Ingredients to make a dog birthday cake. A pet shop in Changchun, Northeast China's Jilin province, recently unveiled a pet birthday cake for pet lovers and received a good response.[Photo/CFP]

China is already home to one of the world's largest pet populations. The number of pets in China has increased nearly 900 percent since 2003, to 120 million within a decade. The pet market has maintained an annual growth rate of 30 percent, and has huge potential in China.