Hydroxyproline is the sensitive biochemical marker reacting collagen fibres changes .
羟脯氨酸的含量是反映胶原纤维变化的敏感生化指标。
In this paper , the important physiological functions and bioactivities of hydroxyproline and the relationship between the variations of hydroxyproline content in serum and urine and the metabolic indices of animal are discussed .
