Therefore based on data herein presented it seems to be that choline was effective just during
the first period of the experiment. These findings suggest that choline supplement may enhance
growth performance of finishing cattle, even thought the mechanism by which choline induces this
effect is unknown. A possible explanation can be the fact that the animal used in the experiment
were in a adaptation/receiving period. Several studies conducted in beef cattle during this phase,
have reported a positive effect of vitamin and nutrients blends supplementation on growth performanceSgoifo Rossi et al., 2005). The lack of response to choline in the last part of the experiment,can be attributed to the dose. In fact, comparison between day 0 and day 122 the animalwere receiving about 30% less of choline per kg of body weight. In conclusion ruminally protected
choline can improve growth performance of newly received beef cattle, and its inclusion in receiving
diet can be useful.