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Flushing gilts initiated 5-7 days before service in second heat increases litter size

By Thomas Sønderby Bruun, Senior Specialist, SEGES Danish Pig Research Centre Abstract: Maximizing litter size in first parity is of outmost interest to optimize herd productivity. Boar exposure should be used strategically at the right gilt age and weigt to induce first heat. This allows the staff to plan the time for first service in the second heat and thereby to plan when to start the flushing period. Flushing in second heat has the potential to improve litter size in first parity. To discover the effects of flushing on hyper-prolific DanBred gilts, a large-scale experiment was conducted. Close to 2,000 …

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