¹Aydın Adnan Menderes University, Faculty of Veterinary Medicine, Department of Veterinary Anatomy, TR-09016 Aydın - TÜRKİYE
²University of Veterinary & Animal Sciences, Anatomy Section, Department of Basic Sciences, 35200, Jhang Campus, PAKISTAN
³Aydın Adnan Menderes University, Faculty of Veterinary Medicine, Department of Veterinary Physiology, TR-09016 Aydın - TÜRKİYE
⁴University of Veterinary & Animal Sciences, Department of Clinical Sciences, Theriogenology Section, 35200 Jhang Campus, PAKISTAN DOI : 10.9775/kvfd.2025.34495 Quails (Coturnix coturnix japonica) are a significant migratory bird species, widely recognised for their rapid growth and efficient production of meat and eggs, making them an important component of the poultry industry. Despite their economic importance, the impact of environmental factors, particularly light and stocking density, on their skeletal health remains an area requiring further investigation. This study addresses this gap by examining how these factors influence the morphometric and mechanical properties of quail long bones. This study aimed to investigate the effects of different light colors and stocking densities on the morphometric and mechanical properties of long bones in Japanese quails. The experiment utilised three different light colors (white, blue, and green) and two different stocking densities (100 cm²/animal and 200 cm²/animal). A total of 120 Japanese quails (72 male, 48 female) were used to evaluate morphometric (length, diameter) and mechanical (bending strength, stiffness) properties. It was determined that light color significantly affected bone stiffness but had no marked effect on bone strength and elastic modulus. Furthermore, it was observed that the morphometric and mechanical properties of female quail bones were higher than those of males. These findings highlight the impact of light on quail bone health and open new avenues for future research. Stocking density was found to have no significant effect on bone properties. Keywords : Biomechanics, Bone, Light-emitting diodes, Quail, Tibiotarsus