In many markets, chickens will be sold at the school gate for one yuan, and some will be dyed in colorful colors to attract children's eyes. These are generally cockerel seedlings eliminated from farms, which have great security risks.

Most of the colored chickens sold on the street are newly hatched rooster seedlings, which are artificially sprayed with colored dyes to increase their attractiveness. This kind of colorful chicken is mainly sold to children to play with, and it will die after a few days. For large-scale aquaculture, the value and treatment of newly hatched hen seedlings and rooster seedlings are very different. If hen seedlings can be sold to 3 yuan for more than one, rooster seedlings will cost only a few cents, which is an auxiliary product. There are many epidemic prevention procedures for chicks that normally enter the farm, and they need to do epidemic prevention for more than ten times before they grow up and lay eggs. And those rooster seedlings that are abandoned by farms and circulated to the streets as pets will hardly do epidemic prevention.