Effect of Calcium to Phosphorus Ratio in Its Utilization in Growing Laboratory Rhesus Monkey

Forty healthy growing laboratory rhesus monkeys were randomly divided into A and B group. According to calcium to phosphorus ratio (1.2:1,1.4:1,1.6:1,1.8:1 and 2.0:1) each group was divided into five groups (A 1 ,A2,A3,A4,A5 and B1 ,B2,B3,B4,B5 respectively), including 2 male and 2 female in each. The level of dietary calcium or phosphorus and calcium to phosphorus ratio were adjusted by CaCO3, CaHPO3and NaH2PO4. The result showed, that no effect of calcium to phosphorus ratio on its utilization in growing laboratory rhesus monkeys were observed in A groups (P0.05). Calcium and phosphorus utilization of B1 group were the highest in B groups (P0.01). The results suggested that the calcium to phosphorus ratio 1.2:1 with phosphorus level 0.89% in dietary was the best choice for calcium and phosphorus utilization in growing laboratory rhesus monkeys.