Niveles de testosterona total en cuyes (Cavia porcellus) extirpados las espículas peneanas, castrados químicamente y enteros y relación con tamaño testicular y vesícula seminal

The research was carried out in the Irquis Farm of the University of Cuenca located in the province of Azuay altiplano south of Ecuador. We studied the blood levels of total testosterone in Guinea pigs (Cavia porcellus) removed the spicules penile, castrated chemically and whole and its relationship with testicular size and seminal vesicle. Three treatments were formed T1 chemically castrated animals with 0.5 ml. 2% iodized alcohol injected directly into each testicle, T2 animals removed the spiculess of the glans and T3 as a control group, with a total of 12 animals 30 days old at the beginning of The stage of breeding and/or fattening. The animals were randomly divided into three groups of 4 individuals and were submitted to the same environment and breeding routine consisting of 70% forage based on ray grass - clover and 30% commercial balanced and water at will until the age of sacrifice at 93 days. The results were analyzed using the statistical package IBM® SPSS® Statistics version 23; were expressed as means and standard error, for comparisons between groups the data was analyzed using Shapiro-Wilk and a one-way analysis of variance (ANOVA) followed by Tukey's multiple comparison test (P <0.05). It was found that the excision of the spicules significantly decreased (P<0.05) levels of total blood testosterone at levels similar to that of castrated animals causing a lower development of seminal vesicles and without influence on development testicular.