Luo Zhenhui, deputy director of the municipal public security bureau,said Tuesday that the bureau will see to the enforcement of the regulation.

According to the regulation, a dog owner could be fined 2,000 yuan for having more than one dog.

"We encourage residents to send their dogs to the bureau if they want to dispose of them. Police will also seize dogs illegally kept based on public reports," said a police officer who declined to give his name.

The city is gearing up for the Asian Games next year. It is widely believed that the one-dog policy, which has caused public discontent since the draft was announced in March, is meant to reduce the city's dog population.

"If each family can only keep one dog, I'm sure that stray dogs will increase. How would the authorities deal with those stray dogs? why don't you let me keep them and take care of them?" said a woman surnamed Ye, who has raised two dogs for eight years.

Many non-dog keepers also consider the one-dog rule a little harsh.

"No matter how many dogs one keeps, the most important thing is the owner has the awareness to raise the dogs in a proper way and avoid bringing trouble to others," said a resident in Huangpu District.

According to the regulation, the city's dog registration fee will fall sharply from 10,000 yuan to 500 yuan.

The police chief Luo said that the change is aimed to encourage legal keeping of dogs.

The bureau estimated that the number of unregistered dogs in Guangzhou has reached 100,000, which is in contrast to only 800 registered.

"The high fee for dog registration required by the current regulation in effect since 1997 has not been effective in restricting the dog population in the city," said Chen Xiaoqing, director of the commission for legislative affairs of the municipal legislature.

Illegal dog keeping has been blamed for causing dog diseases such as rabies, which broke out in several Chinese cities this year.

"The new dog registration fee is more reasonable and acceptable, so that there won't be so many people who evade dog registration," said a dog owner surnamed Lian.