Breeding goal: Reproduction
In the sow lines, the sow effect on number of viable piglets at day one of farrowing is considered along with the boar fertility as the boar effect on the number of viable piglets at day one of farrowing. For the Duroc breed, the boar fertility is considered as the boar effect on the number of viable piglets at day one of farrowing. These breeding goals will improve the number of viable piglets per litter which will have a beneficial effect on the profit and the environment as it will increase the number of piglets weaned per sow per year. Fewer sows needed to produce the same number of pigs will result in a decreased amount of feed needed and less manure produced.
