Your herd's weaning average naturally helps determine your pigs per sow per year. Veterinarian Tom Fangman, University of Missouri has developed some critical-control-point considerations that can influence your weaning average.
He identifies the control points to achieve a weaning average of 8.5 to 9.9 pigs per litter as follows.
- Born Alive (10 to 11.1 pigs), which is influenced by:
B. Farrowing interval.
C. Sow parity
D. Management farrowing (intervention).
E. Health (parvovirus, porcine reproductive and respiratory syndrome, others).
- Death Loss (11 percent to 15 percent).
A. Crate design to prevent piglet crushing.
B. Environmental controls.
C. Lactation quality.
D. Puerperal diseases.