| 
 Sains Malaysiana 52(6)(2023):
            
          1607-1617 http://doi.org/10.17576/jsm-2023-5206-01
            
           
            
             Supplementary Feed Potential on Histology
            and Immune Response of Tilapia (Oreochromis niloticus L.) Exposed to Microplastics
            
           (Potensi Makanan Tambahan ke atas Histologi dan Tindak Balas Imun Tilapia (Oreochromis niloticus L.) Terdedah kepada Mikroplastik)
            
           
             
           ALFIAH
            HAYATI1,*, MANIKYA PRAMUDYA1,
            HARI SOEPRIANDONO1, LISTIJANI SUHARGO1, FIRLI RAHMAH
            PRIMULA DEWI1, BAYYINATUL MUCHTAROMAH2 & ADAMU AYUBU
            MWENDOLWA3
              
             
             
           1Department of Biology, Faculty
            of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
            
           2Biology Study Program,
            Faculty of Science and Technology, Universitas Islam Negeri Maulana Malik Ibrahim,
            Malang, Indonesia
            
           3Department of Biological
            Sciences, Faculty of Science, Mkwawa University
            College of Education, Tanzania
            
           
             
           Received: 16 February 2023/Accepted: 31 May 2023
            
           
             
           Abstract
            
           Polyester microplastics (PS) are toxic and hazardous chemicals
            in the ecosystem that can induce stress. Disposing PS articles into the
            environment can negatively impact health of aquatic biota, including fish. This
            study aimed to investigate the potential of probiotics or vitamin C
            supplementation in improving the histological structure of organs and cytokine
            secretion in tilapia fish exposed to PS. Thirty-six tilapia were divided
              into 12 groups consisting of treatment groups (four PS concentration
              variations: 0, 0.1, 1, and 10 mg/L). Each treatment was given three types of
              feed: Commercial feed alone, commercial feed containing
                probiotics (200 mL/kg), and commercial feed containing vitamin C (100 mg/kg).
                  The study had a sample size of n=3. After treatment was completed, all parameters were
                    measured. The result showed that the addition of probiotics and vitamin C could
                    decrease TNF-α levels and increase IFN-γ levels. Probiotics and
                    vitamin C prevent healthy cells to be damaged by pro-inflammatory cytokines.
                    The percentage of normal hepatocytes increased significantly in all treatment
                    groups with the addition of probiotics or vitamin C. Furthermore, the
                    percentage of hepatocytes with swelling and necrosis decreased significantly in
                    treatment groups (p < 0.05). Additionally, villi height, lamina propria width, submucosa height, and the number of goblet
                    cells all increased significantly in all treatment groups with the
                    administration of probiotics or vitamin C (p < 0.05). Overall, both
                    probiotics and vitamin C supplements have the potential to maintain fish
                    health. Vitamin C exhibits a greater potential than probiotics in regulating
                    immune responses. Meanwhile, both probiotics and vitamin C supplements have
                    potential to inhibit damage to the hepatic and intestine structures of fish
                    exposed to PS.
                    
                   
             
           Keywords:
            Fish; fisheries; freshwater; polystyrene; probiotics
            
           
             
           Abstrak
            
           Mikroplastik poliester (PS) adalah bahan kimia toksik dan berbahaya dalam ekosistem yang boleh menyebabkan tekanan. Penyingkiran artikel PS ke alam sekitar boleh memberi kesan negatif kepada kesihatan biota akuatik, termasuk ikan. Penyelidikan ini bertujuan untuk mengkaji potensi probiotik atau suplemen vitamin C dalam memperbaiki struktur histologi organ dan rembesan sitokin pada ikan tilapia yang terdedah kepada PS. Tiga puluh enam tilapia dibahagikan kepada 12 kumpulan yang terdiri daripada kumpulan rawatan (empat variasi kepekatan PS: 0, 0.1, 1 dan 10 mg/L). Setiap rawatan diberi tiga jenis makanan: Makanan komersial sahaja, makanan komersial yang mengandungi probiotik (200 mL/kg) dan makanan komersial yang mengandungi vitamin C (100 mg/kg). Kajian ini mempunyai saiz sampel n=3. Selepas rawatan selesai, semua parameter diukur. Hasil kajian menunjukkan bahawa penambahan probiotik dan vitamin C boleh mengurangkan tahap TNF-α dan meningkatkan tahap IFN-γ. Probiotik dan vitamin C menghalang sel yang sihat daripada rosak oleh sitokin pro-radang. Peratusan hepatosit normal meningkat dengan ketara dalam semua kumpulan rawatan dengan penambahan probiotik atau vitamin C. Tambahan pula, peratusan hepatosit dengan bengkak dan nekrosis menurun dengan ketara dalam kumpulan rawatan (p < 0.05). Selain itu, ketinggian vili, lebar lamina propria, ketinggian submukosa dan bilangan sel goblet semuanya meningkat dengan ketara dalam semua kumpulan rawatan dengan pemberian probiotik atau vitamin C (p
            <0.05). Secara keseluruhan, kedua-dua probiotik dan suplemen vitamin C berpotensi untuk mengekalkan kesihatan ikan. Vitamin C menunjukkan potensi yang lebih besar daripada probiotik dalam mengawal tindak balas imun. Sementara itu, kedua-dua probiotik dan suplemen vitamin C berpotensi untuk menghalang kerosakan pada struktur hati dan usus ikan yang terdedah kepada PS.
            
           
             
           Kata kunci: Air tawar; ikan; perikanan; polistirena; probiotik
            
           
             
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           *Corresponding author; email: alfiah-h@fst.unair.ac.id   
            
           
            
            
               
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