The Effect of Potassium Diformate Addition to the Growth Rate and the Activity of Protease Enzyme of Giant Gourami Fingerlings (Osphronemus goramy Lacepede, 1801)

• Authors: Ayi Yustiati , Algi Azmi Nugraha , Ibnu Bangkit Bioshina , Yuli Andriani
• Languages of publication: EN

Abstracts

EN

This research aims to investigate the effect of adding potassium diformate to commercial feed on the increase of absolute growth rate and the activity of protease enzyme. The research was conducted from July to October 2019 in the Aquaculture Laboratory Faculty of Fisheries and Marine Sciences, Padjadjaran University. The method applied in this research was an experimental method using a Completely Randomized Design (CRD), which consists of four treatments and four replications. The treatments were: (A) without addition of Potassium diformate (control), (B) addition of Potassium diformate by 0.3%, (C) addition of Potassium diformate by 0.5%, and (D) addition Potassium diformate by 0.8%. The test fish were 300 giant gouramis with 4-6 cm in length. The containers used in this research were 16 rearing aquaria with a size of 40  30  40 cm3. The density of studied giant gourami fingerlings was 10 fish per aquarium. The rearing period was 40 days. The feeding rate was 3% from biomass. Water quality parameters (temperature, pH, and dissolved oxygen), the absolute growth rate, feed conversation ratio and survival rate were observed every 10 days. The protease enzyme activities were observed at the end of the research. Data on the absolute growth rate, feeding conversion ratio, the characteristics of protease enzyme and survival rate were analyzed using the Analysis of Variance (ANNOVA) continued with Duncan’s Multiple Range Test at the level of 95%, while the water quality was analyzed descriptively. The results show that the addition of potassium diformate by 0.3% gave the best result with the absolute growth rate of 1.50%, feed conversion ratio of 2.70, protease enzyme activity by 634.2 μ/mL and survival rate of 100%.

Keywords

EN

Osphronemus goramy; giant gourami; growth; potassium diformate; protease enzyme

Discipline

• FISHERIES: FISHERIES

• Publisher: Scientific Publishing House „DARWIN”
• Journal: World News of Natural Sciences
• Year: 2020
• Volume: 32
• Pages: 74-86

Contributors

author

Ayi Yustiati

• Faculty of Fisheries and Marine Sciences, Padjadjaran University, Bandung – Sumedang KM.21 Jatinangor 45363, Indonesia

author

Algi Azmi Nugraha

• Faculty of Fisheries and Marine Sciences, Padjadjaran University, Bandung – Sumedang KM.21 Jatinangor 45363, Indonesia

author

Ibnu Bangkit Bioshina

• Faculty of Fisheries and Marine Sciences, Padjadjaran University, Bandung – Sumedang KM.21 Jatinangor 45363, Indonesia

author

Yuli Andriani

• Faculty of Fisheries and Marine Sciences, Padjadjaran University, Bandung – Sumedang KM.21 Jatinangor 45363, Indonesia

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• Document Type: article