Start Date: Apr 01, 2010
End Date: Feb 28, 2014
Aim 1: Semen will be collected, cryopreserved and analyzed post-thaw using computer automated semen analysis in order to categorize the samples into Good, Moderate and Poor quality. Additional analyses will also be performed using flow cytometry, in vitro fertilization, and sperm/egg binding assays. Based on the quality categorization a gilt artificial insemination trial will be performed. The data from these analyses will be used in a multivariate analysis to determine a parsimonious model for predicting the best opportunities for achieving fertility with frozen-thawed boar sperm. Aim 2: The new model derived from the data in Aim 1 will then be used to perform an artificial insemination trial based on the new semen quality rankings. Aim 3: The scope of this aim will include model development derived from Aims 1 and 2, a survey of the swine industry to determine their level of knowledge about swine artificial insemination, and the creation of workshops for boar owners and stud managers to transfer the technologies obtain in Aims 1 and 2.