The pace of human population growth coupled with economic and urban development has a considerable impact onlivestock production, particularly through the growing demand for animal-derived protein. The burgeoning demand forreasonably priced and high-quality meat, eggs and dairy products has created the incentive for the rapid intensificationand industrialization of animal production, thus representing economic, social and environmental implications of globaldimensions (Hursey, 1997). The purpose of this paper is to provide an overview of the challenges faced during animalproduction and how probiotic yeast supplementation to animal’s diet could prove beneficial in alleviating these problemsand bringing further improvement in growth and performance. The current knowledge on use of probiotic yeasts in animalfeeds is presented and areas for future research are proposed.