Mario Binelli is an associate professor at the department of Animal Sciences at the University of Florida. He is an expert in reproductive physiology of beef cattle. The focus of his career is to understand and manipulate the endocrine, cellular and molecular processes controlling reproductive tract function in female cattle. The applied focus is to minimize the proportion of females that do not generate an offspring each year. His current research priorities are on the areas of delayed puberty attainment of heifers and poor endometrial receptivity of cows. His current extension focus is on the education of beef cattle producers on the implementation of reproductive technologies in cow-calf operations, with an emphasis on the yearling heifer. The guiding principle of his research and extension activities is that increased efficiency in cow-calf operations will benefit the producer, the environment and society as a whole.