Category Archives: Porcitec Consults

Lifetime sow performance predicted by the first farrowing

A recent published study looked for a correlation between the number of pigs born alive to parity one females and their subsequent lifetime and reproductive performance on commercial farms in southern Europe (Ilida, Piñeiro and Koketsu, 2015). The study results … Continue reading

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Second service perfomance of recycles

We wish to look at the birthing rate, total born & born alive of females who had a second service (NSERVICE=2) where the first service result = return to heat only (omit all other service result reasons except returns).  We … Continue reading

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How to join 2 tables to get next parity data

For example, I want to know the performance of sows after weaning by farrowing room. I want to know weaning and service performance in the current parity, and litter size in their next parity, so I need to join 2 … Continue reading

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Correlation between gestation lengths

Research has shown there is a statistical correlation between gestation length (GL) of first parity, and the average GL of subsequent parities, but supervisors are curious what it is for our farm. For example, for all parity 1 females with … Continue reading

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