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Journal : Journal of Agriprecision

Impact of Dietary Coconut Oil (Cocos nucifera L.) on Aeromonas hydrophila Colonization and Lactic Acid Bacteria Populations in Zebrafish (Danio rerio): Implications for Aquaculture Health Qosimah, Dahliatul; Iwanegbe, Izuwa; Efendi, Achmad; Nasution, Angellica Christine; Hardiana, Ameilia; Zahrany, Naura Nisrina; Satria Putra, Pramadhita Wika; Daniswara, Respati Satya
Journal of Agriprecision & Social Impact Vol. 2 No. 1 (2025): March: JAPSI (Journal of Agriprecision & Social Impact)
Publisher : CV. Komunitas Dunia Peternakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62793/japsi.v2i1.44

Abstract

The Aeromonas hydrophila (A. hydrophila) Aeromonas hydrophila (A. hydrophila) is an opportunistic pathogen causing significant losses in aquaculture. The overuse of antibiotics has led to antimicrobial resistance, necessitating alternative control strategies. This study evaluates the potential of coconut oil to inhibit A. hydrophila colonization in gills, brain, and gut microbiota of zebrafish while enhancing lactic acid bacteria (LAB) populations. A completely randomized design was used with five groups: a negative control (healthy), a positive control (A. hydrophila-infected), and three treatment groups (1000 mg/kg, 2000 mg/kg, 4000 mg/kg coconut oil) for 60 days. Bacterial load in gills and brain was quantified using the pour plate method on Rimler-Shotts agar, while LAB in the gut was assessed using de Man, Rogosa, and Sharpe Agar (MRSA). 1000 mg/kg coconut oil significantly reduced A. hydrophila in the gills (0.3 ± 0.09 × 10⁷ CFU/ml) compared to the positive control (138.13 ± 11.26 × 10⁷ CFU/ml). 4000 mg/kg was most effective in reducing A. hydrophila in the brain (1.78 ± 0.51 × 10⁷ CFU/ml vs. 4.53 ± 0.40 × 10⁷ CFU/ml in the positive control). LAB populations significantly increased (p < 0.0001), with the highest count at 1000 mg/kg (9.20 ± 0.87 × 10⁷ CFU/ml), followed by 2000 mg/kg (3.16 ± 0.13 × 10⁷ CFU/ml), and 4000 mg/kg (1.78 ± 0.35 × 10⁷ CFU/ml). Coconut oil effectively enhances LAB populations, inhibits A. hydrophila colonization, and acts as a natural antimicrobial and probiotic agent. The 1000 mg/kg dose is optimal for gut microbiota improvement, while 4000 mg/kg protects brain tissues, highlighting coconut oil’s potential as an eco-friendly alternative to antibiotics in aquaculture.
Co-Authors ., Damingun Achmad Wicaksono Adi Firmanzah Akbar, Sa'idah Akhmad Yanuar Fahmi Pamungkas Al Amin, Muhammad Aldy, Jeri Ali Syahbana Aliani, Ardia Anggriawan, Muhammad Verry Ani Budi Astuti Anitarini, Fani Anitarini, Fany Ardhi Khoirul Hakim Arditama Putra Rochmanullah Arini, Luthfia Hanun Yuli Atiek Iriany Atik Pramesti Wilujeng, Atik Pramesti Atika Putri, Tiara Aulia Rahman Balqis, Rani Diana Bestari Archita Safitri Dahlia Damayanti, Fransiska Erna Damingun Damingun, Damingun Danang Ariyanto Daniswara, Respati Satya Daulina, Fitriya Dellawaty Supraba Dewi Yuniar Dian Roshanti Eni Sumarminingsih Ermi Utami Ervia Toga Fachri Faisal Fernandes, Adji Achmad Rinaldo Fernandes, Adji Ahmad Rinaldo Firmanti, Tria Anisa Fitriani, Suci Fransiska Erna Damayanti Gani, Friansyah Hardiana, Ameilia Heni Kusdarwati Henny Pramoedyo Henny Pramoedyo Ivan Rachmawan Iwanegbe, Izuwa Jailani, Haliza Mutiasari Jubaidi Junianto, Fachira Haneinanda Kusumawati, Diana Lidia Hastuti Loekito Adi Soehono Ludfi Djakfar Lusia, Dwi Ayu Luthfatul Amaliana M. Risal, M. mahdaniah, mahdaniah Mandey, Steifel Robert Melandari, Defi Miftaviana Zahira Zavy Mochammad Hisyaam Darwin Muhammad Al Amin Nanda Rizqia Pradana Ratnasari, Nanda Rizqia Pradana Nasution, Angellica Christine Nasywa, Alfiyah Hanun Ni Wayan Surya Wardhani Novi Nur Aini Nurjannah Nurjannah Pipit Hariyono Prasetyawan, Riyan Dwi Putri, Henida Ratna Ayu Putri, Novita Surya Qosimah, Dahliatul reiszasro, jingga Renita Yuniar Reny Ramahdani Reny Ramahdani Rohmah, Devi Azarina Manzilir Rusty, Atnin Sintania Aprilla Salsabila, Santi Wahyu Satria Putra, Pramadhita Wika Semathea, Karen Setiawati, Ananda Sholihin Sholihin Soekardjo Solimun Solimun Solimun, Solimun Suci Astutik Sukma, Melya Supriyanto Supriyanto Ulandari, Efy Ullah, Mohammad Ohid Vera Anitra Wardhani, Ni Wayan S. Warsi, Nawang Weni Utomo, Candra R. W. S Weni Utomo, Candra Rezzing Wigbertus Ngabu Wiryanti, Ni Ketut Ledi Wuriani, Wuriani Yulianto, Shalsa Amalia Zahra, Septi Nafisa Ulluya Zahrany, Naura Nisrina