CHARACTERISTICS OF THAWED GOAT SEMEN AFTER ADDITION OF RINGER LACTATE, SODIUM CITRATE AND TRIS SOLUTION
DOI:
https://doi.org/10.1590/cab.v16i2.24240Keywords:
Animal ReproductionAbstract
Cryopreservation of semen is of great importance for various reproductive biotechnologies such as artificial insemination (IA), In Vitro Embryo Production (PIV) and Intracytoplasmic Sperm Injection (ICSI). The objective of this work was to evaluate the stability and persistence of motility and strength of sperm, as well as changes in the plasma membrane after the addition of Ringer Lactate, sodium citrate 2.92% or TRIS solution in thawed goat semen. Semen was collected from two Alpine Brown goats, and standard procedures for cryopreservation and seminal analysis were performed. After thawing the semen, the extenders Ringer Lactate, sodium citrate 2.92% and TRIS solution were added and Thermoresistance (TTR), Supravital and Morphology Tests were carried out. In TTR, only the group received TRIS solution presented motility and strength for a longer period (90 minutes; P< 0,05). No influence of the addition of the solutions was found in the morphological analysis, as well as in the Supravital Test, which showed values ??close to those found for motility (P> 0.05). We concluded that the addition of the solutions does not allow a large persistence of motility and strength of thawed sperm, but TRIS solution could be used for expansion of seminal doses used in vitro reproductive biotechnology.
Keywords: extender, goat, semen, spermatozoa.
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