Utilização de extrato liofilizado de palma forrageira gigante, Opuntia ficus indica e água de côco em pó (ACP-104), para a criopreservação do sêmen de curimatã (Prochilodus brevis)

Abstract

This thesis presents a study on the use of two bioproducts, the first base of liquid extract of giant cactus pear (Opuntia ficus indica) lyophilized and the second the coconut powder ACP-104 as diluent semen common curimatã (Prochilodus brevis). This study was motivated by the scarcity of information about the semen of species of tested bioproducts and the need to develop a protocol for cooling and cryopreservation of semen using common curimatã associated with bioproducts based on cactus pear and ACP-104. The thesis is presented in three chapters. The first chapter is a review article containing biotechnologies employed in the preservation of gametes. Report him to the techniques of cooling, freezing and thawing of semen and morphological and computerized assessment of sperm of common curimatã (P. brevis). The second chapter aims to morphological analysis and cryopreservation of sperm of common curimatã (P. brevis) diluted in solutions based on extracts of giant cactus pear (O. ficus) lyophilized, ACP® (coconut milk powder) and glucose solution 5%. In this experiment the computer program CASA (Computer-Assisted Sperm Analyser) was used to analyze the properties of trajectory and speed of sperm for each solution studied. This research aimed to evaluate the effects of cryopreservation of semen from common curimatã (P.brevis), using as diluent extract giant cactus pear (O. ficus) lyophilized (EPFL). The methodology used in sperm cryopreservation of curimatã using the diluents ELPF 30%; ELPF 50%, ACP-104 and 5% dextrose, afforded the rate of post-thaw motility higher than 60%. The best way of semen freezing P. brevis, the tested conditions is what uses the association of ACP-104 with 10% DMSO. The methodology used in sperm cryopreservation of curimatã (P. brevis) using diluents ELPF 30%; ELPF 50%, ACP-104 and 5% glucose were suitable, capable of producing rates higher post-thaw motility 60%. The significant results were those obtained when using the combination of ACP-104 and 10% DMSO. The other treatments may be considered an assisted reproductive program, as presented within the performance standards for the use of cryopreserved semen in species Prochilodus brevis.