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All Journal Agrikan: Jurnal Agribisnis Perikanan
Firdaus, Syafrizal Akbar
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science

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Study of Reproductive Biological Aspects of Cetol Fish Poecilia reticulata was Caught in Freshwater of Magelang Regency Rochvita, Ana; Anggraini, Rr. Citra P. Kusuma; Permadi, Jefri; Hamam, Faisal Nur; Firdaus, Syafrizal Akbar
Agrikan Jurnal Agribisnis Perikanan Vol. 16 No. 2 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

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Abstract

This research aims to determine aspects of cetol fish reproductive biology including sexuality, sex ratio, GSI, gonadal maturity (TKG), and fecundity, in order to obtain information as a basis for cultivation. Samples were taken in 6 waters in the Magelang Regency area, during August at 1 week intervals. The data obtained is presented in the form of tables and figures, analyzed descriptively. Water quality is classified as good, temperature range 22.5-29.8 °C, pH 6.09-6.80, and DO 7.0-15.7 mg/L. Cetol fish have sexual dimorphism and dichromatism. The male:female sex ratio is 1.1:1. Male and female fish in TKG I-VI, with a greater percentage of males and females in TKG III-VI than in TKG I-II. At a length of 1.6-2.0 cm, males have been found in TKG III-V and females in TKG III-IV, and at a length of 2.1-2.5 cm, males and females have been found in TKG III-VI. The GSI of male fish reaches 8.22% (1.2-2.5 cm) and for females it reaches 28.09% (1.1-3.8 cm). Fecundity ranges from 2-36 eggs (1.1-3.8 cm and 0.07-0.57 g). The conclusion of this research is that the sex ratio is unequal, male and female cetol fish first mature gonads at a length of 1.6-2.0 cm, and females can give birth to young at a length of 2.1-2.5 cm. August is the spawning season for cetol fish marked by high GSI and TKG advanced. Cetol fish are viviparous so fecundity is low.
Nutrient Optimisation of Crude Glycerin Alternative Feed Formulation for Pearl Catfish (Clarias gariepinus) Anggraini, Rr. Citra Permata Kusuma; Winarno, Raden Hesti; Firdaus, Syafrizal Akbar; Panjaitan, Dennys
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 1 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i1.2056

Abstract

abstrak Crude glycerin is a main byproduct of biodiesel plants that has the potential to be used as a feed ingredient, but has not been fully utilized With the increasing biodiesel production, the quantity of crude glycerin is also rising, which could have environmental impacts if not wisely managed. However, research on using crude glycerin as fish feed in Indonesia is still limited Previous studies have not yet shown optimal results, so further research is needed to optimize the nutrition in feed formulations This study aims to determine the appropriate feed formulation to enhance the nutrition of alternative crude glycerin feed for pearl catfish (Clarias gariepinus). The research method utilized the Pearson square method to formulate feed and conducted proximate analysis to determine the nutritional content of the feed The results of this study indicate that sample code A has a higher protein content of 14,85% compared to sample code B, which is 11,86% Further research is recommended to achieve better results It is suggested to use an oven for drying to ensure complete dryness of the pellets and reduce water content.
Co-Authors Ana Rochvita Anggraini, Rr. Citra P. Kusuma Anggraini, Rr. Citra Permata Kusuma Hamam, Faisal Nur Jefri Permadi Panjaitan, Dennys Winarno, Raden Hesti