According to densitometric analysis, the average detoxifying efficiency of CMNT was 96.
The ricin intake of animals fed with 100% CMNT (1,187.
39% was confirmed in DM intake (DMI, in g/d) from animals fed the CMT diet compared to those fed the CMNT diet.
The measurements of carcass characteristics and basic cut yields with the substitution of SM with CMT and alkaline treatment of CMNT are presented in Table 5.
05) for the levels of substitution of SM by CMT and alkaline treatment of CMNT on carcass basic cuts.
The diet with 100% CMNT had the lowest cost compared to the cost/ton of SM, followed by the diet with 100% CMT.
The non-interference of ricin intake on the remaining diet components is possibly explained by the low CMNT level in the diet (9.
The greatest intake, numerically presented, of animals that received 100% CMT compared to CMNT can be explained by a reduction in ricin levels and an increase in the ruminal degradation rate (kd) of the potentially degradable fraction of the NDF (NDFap) of castor meal with alkaline treatment.
According to Oliveira (2008), CMNT presents a high indigestible fraction of NDF (average of 66% of NDF) due to the high cutin content and treatment of CM with lime had no effect on the non-degradable fraction of NDF, but increased the ruminal degradation rate (kd) of the NDFap by an average of 7%.
With regard to the substitution of CMT with CMNT, no situation was shown to be advantageous, as the carcass yield was numerically lower than for the other diets.