Abstract

OJEDA-GARCIA, Félix; BLANCO-BETANCOURT, Dayrom; CEPERO-CASAS, Luis  and  ROSALES-IZQUIERDO, Maribel. Effect of the inclusion of a biopreparation of efficient microorganisms (IHplus®) in diets of fattening pigs. Pastos y Forrajes [online]. 2016, vol.39, n.2, pp.119-124. ISSN 0864-0394.

A study was conducted under production conditions in order to determine the effect of a biopreparation of efficient microorganisms (IHplus®) on the live weight (LW), mean daily gain (MDG) and feed conversion (FC), in fattening crossbred pigs. To establish the optimum quantity of inclusion of the biopreparation, three doses were evaluated: 40, 80 and 120 mL/pig/day, through a completely randomized design. The diets were uniform and included concentrate feed B, Nuprovim, enriched cassava silage, molasses B and ground rice hulls. A total of 144 animals were used with an average initial LW of 27,0 ± 0,5 kg and 76 days of age, at a rate of 36 pigs per treatment, and the experimental period was 132 days. The pigs that did not consume IHplus® showed the worst productive indicators (90,4 ± 1,6 kg; 0,478 ± 0,011 kg and 4,06 ± 0,01 kg for LW, MDG and FC, respectively), while the 40-mL dose contributed the best results (98,3 kg; 0,583 kg and 3,64 kg), with an increase of 15,4 % in the gain. It is concluded that the inclusion of IHplus® promotes a higher income, and although the zootechnical indicators are far from the ones considered optimal, the fact that they are achieved with the feedstuffs available in the country allows to suggest that this biopreparation is included to evaluate its efficiency in pig fattening. It is recommended as optimum dose that of 40 mL/pig/day of IHplus®, as well as the diffusion of its use in this pig category.

Keywords : Animal feeding; gains; body weight.

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