Resumo

RODRIGUEZ-AGUILAR, D; ARIZA-NIETO, C. J  e  AFANADOR-TELLEZ, G. POTENCIAL DEL ALMIDÓN RESISTENTE RETROGRADADO DE PAPA FRENTE A OTROS ADITIVOS FUNCIONALES USADOS EN POLLOS DE ENGORDE. Rev. Med. Vet. Zoot. [online]. 2014, vol.61, n.1, pp.44-63. ISSN 0120-2952.  https://doi.org/10.15446/rfmvz.v61n1.43883.

The retrograded resistant starch (RS3) of potato varieties: Pastusa (Solanum tuberosum tuberosum group) and Guaneña (Solanum tuberosum phureja group) was evaluated as an additive in the diet of broilers for its functional characteristics similar to dietary fiber and as a potential prebiotic. A total of 792 one-day-old Ross male broilers were randomly allotted to one of the five treatment groups: Pastusa (AR3P, 1%), Guaneña (AR3G, 1%), mannan-oligosaccharides (MOS, 0.5%), carboxymethylcellulose (CMC, 1%), commercial yeast, 0.5%, and control without supplementation. Data were analyzed under a completely randomized design using the GLM procedure of SAS. MOS and AR3P showed the greatest body weight and body weight gain at day 42 of age (P < 0.05). MOS had the lowest feed intake compared with CMC (P < 0.05) and feed conversion compared to CMC and control group without supplementation (P < 0.05). AR3P and AR3G showed an intermediate performance for feed conversion. The highest percentage of American efficiency and productivity index were for MOS and AR3P when compared to the control group (P < 0.05). MOS showed the highest partial net income when compared to AR3G. The results suggest that the AR3P shows a potential as a functional additive for broilers during a commercial production cycle.

Palavras-chave : Resistant starch; dietary fiber; Solanum tuberosum; S. phureja.

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