Efecto de la suplementación de Zinc y Selenio sobre la aptitud reproductiva y calidad seminal en cerdos reproductores.

This thesis aimed to evaluate the effect of zinc and selenium supplementation on reproductive aptitude and semen quality in boar studs. These trace elements are essential for various physiological functions, including spermatogenesis, hormone synthesis, and protection against oxidative stress, all of which directly impact fertility. Clinically healthy boars were selected and divided into experimental groups receiving different combinations and concentrations of zinc and selenium over a defined period. Semen parameters such as volume, sperm concentration, motility, morphology, and viability were periodically assessed, along with observations of reproductive behavior. The results showed a significant improvement in semen quality and overall reproductive aptitude in the treated animals compared to the control group. Notably, there was an increase in sperm motility and the proportion of morphologically normal sperm, as well as greater consistency in semen production. These findings suggest that zinc and selenium supplementation can be an effective strategy to enhance reproductive performance in boars, contributing to the overall productivity of swine operations. In the correlation between scrotal circumference and sperm concentration (cell/ml), it was shown that the larger the scrotal circumference (cm), the lower the sperm concentration. In the macroscopic examination, the following were evaluated: volume (ml), color and pH. The greatest volume was presented by the Landrace and Yorkshire breed pigs and the lowest was for Pietrain and Duroc. The pH was 7 for Landrace, Yorkshire, Duroc and the Pietrain was 6.8. The Creamy White color was similar between the breeders. These findings indicate that zinc and selenium supplementation may be an effective strategy to improve reproductive performance in male pigs, thus contributing to the productive efficiency of pig farms.It is recommended to conduct further long-term studies to optimize the dosage, administration methods, and forms of these minerals. This research opens the door to new opportunities in animal nutrition, reproductive health, and the improvement of reproductive quality in commercially important species.

• Հիմնական հեղինակ: Vargas Santillán, Stalyn Geovanny (author)
• Ձևաչափ: bachelorThesis
• Հրապարակվել է: 2025
• Խորագրեր: Zinc; Selenio; Cerdos; Reproducción; Calidad seminal
• Առցանց հասանելիություն: http://dspace.utb.edu.ec/handle/49000/18359