Efecto de la suplementación con levadura de cerveza (saccharomyces cerevisiae) y promotores en la gestación y recría de cuyes (cavia porcellus)

In Tumbaco, Pichincha, at 2460 meters above sea level, we assessed the effect of food supplementation with nutritional systems constituted by the combination of: brewer’s yeast (Saccharomyces cerevisiae), Indumix (mineral and vitamins mix) and A-V 25 (vitamin complex with an antibiotic) during the gestation and rearing stages of guinea pigs (Cavia porcellus). A completely randomized design was used, with eight treatments; 4 to 5 animals were used per treatment during the gestation stage, and 4 male and 4 female subjects were used per treatment for the rearing stage; these animals were selected randomly. The variables analyzed were: weight-gain, length increase, food conversion, concentrate consumption, fodder consumption, mortality, weight of newborns and financial analysis. There was no statistical significance during the gestation stage for weight-gain; during the rearing stage in male pups, the treatment with highest weight-gain and length increase was t7 (Control + brewer’s yeast + Indumix + A - V 25) with 821,00 g/guinea pig and 11,92 cm/guinea pig, respectively; for female pups, the best treatment was t7 (Control + brewer’s yeast + Indumix + A - V 25) with a weight-gain of 816,50g/guinea pig and length increase of 11,80 cm/guinea pig. The best Benefit/Cost ratio corresponded to t7 (Control + brewer’s yeast + Indumix + A -V 25) and t6 (Control + Indumix + A - V 25), with a B/C ratio of 1.13 USD.