EVALUACIÓN DE TRES DILUYENTES COMERCIALES PARA LA CONSERVACIÓN DE SEMEN PORCINO.

Abstract

Pork production in Ecuador is considered as one of the activities developed with the purpose of generating the economic sustenance of various producers dedicated to this activity. The research was carried out on the premises of the Swine Production Laboratory of the Faculty of Zootechnical Sciences with the objective of determining the conservation capacity of pig semen from four breeds of pigs by using three commercial extenders. For this, ejaculates from pigs of the Landrace, Pietrain, Duroc and Belgian breeds were used, which were placed in three types of extenders Kubus, Minitube and Vim. A preparation of the extenders was carried out with deionized water to subsequently dilute the semen. Sperm survival was evaluated during 6, 9 and 12 days of storage at a temperature of 16°C. Macroscopic characteristics such as volume, color, odor and pH and microscopic characteristics such as concentration, motility and mortality of pig ejaculate were analyzed. The results of the macroscopic characterization showed that the ejaculates presented a milky white color, odor with sui generis characteristics and pH with ranges from 7.10 to 7.36 up to 6 days. The microscopic evaluation of the ejaculates showed a greater conservation effect with the use of the Minitube diluent, due to the fact that a greater efficiency was observed on 6 days in the agglutination, sperm motility, sperm concentration and viability parameters, while for days 9 and 12 found a lower efficiency in the diluents. The cost-benefit ratio was higher in the Vim and Kubus diluents with a value of $1.59, however, its conservation efficiency was lower compared to the Minitube diluent, which presented a cost-benefit ratio of $1.58. It is concluded that the Minitube diluent presented a greater conservation effect.