Proportion standard of nitrogen and phosphorus in feed

8: 1。 According to the information inquired by Mu Tong Talent Network, the optimum nitrogen-sulfur ratio of urea-containing diet is 10 ~ 14: 1, and the optimum nitrogen-phosphorus ratio is 8: 1. In addition, it is necessary to ensure the supply of calcium, phosphorus, magnesium, iron, copper, zinc, manganese and iodine necessary for bacterial life activities, which is conducive to improving the utilization rate of urea.