👉 The horse fluid, also known as synovial fluid, is a vital lubricant and nutrient carrier found in the joints of horses. It is produced by specialized cells called synoviocytes within the joint capsule and circulates through the joint space, reducing friction between the articular cartilage surfaces during movement. This fluid also helps to nourish the cartilage and synovial membrane, maintaining joint health and function. In horses, the high volume of synovial fluid produced ensures smooth and pain-free movement, crucial for their athletic performance and overall well-being.