COPENHAGEN, Denmark (AP) — The number of wild boars in Denmark has fallen since a 70-kilometer (43.4-mile) fence was erected along the German border to protect the valuable Danish pork industry.

The fence was put up last year in an attempt to prevent wild swine crossing from Germany and breeding with farm pigs or possibly bringing in disease. There were concerns the barrier would not work because the fence had gaps where it crossed roads and rivers.

Since then, the number of wild pigs in Denmark has fallen from 35-40 to fewer than 25, even though some piglets have been born in recent months, o...