Complex sentence: There are EU regulations about what free-range means for laying hens and broilers (meat chickens) as indicated above, but there are no EU regulations for free-range pork and so pigs could be indoors for some of their lives.
Split into simpler sentences: There are EU regulations about what free-range means for laying hens and broilers (meat chickens) as indicated above. However, there are no EU regulations for free-range pork, so pigs could be indoors for some of their lives.