Contraceptive/Sterilisation Programme

In order to control the population growth of wild monkeys, a large-scale contraceptive/sterilisation programme has been launched by AFCD since 2007. The contractor staff first catch monkeys by using a giant trapping cage, and then veterinarians anesthetise and examine them. Monkeys deemed suitable for sterilisation will undergo endoscopic surgeries to remove part of the fallopian tubes or vas deferens. All captured monkeys are released back into the wild on the same day.

 

According to the population survey in recent years, the overall birth rate of local monkeys has dropped significantly, from about 60% in 2009 to around 30% in recent years. The total population has remained stable at approximately 2,000 to 2,100 individuals. This demonstrates that the contraceptive/sterilisation programme is effective in controlling monkey numbers.

 

Giant trapping cage	Veterinarians examine the monkeys