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Pastos y Forrajes

versión impresa ISSN 0864-0394versión On-line ISSN 2078-8452

Resumen

MONTEJO-SIERRA, Iván Lenin et al. Effect of non-conventional diets with native microorganisms on pig rearing. Pastos y Forrajes [online]. 2017, vol.40, n.4, pp.308-314. ISSN 0864-0394.

A total of 134 animals of the pig categories piglets, pre-fattening, initial fattening and finishing, were used, distributed in a completely randomized design, in order to evaluate the effect of non-conventional diets with microorganisms on the live weight gain, under production conditions. The treatments were: I: with native microorganisms, and II: control. The animals received the same feeding in the two treatments based on a broth elaborated with cattle slaughter residues, besides bran, which was supplied in two parts: in the morning and in the afternoon, plus the dose of microorganisms. The difference among the live weight ranges on each sampling date was compared through a non-parametric test for independent means (Mann-Whitney U test). The same was done for the mean daily gain in each experimental group and animal category. The live weight gains were 92 vs. 62; 319 vs. 216; 769 vs. 496 and 534 vs. 454 g animal-1 day-1 for the categories piglet, pre-fattening, initial fattening and finishing, in treatments I and II, respectively. According to the results, it is concluded that native microorganisms in the non-conventional feedstuff that was used allowed an increase of the mean daily gain and of the live weight in the animals of all categories, the decrease of the fattening period and an increase of the economic incomes for the enterprise of $ 11 307,16 CUP.

Palabras clave : feed additives; pig; weight gain.

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