Efecto de la suplementación de probióticos naturales y comerciales sobre el rendimiento productivo de cuyes en crecimiento

Abstract

The effect of supplementation of natural and commercial probiotics on the productive performance of growing guinea pigs was evaluated. 48-weaned male guinea pigs from the Peru breed were used. Weight gain, feed consumption, feed conversion,and carcass yield were determined. A completely randomized design with four treatments, six repetitions per treatment and two animals per repetition was used. The treatments were T1: Control Diet (CD); T2: CD + Natural Probiotic (NP) (2 ml); T3: CD + Commercial Probiotic(CP) (2 ml) and T4: CD + NP (1 ml) + CP (1 ml). The NP contained: Bacillus pumilus,Lactobacillusfrumenti, Streptococcus thoraltensis, Lactobacillus johnsoni, and the CP: Lactobacilus rihamnosusand Enterococci faecium. Nosignificant differences (p > 0,05) were found in the determined parameters; however, there were trendstowardhigher feed intakeand higherweight gain in guinea pigs of T3, better feed conversion in T4,and the highest carcass performance (p < 0,05) was presented in T2. The supplementation with CP tends to improve the productive performance of growing guinea pigs, with the exception of the carcass performance that improves with the supplementation of the NP.These results will serve as the basis for the use of probiotics in commercial guinea pig farms.