities. Giving MPA hormone to giant prawns either by injection or oral could inhibit gonadal maturation and increase growth rate. The maturation process of the prawn ovary consists of the activation of some complex cellular mechanisms involving genes that regulate the stages of oocyte development. This study aimed to evaluate the response of gonadal maturity and the expression of the MrvWD-Kazal gene in giant prawns fed with a diet containing MPA hormone. The design used in this study was a completely randomized design with four treatments and five replications. The treatments were feeding a diet added with MPA with a concentration of 0 mg.kg-1 feed as control (K), 50 mg.kg-1 feed (P1), 100 mg.kg-1 feed (P2), and 150 mg.kg-1 feed (P3). MPA hormone at a concentration of 50-150 mg/kg feed could inhibit the gonadal maturation of female prawns. In 100 mg/kg of feed concentration showed the lowest gene expression level, indicating an inhibition of gonadal maturation molecularly. The administration of MPA hormone through the feed is a recommended method of aquaculture because it is more applicable and effective than by injection, even though it has a non-uniform impact on each individual. Highlight Research Administration of MPA hormone through the feed to female giant freshwater prawns can inhibit the level of gonad maturity. Expression of von Willebrand factor D (vWD) – Kazal gene were analyzed in different levels of prawn maturity Gonadosomatic index and gonadal histology confirmed that different levels of administration of MPA hormone through the feed could affect the gonad development. The administration of MPA hormone through the feed is a recommended method for aquaculture because it is more applicable and effective to inhibit early maturation of prawns.
Growth, survival rate, and reproductive performance of two superior strains of the giant freshwater prawn (Macrobrachium rosenbergii) Khasani, Ikhsan; Sopian, Asep; Anggraini, Fajar; Pamungkas, Wahyu
Journal Omni-Akuatika Vol 18 (2022): Omni-Akuatika Special Issue 4th Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2022.18.S1.983

Abstract

The high productivity and quality of the harvested prawn are the main objectives of the intensive giant freshwater prawn (GFP) culture. Therefore, the breeding program to create a superior strain of the prawn has been conducted in several countries to support prawn farming. The purpose of this study was to evaluate the productivity and female reproductive performance of the GFP superior strains, namely the selected GI Macro (GI) and Siratu (SR) in the three farming conditions. The GI has resulted from an individual selection program based on standard length and maturation level characters. The multi-location test was conducted in the grow-out phase for 90 days at the three locations based on altitude, namely low-lands (in Subang, 10-25 m above the sea level, asl), medium-lands (in Ciamis, 70-100 m asl), high-lands (in Kuningan, 700-800 m asl). The growth characters consisting of total length/TL, standard length/SL, and body weight/BB of GI and SR were not significantly different, both on the Low, medium, and high lands ponds.  The survival rate of the GI (87,3±7.26%) was significantly higher than the SR (71.0±0.08%) in the medium-land pond.  In the high-lands pond, the survival rate of the SR (72.33±0.32%) was significantly higher than the GI (55.8±6.27%). Meanwhile, the productivity and percentage of the gravid female in the low-lands pond were not significantly different. The data suggested that the selected GI Macro is a location-specific genotype, more suitable to be cultured in the low and moderate-lands pond with warm temperature characteristics. Keywords: freshwater prawn, growth, multi-location, reproduction
Co-Authors Anggraeni, Fajar Anggraini, Fajar Asep Sopian Damanhuri, Joni Haryadi Desak Made Malini Hary Krettiawan Imron Imron, Imron Khairul Syahputra, Khairul Wahyu Pamungkas