Genetic relationship between purebred and crossbred sow longevity

Table 1 Descriptive statistics for cumulative born alive traits in purebred and crossbred sows^a

Trait^b	Mean ± SD	Maximum
PNBA2	17.4 ± 7.4	37
PNBALF	27.5 ± 19.5	132
CNBA2	21.6 ± 6.8	40
CNBA3	30.6 ± 12.2	59
CNBA4	38.1 ± 17.9	81
CNBA5	44.5 ± 22.9	93
CNBALF	50.2 ± 30.0	146

^aPurebred sows were from a Landrace pure line, and the crossbred sows were F1 offspring from a cross between a Landrace pure line and a Large White pure line
^bPNBA2 and PNBALF represent the cumulative number born alive for purebred sows at parity 2 and for their lifetime. CNBA2, CNBA3, CNBA4, CNBA5, and CNBALF represent the cumulative number born alive for purebred sows at parity 2, parity 3, parity 4, parity 5, and for their lifetime

ISSN: 2049-1891