BIOPRODUCTIVE AND ECONOMIC EFFECT OF THE CHELATED MINERAL PREMIX GIVEN TO FATTENING STEERS
Keywords:
mineral premix with chelated bioelements, steers, body weight, feed conversion ratio, economic efficiencyAbstract
The experiment investigated the effect of the different dietary levels of the mineral
premix based on phosphate frittes with chelated bioelements on the weight gain,
feed conversion ratio, and economic efficiency of the Brown fattening steers. The
animals were assigned to 3 experimental groups: group 1 with 0.1%, group 2 with
0.5% and group 3 with 1% chelated mineral premix in the compound feed next to
the corn silage (basal diet). The ingested feeds were similar among the 3 groups,
both for the bulk feed (free access) and for the compound feed (CF) as such or as
dry matter. Group 1 had an intake of 9.43 kg, group 2 had 9.37 kg and group 3 had
9.42 kg/steer/day, which represents 6.65; 7.71 and 6.72 kg total DM/steer/day. The
similar feed intakes produced similar gains: 1348 g in group 1, 1368 g in group 2
and 1347 g /steer/day in group 3, the differences not being statistically significant (P
> 0.05). No significant differences were documented in the dry matter, energy and
protein intake for the retention of one kg body weight. The use of the dietary
chelated mineral premix in different proportions (0.1, 0.5 and 1%) given to fattening
steers was economically efficient only for the 0.1% rate of inclusion.
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