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Fakhrunnas MA Jabbar
Universitas Islam Riau
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Immunology & microbiology

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Journal : Dinamika Pertanian

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PENGARUH RENTANG WAKTU PENINGKATAN SALINITAS TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN LARVA IKAN BAUNG (H. nemurus) Ahlun Nazar; Fakhrunnas MA Jabbar; Hisra Melati
DINAMIKA PERTANIAN Vol. 35 No. 3 (2019): Jurnal Dinamika Pertanian Edisi Desember 2019
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2019.vol35(3).7707

Abstract

This research is expected to be useful especially for fish farmers as additional information in raising baung fish. The method used was an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications namely: P1 = 5 ‰ per 3 days 7 ‰ per 3 days, 9 ‰ per 3 days, P2 = 5 ‰ per 5 days 7 ‰ per 5 days 9 ‰ per 5 days, P3 = 5 ‰ per 7 days 7 ‰ per 7 days 9 ‰ per 7 days, P4 = 5 ‰ per 9 days 7 ‰ per 9 days 9 ‰ per 9 days. The baung fish used for the study was obtained from spawning at the Fish Seed Center (BBI) of the Faculty of Agriculture, Riau Islamic University with a weight of 0.14 gr of baung fish/tail and 1.6 cm in length/tail. The container used is a jar a size of 10 liters. From the results of the study obtained the best absolute weight growth and absolute length of the treatment (P4) with a weight of 4.35 gr and a length of 1.84 cm, followed by treatment (P2) with a weight of 3.96 gr and P3 a length of 1.82 cm, (P3 ) weighing 3, 75 gr and P2, 1.73 cm long, and the lowest in treatment (P1) with a weight of 2.64 grams and a length of 1.28 cm. The daily weight growth rate in the treatment group (P2) was 17.31%, (P2) 15.17%, (P4) 13.18%, and the lowest (P3) was 12.60%. The best survival rate for treatment (P4) was 72.00%, followed by treatment (P3) at 54.67%, and the lowest for treatment (P1) was 6, 67%. The results of water quality measurements in this study were temperature 28-300C, pH 6-7, dissolved oxygen 0.4 ppm, ammonia 0.05 ppm. Based on the observations of water quality during the study was within the range of tolerance for the growth and life of baung fish.
PEMBERIAN PUPUK ORGANIK CAIR (POC) DENGAN DOSIS BERBEDA TERHADAP KELIMPAHAN Chlorella sp. Muhammad Nur; Rosyadi; Fakhrunnas MA Jabbar; Khairul Hadi
DINAMIKA PERTANIAN Vol. 39 No. 1 (2023): Jurnal Dinamika Pertanian Edisi April 2023
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2023.vol39(1).14072

Abstract

Liquid Organic Fertilizer (POC) has a high amount of nutrients that can be used as a nutrient source for the growth of Chlorella sp. This research aimed to determine the effect of Liquid Organic Fertilizer on the growth and abundance of Chlorella sp. cells and to obtain the optimal dosage of Liquid Organic Fertilizer for the growth of Chlorella sp. This research was conducted at the Laboratory of Microalgae and Fish Nutrition, Faculty of Agriculture, Islamic University of Riau. The research used a Completely Randomized Design (CRD) with four treatments, specifically giving POC doses of 2.5cc, 5cc, 7.5cc, and 10cc/l of water with three repetitions. The measured changer is growth and abundance, biomass, and parameters of the culture media such as temperature, pH, nitrate, and phosphate. The research results obtained the highest abundance of Chlorella sp. cells. amounted to 7,966,667 cells/ml at the POC dose of 5 cc/l of water, and the peak was on the 16th day, the lowest dose of 2.5 cc/l was 6,483,333 cells/ml, cell-specific growth rate Chlorella sp. during the study ranged from 0.074-0.087/hr. The highest amount of biomass was 0.3629 gr/l, parameters of the culture media such as temperature ranged from 26-30oC, pH of 6-8, nitrate 1.976-4.802 mg/l and phosphate 0.360-2.680 mg/l.
Co-Authors Ahlun Nazar Harni Sri Mulyani Hisra Melati Khairul Hadi Muhammad Hasby Muhammad Nur Rosyadi Safitriani Safitriani T Iskandar Johan T. Iskandar Johan