Effect of Curcuma Longa on Growth and Lipid Profile of Broiler Chickens across Seasons

The poultry sector plays a critical role in driving economic growth and meeting the protein needs of the population. Recently, natural additives like turmeric (Curcuma longa) have attracted attention for their antimicrobial properties and their potential to reduce the reliance on antibiotics in poultry feed. This study evaluated the effects of turmeric supplementation at varying concentrations on broiler chickens during winter and summer seasons. Over a 42-day period, 40 broilers were divided into four groups: Control, Experimental Group 1 (1% turmeric), Experimental Group 2 (1.5% turmeric), and Experimental Group 3 (2% turmeric). Vaccination against Newcastle Disease (ND) and Infectious Bursal Disease (IBD) was performed. Feed intake was recorded daily, and blood samples were collected on day 35 for lipid profile analysis and antibody titer measurement. At the end of the study (day 42), body weights were measured to determine the feed conversion ratio (FCR), and chickens were slaughtered for carcass evaluation. Results indicated that 2% turmeric supplementation significantly (p<0.05) improved body weight gain, reduced FCR, and enhanced carcass quality, particularly in the breast, thigh, and liver. Lipid profile analysis revealed reductions in cholesterol, LDL, and triglycerides, along with an increase in HDL levels. ND and IBD titers were also improved. The study concluded that 2% turmeric supplementation was the most beneficial for broiler chickens, demonstrating positive effects across both seasons compared to lower concentrations.