Digestive anatomy of various species and the classes of nutrients including their digestion, metabolism and sources. Nutrient requirements and feeding standards for livestock, companion animals, exotics and aquatics for purposes of reproduction, lactation, growth, work and maintenance. Classes of feedstuffs, their characteristics, proper utilization, formulating rations and nutritional programs for animal enterprise. Taught concurrently with SAAS 113. SM-9/17/12. Enrollment Requirements: Not open for credit to students who have passed ANSC 2111 or 4311.