Background:
The use of artificial insemination (AI) in swine is based on liquid extended semen. Typically, an ejaculate from a single or multiple boar is collected, and then processed individually or pooled. Pooling semen takes advantage of the improved fertility of some boars and minimizes the effects of a sub-fertile boar (or sub-fertile ejaculate). In either case the ejaculate or ejaculates are evaluated, and processed to extend its volume in order for multiple females to be inseminated from a single ejaculate. Semen fertility must also be extended over days because raw semen is only fertile for hours after collection. Hence, there is a need to extended the shelf life of the semen through the extender.
Technology Details:
The extender is a formulation in powder form. This can be dissolved in double distilled water to make volume 1 liter. This is the extender for the preservation of boar semen at 15-17°C for at least 72 hours.