n= 50 per sex at MPF health standard from US production colonies. Data collected 2012.
High and Low represent mean +/- 2 standard deviation. (For 3 week old rats the low is only -1 SD.)
Based on sample size the charts above represents ~70% of the population.
All growth curves represent animals housed in our barriers, at our standard density and fed NIH31-M diet. Variations at customer facilities will alter expected growth curves.
Growth charts are provided only as a guide, if a specific weight criteria is needed please order animals by weight.
Customize this chart by clicking the legend elements, then explore download options by hovering your cursor over the down arrow to the right of the chart title.