The Effect of Kaempferia galanga L. Extract on Blood Profile and Relative Weight of Visceral Organs Indonesian Native Chicken

¹ Department of Animal Science, University of Muhammadiyah Malang, Malang 65144, East Java, Indonesia
² Agribusiness Department, Lumajang University, Lumajang 67381, East Java, Indonesia
³ School of Clinical Sciences, Monash University, Melbourne, Australians
⁴ Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia

^* Corresponding author: ruslitonda@unilu.ac.id

Abstract

This study investigated the effects of Kaempferia galanga L. supplementation on blood profiles and the relative weight of visceral organs in Indonesian native chickens. A total of 100 day-old chicks were assigned to a Completely Randomized Design with five dietary treatments: 0% (P0), 0.5% (P1), 1% (P2), 1.5% (P3), and 2% (P4), each with four replications of five birds. The extract was administered through feed from day 22 to 55. Data were analyzed using one-way ANOVA followed by Duncan's multiple range test (p < 0.05). The results showed that K. galanga L. significantly decreased blood cholesterol and triglyceride concentrations. Cholesterol levels declined from 191.22 mg/dL (P0) to 125.34 mg/dL (P3) and 128.38 mg/dL (P4), while triglycerides decreased from 97.13 mg/dL (P0) to 79.51 mg/dL (P3). LDL concentrations were also markedly reduced in treated groups (84.95-116.08 mg/dL) compared with the control (149.06 mg/dL). Although hemoglobin slightly decreased at the highest dose, plasma total protein increased at P4 (4.82 g/dL), suggesting enhanced protein metabolism. Relative organ weights indicated significant increases in pancreas and duodenum mass at P3, implying improved digestive capacity. In conclusion, dietary inclusion of K. galanga L. extract enhances lipid metabolism, lowers LDL and cholesterol, and supports digestive organ development, with the optimal effect observed at a 1.5% supplementation level.