Estudio del aparato reproductor del cuy macho (cavia porcellus)

There is little information on the conformation of male sexual organs and factors that may influence their development. The objective of the present study was to study the male reproductive system of guinea pigs, to verify the influence of diet and corticosteroids on the morphometric measures thereof. 3 experiments were carried out, in the first one morphometric measurements were taken of testicles, epididymis, vas deferens, seminal vesicles, penis, penile bone and guinea pig spicules (n=114) of 8, 10, and 12 weeks of age; in experiment two were evaluated with diets with 32% and 40% neutral detergent fiber (NDF); while in the experiment three morphometric measurements of the reproductive system were analyzed in guinea pigs treated with 0.3 mg/kg dexamethasone (n=10), 0.25 mg/kg flumethasone (n=10) and 0.125 mg/kg physiological solution (n=10). Descriptive statistics and analysis of ANOVA variance were performed. Experiment 1: age influenced the morphometric parameters of the reproductive system, absolute and relative measurements of testicle, tail of epididymis, duct deferent, seminal vesicles and penis were higher (p<0.05) for 10 and 12 weeks compared to 8 weeks. Experiment 2: no differences were found (p>0.05) in the measurements of the structures of the reproductive system of guinea pigs fed with different percentages of NDF. Experiment 3: No effect (p>0.05) of glucocorticoids on macroscopic measurements of male reproductive tract structures. In conclusion, the factors influencing the measures of the male reproductive system are age and weight, while NDF levels do not cause variability during the growth phase; Likewise, the use of corticosteroids in recommended doses does not affect the development of male organs. Keywords: guinea pig, age, testicle, NDF, glucocorticoid.

• Autor principal: Chuchuca Carrión, Carlos Andrés (author)
• Format: bachelorThesis
• Idioma: spa
• Publicat: 2023
• Matèries: COBAYOS; APARATO REPRODUCTOR; EDAD
• Accés en línia: https://dspace.unl.edu.ec/jspui/handle/123456789/26709