LFECLow Frequency Eddy Current
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In regards to the levels of crude protein in the stomach (ANOVA, [F.sub.2,15] = 51.678, p = 0.0001) and intestine (aNovA, [F.sub.2,15] = 375.44, p = 0.000001), observed mean values were lower at RPar in relation to LFec (Tukey, p < 0.001) and RIvi (Tukey, p < 0.001); however, there was no difference between values in the stomach (Tukey, p = 0.163479) and intestine (Tukey, p = 0.3293) at LFec and RIvi.
For dry matter level in the stomach, differences were observed (ANOVA, [F.sub.2,15] = 6.9641, p = 0.00726) with lower values at RPar than at LFec (Tukey, p < 0.05) and RIvi (Tukey, p < 0.05) (Table 4).
borellii (ANOVA, [F.sub.2,15] = 55.040, p < 0.01) were different in all subsystems with higher values at RPar than at LFec (Tukey, p < 0.01) and RIvi (Tukey, p < 0.01), whereas the values observed at RIvi were lower (Tukey, p < 0.01) than those for LFec.
borellii (ANOVA, [F.sub.2,15] = 7.7988, p < 0.01) was greater at LFec than at RIvi (Tukey, p < 0.01); however, both environments had values that did not differ from those obtained at RPar (Tukey, p = 0.313759 and p = 0.071818, respectively).
borellii (ANOVA, [F.sub.2,15] = 17.501, p > 0.001) at LFec was higher than at RIvi and RPar (Tukey, p = 0.0116 and p < 0.001, respectively).
It is important to emphasize that the energy and protein digestibility of gramineae (RIvi) was lower than that of macrophytes (LFec), which indicates higher availability of these nutrients in macrophytes.
The LFEC Type 1 and 2 are novel system concepts developed by this paper's authors.
The remaining components in the LFEC system model include hot and cold side heat exchangers, a regenerator, hot and cold side mixers, hot and cold side separators, a hydraulic motor, and a pump.