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. 2015 Sep 2;1(3):128–134. doi: 10.1016/j.aninu.2015.08.015

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© 2015 Chinese Association of Animal Science and Veterinary Medicine. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.

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Fig. 2 — CO₂ (y) and O₂ (x) production (L/d). The regression line (y = 0.93x, R² = 0.92) results from mixed model analysis. CO₂ observations are ”adjusted” for the experiment effect, defined as: y_adjusted = y_predicted + residuals, where y_predicted are the y values predicted by the regression line, and the residuals are those from the mixed effects model.