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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Journal of Marine Research Jurnal Sains dan Teknologi REKAYASA Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Mestaka: Jurnal Pengabdian Kepada Masyarakat Journal of Marine Resources and Coastal Management Mathematics Education Journal
Makhfud Efendy, Makhfud
Universitas Trunojoyo Madura
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Social Sciences Other

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Journal : REKAYASA

 1 
Effects of Dietary Salt-Based Minerals and Phosphorus Supplements on Mean Body Weight, Survival Rate and Feed Conversion Ratio of White Shrimp Reared In Brackish Water Amir, Nizar; Efendy, Makhfud; Hidayat, Agriananta Fahmi
Rekayasa Vol 14, No 3: Desember 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i3.11808

Abstract

This study aimed to examine the impact of dietary salt-based mineral and phosphorus supplements on mean body weight, survival rate, and feed conversion ratio of Litopenaeus vannamei (white shrimp) reared in brackish water. The experiment was performed randomized design with three replicates in each treatment used twelve 40 L rectangular polymethyl methacrylate containers reared 45 days. The four treatments in this study were based on the concentration of salt-based mineral and phosphorus supplements (control or 0 ppm, one ppm, two ppm, and three ppm) in dietary of white shrimp. The results showed that using salt-based mineral and phosphorus supplements in dietary of white shrimp positively impacts mean body weight, survival rate, and feed conversion ratio. Increasing the concentration of salt-based mineral and phosphorus supplements increased mean body weight and survival rate and reduced feed conversion ratio of white shrimp. The mean body weight, survival rate, and feed conversion ratio of white shrimp were achieved with three ppm of dietary salt-based mineral, and phosphorus supplements reared 45 days was 5.98 gr, 88.57%, and 1.45, respectively.
Hubungan Fluktuasi Parameter Fisika dalam Produksi Garam Rich Minerals Dengan Media Prototype di Salt House Yoseva, Vellia; Indriyawati, Novi; Pratiwi, Wiwit Sri Werdi; Efendy, Makhfud
Rekayasa Vol 14, No 3: Desember 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i3.12556

Abstract

Madura Island is one of the largest salt producing areas in Indonesia. Salt is included in the type of complementary ingredients in every dish. Rich Mineral salt is salt obtained from the total crystallization process without removing various minerals contained in the raw materials, so that the mineral content is higher than consumption salt in general. This study aims to describe the fluctuations and the relationship between physical parameters consisting of water temperature, water density and water level during the salt production process. This study uses three prototype geomembranes with a size of 60x40x16 cm in salt production. This study uses quantitative methods in the form of numbers obtained based on facts in the field. The results of this study are that the three prototypes have a temperature range, water density and water level that are not significantly different. This is showed by the results of the ANOVA test, where the P-value of the three prototypes is greater than the alpha value (α). In this study also obtained a correlation value between the parameters of water density and water level. The correlation value resulting from the calculation of the linear equation between the two parameters is 0.93. Based on these results, it can be interpreted that the water density and water level have a correlation relationship of 93%. So, it can be concluded that the higher the water level, the lower the water level.  
Studi Komparasi Parameter Lingkungan Proses Produksi Garam di Indonesia Fauziyah, Lailatul; Yulitasari, Fara’idhya Intan; Maulana, Ilham; Camila, Aysyah Fitria; Efendy, Makhfud; Nuzula, Nike Ika; Pratiwi, Wiwit Sri Werdi
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.28434

Abstract

Indonesia has great potential as a salt-producing country due to its extensive coastline and favorable geographical conditions. However, the quality and quantity of domestic salt production are still suboptimal and fail to meet the domestic industrial salt demand. This study aims to analyze and compare environmental parameters that influence the suitability of salt pond sites in several regions of Indonesia, as well as to understand the salt production process based on the deposition of impurities at various stages of crystallization. The study was conducted at eight locations with different climatological and hydrological characteristics, including rainfall, soil permeability and type, duration of sunlight, air humidity, wind speed, air temperature, evaporation rate, and water saturation. The results of the study indicate that environmental parameters play a role in determining the effectiveness and efficiency of the salt production process. Pati and Aceh Besar districts are classified as unsuitable (N) for soil parameters, thus requiring adaptive technologies such as geomembranes and boiling methods. The salt crystallization process begins with the flow of seawater from the bozem to the crystallization table, where impurities such as mud, sand, Fe₂O₃, CaCO₃, CaSO₄•2H₂O, and gypsum are gradually deposited. Meanwhile, NaCl deposits form on the crystallization table, and MgSO₄ and NaBr compounds are found in the bittern pond. This study emphasizes the importance of land suitability mapping based on environmental parameters to enhance national salt productivity and quality, as well as serving as a foundation for developing more adaptive salt production policies tailored to regional conditions.
Co-Authors Agustina, Ninik Aries Dwi Siswanto Ary Giri Dwi Kartika Ashari Wicaksono Asih, Eka Nurrahema Ning Camila, Aysyah Fitria Fadholi, Bahri Fitri, Dewi Anugrah Hafiludin, H Hariyanti, Amalia Hidayat, Agriananta Fahmi Ilham Maulana Ira Fatmawati Jannah, Ana Naimatul Kartika Dewi Lailatul Fauziyah Mu’min, Bisri Khairul Nizar Amir Novi Indriyawati Nuzula, Nike Ika Onie Wiwid Jayanthi Putri, Dwi Syadina Rahmadani, Putri Ayu Ramadhani, Andini Rizky Rizqiyeh, St. Salsabila, Marwa Setiawati, Sulastiana Sofiya, Lely Syaifullah, Moch Umi Hanik Widiyawati, Devita Wiwit Sri Werdi Pratiwi, Wiwit Sri Werdi Yoseva, Vellia Yulitasari, Fara’idhya Intan