A system for predicting energy and protein requirements of wild ruminants - Hackmann - 2010 - Zoo Biology - Wiley Online Library

A system for predicting energy and protein requirements of wild ruminants - Hackmann - 2010 - Zoo Biology - Wiley Online Library: "Wild ruminants require energy and protein for the normal function. I developed a system for predicting these energy and protein requirements across ruminant species and life stages. This system defines requirements on the basis of net energy (NE), net protein (NP), and ruminally degraded protein (RDP). Total NE and NP requirements are calculated as the sum of NE and NP required for several functions (maintenance, activity, thermoregulation, gain, lactation, and gestation). To estimate the requirements for each function, I collected data predominantly for wild species and then formulated allometric and other equations that predict requirements across species."