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Asaad, Andi Indra Jaya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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The Preliminary Study of Electrigens Potential from Wastewater as The Manifestation Of "Khalifah Fil Tadbir" Conception Hafsan, Hafsan; Asaad, Andi Indra Jaya; Arsyad, Muh Ali; Ahmad, Arifuddin
Jurnal Biotek Vol 12 No 2 (2024): DESEMBER
Publisher : Department of Biology Education of Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jb.v12i2.50112

Abstract

This study reveals that the super-intensive shrimp farming waste from Punaga can be used as a source of electricity through a bio-electrogenic process based on indigenous potential bacteria from the waste. The results show that four types of potential bacteria isolated from the super-intensive shrimp farming waste can each produce a significant average power density. Bacteria isolate D (Bacillus sp) showed the highest electrogenic potential with an average power density of 38.55±0.87 mW/m², followed by bacteria isolate B (Pseudomonas sp) with an average power density of 34.72±2.80 mW/m², bacteria isolate C (Bacillus sp) with an average power density of 29.90±5.26 mW/m², and bacteria isolate A (Bacillus sp) with an average power density of 25.90±1.69 mW/m². This study shows that the super-intensive shrimp farming waste from Punaga can be utilized as a source of electricity through a bio-electrogenic process using certain potential bacteria, such as Bacillus sp and Pseudomonas sp isolates. The development of waste treatment technology as a source of electricity through the bio-electrogenic process can provide a significant contribution to addressing global energy and environmental issues. This can be considered an implementation of the concept of "khalifah fil tadbir", in which humans act as stewards of the earth, responsible for using natural resources wisely and being accountable for the resulting environmental impacts.
EFEK BLIND FEEDING UNTUK MENINGKATKAN PERTUMBUHAN POST LARVA UDANG VANAME KEPADATAN TINGGI DAN PENGARUHNYA TERHADAP KUALITAS AIR [The Effect of Blind feeding to Increase Post Larva Growth of High-density Vaname Shrimp and Their Effect on Water Quality] Fahrur, Mat; Syah, Rachman; Makmur, Makmur; Suwoyo, Hidayat Suryanto; Asaad, Andi Indra Jaya; Taukhid, Imam
Berita Biologi Vol 22 No 3 (2023): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/beritabiologi.2023.2975

Abstract

Blind feeding is a feed dosage of feeding shrimp cultivation that is carried out without looking at the shrimp biomass conditions for the first 30 days. The goal is to ensure that shrimp get adequate feed intake in the early stages of growth, yet blind feeding often has an impact on the decline in water quality as a result of overfeeding. The study aimed to evaluate the effect of the blind feeding method on the growth of vaname shrimp (Litopenaeus vannamei) and water quality. The treatments to be tested were the quantity of feed: (a) 123.5 kg/100,000 shrimp; (b) 148.2 kg/100,000 shrimp; (c) 172.9 kg/100,000 shrimp; (d) 197.6 kg/100,000 shrimp; and (e) 222.3 kg/100,000 shrimp. The dose range of blind feeding referred to the habits applied by the cultivators in the field. The shrimp used was PL 12 with a density of 1,000 individuals/m3, which were maintained for 30 days in an aquarium container of 50 x 40 x 30 cm or a volume of 50 liters. The feed was given four times a day at 8.00, 12.00, 16.00, and 20.00. The results of the study showed that the blind feeding feed dosage had a significant effect on the absolute growth of shrimp and total ammonia nitrogen (P < 0.05). The blind feeding treatment (c), which was 172.9 kg/100,000 shrimps, produced the best growth with a lower total ammonium nitrogen so it is recommended that it be applied in shell cultivation in the first 30 days of maintenance.
Co-Authors Arifuddin Ahmad, Arifuddin Arsyad, Muh Ali Fahrur, Mat Hafsan, Hafsan Hidayat Suryanto Suwoyo Makmur Makmur Rachman Syah Taukhid, Imam