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The following HTML text is provided to enhance online readability. Many aspects of typography translate only awkwardly to HTML. Please use the page image as the authoritative form to ensure accuracy. FEBCj is the amount of bacterial carbohydrate in feces from the jth feedstuff, g/day; FEBFj is the amount of bacterial fat in feces from the jth feedstuff, g/day; FEBASHj is the amount of bacterial ash in feces from the jth feedstuff, g/day, and FEBACTj is the amount of bacteria in feces from the jth feedstuff, g/day. Endogenous protein, carbohydrate and ash are: 
where DMI is feed DM consumed, g/day; FEENGPj is the amount of endogenous protein in feces from the jth feedstuff, g/day; FEENGFj is the amount of endogenous fat in feces from the jth feedstuff, g/day; FEENGAj is the amount of endogenous ash in feces from the jth feedstuff, g/day, and IDMj is the indigestible dry matter, g/day. Total fecal DM is calculated by summing protein, carbohydrate, fat and ash DM contributions from undigested feed residues, microbial matter, and endogenous matter: 
where FEPROTj is the amount of fecal protein from the jth feedstuff, g/day; FECHOj is the amount of carbohydrate in feces from the jth feedstuff, g/day; FEFATj is the amount of fat in feces from the jth feedstuff, g/day; FEASHj is the amount of ash in feces from the jth feedstuff, g/day, and FEDMj is the amount of fecal DM from the jth feedstuff, g/day. Total Digestible Nutrients and Energy Values of FeedstuffsApparent TDN is potentially digestible nutrient intake minus indigestible bacterial and feed components appearing in the feces: 
where TDNAPPj is apparent TDN from the jth feedstuff, g/day. The ME values for each feed are based on assuming 1 kg of TDN is equal to 4.409 Mcal of DE and 1 Mcal of DE is equal to 0.82 Mcal of ME (NRC, 1976): 
where MEaj is metabolizable energy available from the jth feedstuff, Mcal/day; MECj is metabolizable energy concentration of the jth feedstuff, Mcal/kg; MEI is metabolizable energy supplied by the diet, Mcal/day, and MEC is metabolizable energy concentration of the diet, Mcal/kg. CALCULATION OF NET ENERGY VALUES
where NEgaj is net energy for gain content of the jth feedstuff, Mcal/kg; NEmaj is net energy for maintenance content of the jth feedstuff, Mcal/kg; METABOLIZABLE PROTEINTotal feed MP is the sum of each feed MP: 
where MPaj is metabolizable protein from the jth feedstuff, g/day, and MPa is metabolizable protein available in the diet, g/day.
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