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Heat Stress in Boars

by 5m Editor
2 August 2012, at 8:00am

UK - Boars used both for natural service and AI need careful management in warmer weather. Heat stress reduces quality of semen, warns Paul Thompson, veterinary consultant to pig-breeding company, ACMC.

The temperature at which this occurs varies from boar-to-boar but can start from around 25oC. The temperature in boar houses should therefore be monitored. If ambient house temperatures are high supplemental cooling is advised e.g. by drip-lines, misting or washing down passageways to increase evaporative cooling and introducing some airflow across the pigs.

Semen quality can be adversely affected for up to six weeks after hot weather.