Resumo

POVEDA PARRA, A.R. et al. Mixed spray-dry yeast (brewer + sugar cane) on starting pigs feeding. Arch. zootec. [online]. 2013, vol.62, n.238, pp.199-209. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922013000200005.

Three experiments were carried out to determine the nutritional values of the spray-dry yeast sugar cane (LEV35) and mixed (brewer + sugar cane - LEV40) and the inclusion effect on starting pigs diets on performance and economic feasibility. In total digestibility assays were used fifteen barrow pigs with initial body weight of 21.49 ± 4.85 kg were allotted in a completely randomized design. The values of digestible and metabolizable energy as-fed basis for LEV35 and LEV40 were: 2788 and 3455 (kcal/kg); 2761 and 3289 (kcal/kg), respectively. In performance trial were evaluated five inclusions levels of LEV40 (0, 5, 10, 15 and 20 %) utilizing 50 piglets, with initial weight of 14.60 ± 1.28 kg in meal form, distributed in a completely randomized bloc design. In second performance trial were evaluated five inclusions levels of previous assay in meal form or pellet form, using 80 piglets, with initial weight of 15.16 ± 2.00 kg, allotted in a completely randomized factorial 5 x 2. The results indicate that the inclusion of up to 20 % of LEV40 in diets for piglets in the two forms did not affect performance. However, the economic feasibility will depend on the price relationship between the ingredients.

Palavras-chave : Co-product; Nutritional value; Protein feedstuffs.

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