Shredded pork trotters in Changchun is one of the special snacks in Jilin. It's made of pig's trotters, with fine cooking and delicious taste. Here are some shops that may be worth recommending:

1. Old Captain's Restaurant in Nanguan District, Changchun City: This restaurant is located in Nanguan District, Changchun City. It is a restaurant mainly serving northeast cuisine, among which shredded pork with hoofed flowers in Changchun is one of its special cuisines.

2. Xixiangfeng Hotel, Chaoyang District, Changchun City: This restaurant is located in Chaoyang District, Changchun City. It is a Chinese restaurant, and Changchun hoofed silk is one of its signature dishes.

3. Yanminglou Hotel in Lvyuan District, Changchun City: This restaurant is located in Lvyuan District, Changchun City. It is a restaurant with northeast cuisine as the main food, among which Changchun hoofed silk is one of its special dishes.

4. Tian Tian Fishing Port, Kuancheng District, Changchun City: This restaurant is located in Kuancheng District, Changchun City. It is a seafood-oriented restaurant, among which Changchun shredded hoof is one of its special cuisines.

To sum up, there are many restaurants in Changchun that offer shredded Changchun hoof, which can be selected according to personal taste and consumption power.