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. 2022 Feb 11;13:21. doi: 10.1186/s40104-021-00671-2

Table 2.

Regression equations established between gas production (x, mL) and ammonia-N concentration (y, mg) after 16 h of in vitro incubation of substrates and increasing amounts of starch

Regression equation Adjusted R2 RMSEa
Soybean meal y = 61.7–0.210 x 0.893 1.517
Tenebrio molitor y = 35.7–0.136 x 0.927 1.105
Zophobas morio y = 38.6–0.134 x 0.933 0.994
Alphitobius diaperinus y = 51.7–0.092 x 0.768 1.747
Acheta domesticus y = 55.7–0.133 x 0.905 1.449

aRoot mean square error