The study looked at the levels of calcium, phosphorus, and alkaline phosphatase in Yak at different ages. They found that young Yak had higher calcium levels, but as they grew older, the levels decreased significantly. This suggests that growing Yak may have a calcium deficiency. Additionally, the phosphorus levels were lower in 6-month-old Yak compared to other age groups. The activity of alkaline phosphatase was higher in young Yak and decreased as they aged. Overall, the results indicate that there may be issues with calcium deficiency and an imbalance of calcium to phosphorus levels in growing Yak.