Effect on fertility of sperm motility in pooled Duroc semen
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چکیده
Sperm with reduced motility has reduced fertilizing capacity. If low-motile Duroc sperm is mixed with high-motile sperm, the fertilizing capacity of that dose is equal to semen doses exclusively containing high-motile Duroc sperm. With doses that only contained low-motile sperm, the number of total born piglets per litter dropped by minimum 0.5. Duroc boars were selected on the basis of the percentage of motile sperm assessed with SpermVision CASA system version 3.0, and divided into three groups: Group 1: Semen with high motility Group 2: Semen with reduced motility Group 3: Equal share of semen from groups 1 and 2 4,528 LY sows from three Danish sow farms were randomly allocated to the three groups and inseminated with semen from the selected boars.
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