Effect of adding compound broad-spectrum antibiotics in drinking water on the ileal microbiota of broilers in two-layer cages and ground litter broilers

We added compound broad-spectrum antibiotics to the drinking water of broilers in two-layer cages and litter floors. To compare the differences of the ileal microorganisms of the two rearing systems in broilers. At the same time, explore the effect of compound broad-spectrum antibiotics on the ileal microorganisms of two rearing systems in broilers.