Average daily feed intake (ADFI in grams of dry matter/day), average daily weight
gain (ADG in g/day) and gain to feed ratio (G:F in grams of gain/g of feed) were
analysed using a linear-mixed model (MIXED procedure, SAS 9.2 Software, SAS Institute) that included the fixed effects of Ta (TN or HT), period (P1 or P2), replicate
and their interactions, and period was specified as a repeated effect.