The studies of microbial diversity on rumen in beef cattle. bovine gut metagenome

Environmental pollution and shortage of protein feed is the main factor that restricts the sustainable development of animal husbandry in our country, improve the utilization rate of feed is an important means of saving feed resources to reduce waste emissions. The purpose of this study was to study the effects of dietary supplementing with active dry yeast (ADY) on growth performance, apparent digestibility of nutrients, serum biochemical indicators, slaughter performance and rumen microflora in beef cattle, investigating the difference in production performance between ADY supplemented with low nutrient levels and beef fed high-nutrient diets, which provided theoretical basis for production practice of active dry yeast.In this study, the effects of yeast and high nutrition diet on rumen microbial flora were determined.