Cendaña, Justine A.2026-03-282026-03-282025-05Cendaña, J. A. (2025). Effects of Azolla (Azola pinnata) extract on the growth performance and carcass traits in broiler chicken. [Unpublished Undergraduate Thesis]. Don Mariano Marcos Memorial State University - North La Union Campus, Sapilang, Bacnotan, La Union. Lakasa ti Sirib, DMMMSU Insitutional Repository.https://lakasa.dmmmsu.edu.ph/handle/123456789/1241This study assessed the impact of Azolla pinnata extract as a drinking water supplement on broiler chicken performance. Twenty-five Cobb broilers were divided into five groups: control (plain water), antibiotic growth promoter, and 1%, 3%, and 5% Azolla extract. Key metrics, including growth performance, carcass traits, organoleptic evaluation, and cost analysis, were analyzed using One-Way Analysis of Variance, descriptive statistics and Tukey’s HSD with SPSS software. Results indicated that broilers receiving 1% Azolla extract (T1) exhibited the highest final weight (1750g), net weight gain (1692g), and best feed conversion ratio (1.88), outperforming the antibiotic and higher-concentration groups. Organoleptic evaluations favored the 3% extract (T2) for taste and texture. Profitability was highest in the control and 1% Azolla groups. The findings suggest that 1% Azolla pinnata extract is a viable, cost-effective alternative to antibiotics, enhancing broiler growth and meat quality without compromising economic returns.en-USThesis