【摘要】 研究了目前饲料生产中常用的磷源,即磷酸氩钙(含磷18%)和磷酸三钙(含磷14.8%),对猪生长性能、血液中钙、磷浓度以及对增重成本的影响。结果表明:以磷酸氩钙为磷源时,猪的日增重及饲料报酬均高于磷酸三钙组(P(0.05);采食量差异不显著;磷酸氩钙组每千克增重成本低于磷酸三钙组而具有明显的经济效益。据此得出结论:20～60kg阶段的生长猪可优先选用磷酸氩钙作为日粮中的磷源。更多还原

【Abstract】 Calcium phosphate (phosphorus 18%)and tricalcium phocphate (phosphorus 14.8%) as phosphorus resources commonly used in animal feeds at present were studied in their effect on pig’s growing performance, the concentration of calcium and phosphorus in blood as well as the cost of liveweight gain. The results showed that using calcium phosphate as phosphorus supply the daily liveweight gain and feed conversion rate were higher than those of the tricalcium phosphate group(P<0.05);feed intakes did not differ significantly;and the cost of per kg of weight gained was lower than that of the tricalcium phosphate group, indicating apparent economic benefits. All these come to a conclusion:for the pigs at the period of 20～60kg, priority can be given to calcium phosphate to be used as a dietary phosphorus resource.更多还原