▎ 摘　　要

NOVELTY - System for preventing and repelling mosquito and insect based on biological control of livestock comprises leg bundling cylinder (2) which is connected to bottom of dog robe through zipper; backrest mosquito repelling surface layer is movably connected to top of dog robe by zipper; abdomen anti-mosquito surface layer is movably connected to bottom of dog robe through zipper; mouth protective cover is movably connected to dog robe through slide fastener. USE - System for preventing and repelling mosquito and insect based on biological control of livestock. ADVANTAGE - The system is specially processed and prepared with special material with insect repellent and mosquito repellent effect; and emit mosquito repellent and insect repellent gas, to effectively protect livestock from mosquitoes. DESCRIPTION OF DRAWING(S) - The drawing shows a structural schematic view of leg bundling cylinder. 2Leg bundling cylinder 21Elastic leg sleeve ring 22Flexible rib 23Leg sleeve