Abstract

PERALTA, J.; AQUINO, L. F.; ALVAREZ, R.  and  VALIENTE, O. L.. Substitution of protein ingredients and their effect on productive parameters in Bulls of Paraguay. Rev. vet. [online]. 2022, vol.33, n.2, pp.253-257. ISSN 1669-6840.  http://dx.doi.org/10.30972/vet.3326192.

In order to determine the effect of substituting protein ingredients on production parameters (daily weight gain, feed intake and feed conversion) in confined bulls, bovine animals were selected, grouped into 2 lots in a random and homogeneous manner, composed of nelore-type bulls between 1 and 3 years of age: Treatment 1 (T1) 51 bulls with feed based on corn mockery and Treatment 2 (T2) 51 bulls with feed based on soybean expeller. The initial weighing was carried out at the entrance of the animals, after which two weighings were carried out, one at 45 days and the other at 90 days. At the end of the period, the weights of each group were compared. The results obtained based on the daily weight gain were subjected to the T-Student statistical method, observing significant differences (p<0.05), in favor of T2 in relation to T1. Daily weight gain was 1.47 kg/day at T1, 1.52 kg/day at T2, with daily consumption at T1 being 16.8 kg and 17.4 kg at T2, in terms of feed conversion at T1 it was 6.75 kg and at T2 it was 6.82 kg.

Keywords : productive parameters; weight gain; feed conversion; daily consumption.

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