周 龄      温度（白天）    温度 (晚上)     相对湿度（%）
                  1-2            32-28                  34-30                 65-60
                  3-4            28-26                  30-28                 65-55
                  5-6            26-23                  28-25                   55
                  7-8            23-20                  25-22                   55
               8周龄以上          20                     22                     55