The history of advancing basic research
Infertility has profound psychological and social effects on millions of people. Despite considerable research, there remain many unanswered questions as to the potential causes of infertility or impaired fecundity. What if the humble rat could help unlock the puzzle of infertility? The Sprague Dawley® rat is no ordinary model. These rats have proven to be extremely helpful in reproductive endocrinology research.
The first Sprague Dawley® rat colony began in 1925, when Robert Dawley developed a vigorous rat with a good temperament and high rates of lactation. These rats were eventually used to study contraceptives. In 1980, the original colony was acquired by Harlan (now Envigo). These albino rats are now used widely in medical and psychological research.+ Read more