Using the fоllоwing chаrt cаlculаte the MER/DER fоr the following patient. If the correct life stage factor has a range then any number within the high and low end will give you the correct answer. Nutritional assessment factors feline life stage factors canine life stage factors Neutered adult 1.2 - 1.4 1.4 - 1.6 Intact adult 1.4 - 1.6 1.6 - 1.8 Inactive/obese prone 1.0 1.0 - 1.2 Weight loss 0.8 1.0 Gestation 1.6 - 2.0 3.0 (for last 21 days) Lactation (based on number of offspring and weeks of lactation) 2.0 - 6.0 3.0 to ≥ 6.0 Growth 2.5