The relationship between observed metabolizable energy (ME) and ME predicted from using the equation (ME = 0.9611 × DE −0.2999) reported by Galyean et al. (2016) for diets based on forage (red triangles) or concentrate grain (black circles), r2 = 0.9766. Data means are from the data used to generate equation 1. 25 июн. 2019 г.
How do you calculate metabolizable energy in a feed?
At times, meals of exceptionally poor quality will have appreciable amounts of foreign material. The ME of SBM can be estimated from this equation: ME (kcal/kg) = 2778 - 66 (% crude fiber), assuming a dry matter content of 88%.
How do you calculate energy in animal feeds?
Formula for GE calculations, GE for animal feed, GE = 5.7× g protein +9.4× g fat +4.1× (g NFE + g fiber), The calculation for nitrogen free extract is: % NFE = 100 % – (% EE + % CP + % Ash + % CF).
How do you get metabolizable energy?
To obtain the metabolizable energy of a given amount of a certain macronutrient, the ME value obtained with equation [1] or [2] must be multiplied by the corresponding G value, with G being the mass of the respective macronutrient expressed in grams.
How do you calculate the gross energy of a feed?
The NRC equations for dogs first calculate gross energy (GE) using the equation GE = 5.7× g protein +9.4× g fat +4.1× (g NFE + g fiber). Energy digestibility coefficients are then calculated for dogs as (91.2–1.43× percentage crude fiber in DM).
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How do you calculate the energy of a feed?How do you calculate metabolizable energy?
