Extirpación de las espículas del glande del cuy comparado con otros métodos de castración y su efecto en el rendimiento a la canal.

Abstract

The objective of this study was to compare the removal of the spicules of the glans of the guinea with other castration methods and its effect on the performance of the carcass. This study was carried out in the Minor Species Unit of the Faculty of Animal Sciences. Three castration methods were evaluated; T1: method of total crushing of the testicles, T2: chemical castration with 2% iodinated alcohol and T3: castration by removal of the spicules in guinea pigs of the growth-fattening stage to be compared with a control treatment (without castrating). 48 male guinea pigs of the Peruvian line of 15 days of age with an average weight of 376.10 g were used. A Completely Randomized Design (CRD) was applied, with 6 repetitions. The size of the experimental unit was 2 guinea pigs per pool. The experimental results of the productive behavior of guinea pigs determined significant differences (P <0.01) in the variable yield to the carcass in favor of the T3 treatment and in the variable forage consumption a significant difference was obtained (P <0.05) in the same way in favor of the T3 treatment. While for the variables: final weight, weight gain, concentrate consumption, total feed consumption, feed conversion and carcass weight, there were no significant differences (P> 0.05). The highest profitability was obtained with the T3 treatment, reaching a benefit / cost of 1.20, that is, for every dollar invested, a profit of 0.20 cents was obtained. Castration by removing spicules positively influenced the productive behavior of guinea pigs. Therefore, the use of deespiculation is recommended as an alternative method when castrating male guinea pigs at this stage.