Evaluation of Motility, Viability and Abnormality of Boar Spermatozoa in Various Modified Extenders

The purpose of this study was to conduct an assessment on the quality of pig semen spermatozoa during storage and determine which diluent material should be used and how long pig semen can be stored. Freshly ejaculated boar semen was obtained from a two-years-old Duroc male and was diluted with Beltsville Thawing Solution (BTS) and Tris Citrate Fructose (TCF) supplemented with 5% egg yolk (KT) and extract of Borassus flabellifer Linn mesocarp (EM) 0.01% and stored at 13°C for up to 4 days. An experimental study with a completely randomized design with four groups and five repeats was applied. Parameters observed were motility, viability and abnormality of spermatozoa. Sperm quality was evaluated by examining motility and abnormality using a phase-contrast microscope with a magnification of 100X, and viability by eosin nigrosine staining. Parametric data were analyzed with ANOVA followed by Duncan test. The results showed that the supplementation of 5% egg yolk in the BTS diluent-based treatment group showed a higher percentage of motility (P40%, viability >45% and abnormalities