Inseminação artificial e inseminação artificial em tempo fixo em bovinos

The present review addresses historical aspects about artificial insemination (AI) as the beginning of a new era in reproductive biotechniques. In the course of this review, we attempted to report the evolution of AI in order to improve this reproductive management tool with the advent of timed artificial insemination (TAI). The advantages of the use of these biotechniques in the reproductive management of dairy and beef cattle, as well as some limitations, gains in milk and meat productivity, work optimization, genetic gains and the health contribution with respect to the prevention of reproductive disorders and those that interfere with reproduction. In view of the presented works, it is possible to conclude that both conventional AI and TAI are reproductive management tools that gain increasing space in cattle breeding because they provide viable economic gains besides making a great contribution to the organization and planning of the livestock activity.