The Quebec government said yesterday that it would limit hog production to protect the environment in the province, which is one of the world’s largest producers of pork. Hog production will be capped in 165 rural towns throughout Quebec — an area four times the size of France. The government said it would also clamp down on hog waste entering rivers. The hog industry surged in Quebec in the 1990s, with huge hog production facilities replacing smaller operations. Angry about all the pollution from the facilities, citizens have been calling for tougher regulations for years.