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The Influence of Monensin, Probiotic (Saccharomyces cerevisae) and Organic Mineral Complement (Chrome) on the Feedlot Steers Diet



It was compared the effect of sodic monensin, Direct-Fed Microbials (Saccharomyces cerevisae) and chrome organic mineral complement added separately to a ration made of residues of a maize and soybean first cleaning, plus urea and limestone and silage of maize, on the feeding of 32 growing steers in feed lot. The initial average weight was 299 kg (61 kg) and the feedlot lasted for 100 days, being 16-day-adaptation period (was applied) and the remaining 84 days were divided in three periods of 28 days. The steers were weighed after a previous fasting of 16 hours. The experiment was analyzed as randomized blocks design with four treatments and eight animals per treatment. It was observed no significant difference (P > 0.05) among the groups concerning the average daily gain and feed conversion. For the dry matter intake it was observed significant difference (P < 0.05) between the sodic monensin and the chrome organic mineral complement. It was concluded that the adding of sodic monensin, DFM and the chrome organic mineral complement did not alter the performance of the steers under the present conditions.


aditivo; conversão alimentar; ganho de peso; ionóforo; milho