Table 2.

Carrier‐by‐carrier litters show 23% decrease in pre‐weaning survival compared to carrier‐by non‐carrier litters.

Status	No. litters	Avg. totalborn	Avg. liveborn	Farrowing survival %	Weaning survival %
N × N	4556	10.29	9.36	90.61	89.55
C × N	777	10.31	9.28	89.28	90.41
C × C	31	10.19	9.06	87.90	69.99 *

The weaning period corresponds to 21 days.

^*P < 0.01.

Significant results are indicated in bold.