When will Bo au change hair?

Bolao started to calculate from the shell, and generally changed hair in about 40-50 days.In addition to changing hair when you grow up, you will change it once a year.In the process of changing feathers, you need to pay attention to keeping it into hygiene, and the hair must be cleaned in time.In addition, pay attention to the supplement of nutrition, which also helps the growth of new feathers.