The effects environment on Sow longevity

Longevity is affected by the environment in which the sows live. A vital factor is the strategy used by the farmer to cull the sows. The culling strategy is influenced by herd-specific procedures, except in cases where animal welfare or biosecurity guidelines necessitate involuntary culling. These guidelines describe when sows should be culled. However, the farmer’s own opinion of what constitutes a good production sow will also influence the culling decision. The differences in culling strategies between herds make it difficult to identify what is required for a sow to achieve high longevity. In general, the reproductive ability of a sow is influenced by different factors relating to both voluntary and involuntary culling.

Longevity is, however, an important aspect of maintaining highly efficient and healthy sows in the pig pro-duction industry. Moreover, a robust sow with a long reproductive life must be considered a more sustainable sow, than a sow with a shorter reproductive life. Because she reproduces more litters in her lifetime, which means the farmer can produce the same amount of litters with less sows.

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