OPTIMIZING BROILER PRODUCTIVITY: INTERACTIONS BETWEEN STOCKING DENSITY AND DIETARY ENERGY-PROTEIN PROFILES IN THE PHILIPPINE SETTING

Cubita, Robert Rey; Villanueva, Jesse Jay Orellana

doi:10.33899/mja.2025.161396.1621

	OPTIMIZING BROILER PRODUCTIVITY: INTERACTIONS BETWEEN STOCKING DENSITY AND DIETARY ENERGY-PROTEIN PROFILES IN THE PHILIPPINE SETTING
Mesopotamia Journal of Agriculture
Article 10, Volume 53, Issue 4, December 2025, Pages 136-148 PDF (564.37 K)
Document Type: Research
DOI: 10.33899/mja.2025.161396.1621
Authors
Robert Rey Cubita¹; Jesse jay Orellana Villanueva^* ²
¹Animal Science Department, College of Agriculture, Mindanao State University Main Campus, Marawi City, Lanao del Sur, Philippines
²Mindanao state university main campus marawi city
Abstract
This study evaluated the effects of varying stocking densities and dietary energy-protein levels on broiler performance, carcass traits, organ weights, and economic outcomes. A total of 360 straight-run Cobb 500 chicks were used in a 3 × 3 factorial design with three stocking densities (4, 8, and 12 birds/m²), three energy levels (2825, 2784, and 2744 kcal/kg ME), and three crude protein levels (18.26%, 20.26%, and 22.26%). Each treatment was replicated five times. Growth performance parameters—average daily gain (ADG), average daily feed intake (ADFI), and feed conversion ratio (FCR)—were measured, along with carcass yield and organ weights. No significant differences were observed in ADG, ADFI, live weight, or carcass characteristics among treatments. However, the combination of 12 birds/m² and the highest protein level (22.26% CP, 2744 kcal/kg ME) resulted in the lowest FCR, indicating improved feed efficiency. Organ weights were not significantly affected by treatments. These findings provide insights into optimizing broiler productivity under different rearing conditions.
Keywords
Broiler chickens; Broiler productivity Crude protein; Metabolizable energy; Stocking density

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