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. 2021 Feb 4;11:612815. doi: 10.3389/fgene.2020.612815

TABLE 2.

Coefficients of determination and Bayesian information criterion values for the models assessing the impact of different heat load functions on the traits of interest.

Environmental measure Time period R2 BIC, model1 BIC, model2
Carcass average daily gain
THI 60–92, d 0.041 −241192.87 −241161.44
Temp 60–92, d 0.040 −241186.62 −241157.38
RH 60–92, d 0.041 −241672.4 −241649.27
THI 92–122, d 0.055 −241775.51 −241746
Temp 92–122, d 0.055 −242126.2 −242105.38
RH 92–122, d 0.048 −241340.31 −241352.62
THI 122–152, d 0.041 −242626.65 −242607.3
Temp 122–152, d 0.057 −242805.43 −242773.22
RH 122–152, d 0.041 241016.71 240975.52
Carcass backfat depth
THI 60–92, d 0.135 640065.622 N.C.
Temp 60–92, d 0.134 640037.831 N.C.
RH 60–92, d 0.139 639893.692 N.C.
THI 92–122, d 0.125 640068.172 N.C.
Temp 92–122, d 0.125 640140.87 N.C.
RH 92–122, d 0.144 639767.656 N.C.
THI 122–152, d 0.135 639935.033 N.C.
Temp 122–152, d 0.136 N.C. N.C.
RH 122–152, d 0.125 N.C. N.C.
Carcass loin depth
THI 60–92, d 0.014 N.C. N.C.
Temp 60–92, d 0.015 N.C. N.C.
RH 60–92, d 0.011 N.C. N.C.
THI 92–122, d 0.022 814767.925 N.C.
Temp 92–122, d 0.022 814781.392 N.C.
RH 92–122, d 0.017 814757.367 814776.72
THI 122–152, d 0.014 814725.541 N.C.
Temp 122–152, d 0.026 814701.658 N.C.
RH 122–152, d 0.011 814797.207 N.C.

BIC, Bayesian information criterion; Model 1 is the first-order Legendre polynomial random regression model; Model 2 is the second-order Legendre polynomial random regression model; Temp, daily average temperature (°C); RH, daily average relative humidity (%); THI, daily average values of temperature – humidity index (°C); N.C., not converged. The values in bold indicate the largest coefficient of determination or smallest Bayesian information criterion value obtained for each trait.