The Effect of Potassium Diformate as Feed Additive on Immune Performances of Nilem (&lt;i&gt;Osteochilus hasselti&lt;/i&gt; Valenciennes, 1842) Under Infection of &lt;i&gt;Aeromonas hydrophila&lt;/i&gt;

Ibnu Bangkit Bioshina Suryadi,Rosidah Rosidah,Desty Nurul Ulfa,Ayi Yustiati

doi:10.20884/1.oa.2020.16.1.734

The Effect of Potassium Diformate as Feed Additive on Immune Performances of Nilem (<i>Osteochilus hasselti</i> Valenciennes, 1842) Under Infection of <i>Aeromonas hydrophila</i>

Ibnu Bangkit Bioshina Suryadi, Rosidah Rosidah + Show 2 more

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https://doi.org/10.20884/1.oa.2020.16.1.734

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Journal: Omni-Akuatika	Publication Date: Jul 29, 2020
Citations: 1	License type: CC BY 4.0

Affiliation: Padjadjaran University

Abstract

This research aims to determine the most effective dosage of potassium diformate additives in feed to increase the body resistance of nilem carp (Osteochilus hasselti). This research used Complete Random Design (CRD) experimental method with 4 treatments and 4 replications. The treatment used was the addition of potassium diformate on feed (0 %, 0.1 %, 0.3 % and 0.5 %). After 28 days of treatment, nilem fingerlings were challenged with Aeromonas hydrophila bacteria with a density of 108 cfu ml-1. Parameters observed were the number of leukocytes, erythrocytes, survival rate, clinical symptoms and water quality. The result showed that leukocytes and erythrocytes number were significantly different in each treatment. Meanwhile, leukocytes and erythrocytes number of nilem fingerlings in challenged test were increased and decreased due to the addition of potassium diformate and A. hydrophila infection. Clinical symptoms after challenged test were relatively similar such as haemorhagic, ulceration, exopthalmia, dropsy and abnormal swimming movements. Therefore, survival rate of nilem fingerlings with 0.3 % of potassiun diformate was the highest compared to other treatments, namely 81.67 %.

Highlights

Nilem carp (Osteochilus hasselti) is one of the freshwater fish commodities that are widely cultured by the community, especially in WestJava (Mulyasari et al, 2010)
This research aimed to determine the most effective dosage of potassium diformate additives in feed to increase the immune performance of nilem carp (Osteochilus hasselti)
Novindo Agritech Utama, South Tangerang, Indonesia); A. hydrophila isolates from Molecular Microbiology and Biotechnology Laboratory Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran; and commercial feed (FF999 produced by PT Central Proteina Prima TBK, South Jakarta, Indonesia)

Summary

Introduction

Nilem carp (Osteochilus hasselti) is one of the freshwater fish commodities that are widely cultured by the community, especially in WestJava (Mulyasari et al, 2010). Nilem carp (Osteochilus hasselti) is one of the freshwater fish commodities that are widely cultured by the community, especially in West. The fish has high economic value and the eggs have the potential to become export commodities as a substitute for caviar (Subagja et al, 2006). The market for nilem carp is quite extensive, ranging from traditional markets, restaurants to exports. Its economic value will increase if it has been processed and made into products such as jerky, fried baby fish, pindang, smoked and canned (Yandra et al, 2014). Along with the high market demand for nilem carp, it must be supported by increasing production from aquaculture. The main obstacle in aquaculture production is the occurrence of disease outbreaks (Mishra et al, 2017)

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