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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Asian Journal of Agriculture
Tampus, Annielyn D.
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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First Evidence of Potential Microplastic Ingestion of Yellow Striped Goat Fish Upeneus vitattus (Forsskal, 1775) Caught in Malita, Davao Occidental, Philippines Bersaldo, Michael Jeriel Inocentes; Lacuna, Maria Lourdes Dorothy G.; Orbita, Maria Luisa S.; Tampus, Annielyn D.; Avenido, Pedro M.; Macusi, Edison D.
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 1 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.1.48-60

Abstract

Microplastic (MP) study in the Philippines is gaining attention because of the recent trends in macro-microplastic study worldwide and there is already a call for research to help the degrading marine environment in the country. No study in Malita, Davao Occidental was conducted to document microplastic contamination. To address this gap, 30 goat fishes collected in 6 sampling stations were dissected and microplastic were extracted, counted, and characterized. Results revealed that 96.67% of samples were contaminated with microplastic. In terms of microplastic type, fiber was most dominant than fragments, in microplastic hue, color black was the most common and microplastic with size ranging from 50 to 500µm were usually observed. Comparable amount of microplastic was obtained in fish guts across stations (P>0.05) which means that fish ingestion of microplastic were evident in the area. Based on Correlation, the length (r2=0.13), wet weight (r2=0.17) and gut wet weight (r2=0.29) of the fish does not tell the amount of microplastic ingested by each yellow stripped goat fish since there is a weak relationship between the two parameters. The result suggests, Malita’s seawater is already polluted with microplastic and demersal fishes that practice high site fidelity were very susceptible to microplastic ingestion. A stronger solid waste management policy must be implemented and activities such coastal clean ups and information drives must be initiated by all stakeholders. Further, microplastic investigation in seawater and sediments must be conducted to have a more detailed study of the whole extent of microplastic contamination in Malita, Davao Occidental.
Antibiotic residues in poultry and food safety risks in North Cotabato, Philippines HADJI IBRAHIM, AYESHA B.; JUMAO-AS, CROMWEL M.; TAMPUS, ANNIELYN D.; TABUGO, SHARON ROSE M.; ADAMAT, LIZA A.; JOSE, MARK ANTHONY I.; TANABE, MARIA ELENA N.; AMPARADO, OLIVE A.
Asian Journal of Agriculture Vol. 9 No. 2 (2025)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g090213

Abstract

Abstract. Hadji Ibrahim AB, Jumao-As CM, Tampus AD, Tabugo SRM, Adamat LA, Jose MAI, Tanabe MEN, Amparado OA. 2025. Antibiotic residues in poultry and food safety risks in North Cotabato, Philippines. Asian J Agric 9: 463-471. Poultry production in North Cotabato, Philippines, remains a key agricultural sector, yet the extent of antimicrobial residue contamination in retail chicken meat is poorly documented. This study aimed to detect and quantify antibiotic residues in organic and non-organic chicken meat sold in public wet markets using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Thirty-six whole dressed chickens (18 organic and 18 non-organic) were purchased across six municipalities, yielding 72 tissue samples (wings and legs). Six antibiotics namely doxycycline, enrofloxacin, norfloxacin, tilmicosin, amoxicillin, and trimethoprim/sulfamethoxazole were targeted. Doxycycline was the most frequently detected compound, present in 100% of non-organic and 50% of organic samples. Fluoroquinolones (enrofloxacin/norfloxacin) and tilmicosin (macrolide) were detected exclusively in non-organic leg tissues at frequencies of 66.7% and 50%, respectively. Residue concentrations ranged from <1.5 ?g/kg to 37.2 ?g/kg, with all values below Maximum Residue Limits (MRLs). No samples contained amoxicillin or trimethoprim/sulfamethoxazole. While a two-way ANOVA revealed no significant differences in mean residue concentrations by chicken part or production type (p>0.05), Chi-square tests revealed significant differences in detection frequency by production type (p<0.001) and by municipality (p=0.029). Non-organic samples consistently exhibited higher detection rates, with Pikit and Pigkawayan identified as geographic hotspots. These findings expose gaps in residue withdrawal compliance, certification credibility, and traceability in informal retail markets. The detection of residues in uncertified “organic” chicken underscores the urgent need for strengthened organic certification enforcement, farmer education, and municipality-level surveillance to align with the Philippine AMR Action Plan and ASEAN regional goals.
Co-Authors ADAMAT, LIZA A. AMPARADO, OLIVE A. Avenido, Pedro M. Bersaldo, Michael Jeriel Inocentes HADJI IBRAHIM, AYESHA B. JOSE, MARK ANTHONY I. JUMAO-AS, CROMWEL M. Lacuna, Maria Lourdes Dorothy G. Macusi, Edison D. Orbita, Maria Luisa S. TABUGO, SHARON ROSE M. TANABE, MARIA ELENA N.