The purpose of this study was to analyze the needs of the Embryology and Animal Reproduction textbook integrated with the results of research on developing mouse embryos with the support of DEET (Diethyltoluamide). This research is research Descriptive quantitative with a gradual revision defines the Thiagarajan development model. Data collection techniques are done by distributing questionnaires, observations, and interview. The results showed 80% of abstract animal embryology and reproduction materials, 80% of teaching materials were less attractive, 85% were difficult to understand, 80% of images were minimal and 85% were teratologies in developing difficult animals. Analysis of the need for textbooks shows that there is no embryology a...