Complex sentence: The most important vector is "Culex tritaeniorhynchus", which feeds on cattle in preference to humans, it has been proposed that moving swine away from human habitation can divert the mosquito away from humans and swine.
Split into simpler sentences: The most important vector is "Culex tritaeniorhynchus", which feeds on cattle in preference to humans. It has been proposed that moving swine away from human habitation can divert the mosquito away from humans and swine.