SD Rats vs Wistar Rats: Key Differences Every Researcher Should Know
SD (Sprague Dawley) and Wistar rats are popular outbred albino strains. SD rats, developed from Wistar in the 1920s, are larger, faster-growing, docile, and preferred for toxicology, drug safety, and pharmacology. Wistar rats are active, exploratory, and better suited for behavioral, neurological, and cardiovascular research. Choose based on study objectives.
