Download or read book Test No. 421: Reproduction/Developmental Toxicity Screening Test written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test substance is administered in graduated doses to several groups of males and females. Males should be dosed for a minimum of four weeks. Females should be dosed throughout the study, so approximately 54 days. This Test Guideline is designed ...