Canada - 2003 Annual (61 farms)
Measurement	Mean	Upper 10%	Lower 10%
Average parity	2.99	3.7	2.3
Percent multiple matings	80.62	97.8	61.6
Percent repeat services	10.58	5	16
Ave non-productive sow days	56.22	32.4	78.7
Ave parity of culled sows	5.17	7.55	3.2
Ave parity of farrowed sows	3.92	4.7	2.85
Average age at weaning	20.58	25.2	17.45
Average female inventory	846.71	1652.3	182.9
Average gestation length	115.22	114	116
Average gilt pool inventory	31.3	76.6	0
Average mummies per litter	0.22	0.1	0.4
Average pigs born alive/litter	10.87	11.7	10.05
Average stillborn pigs	0.82	0.6	1.5
Average total pigs per litter	11.89	12.9	10.95
Culling rate	38.13	25.2	53.7
Death rate	7.33	2.8	10.7
Entry - 1st service interval	24.69	46.3	0
Farrowing interval	149	156	143
Farrowing rate	82.07	89.45	74.85
Litters / female / year	2.29	2.45	2.1
Litters / mated female / year	2.38	2.51	2.23
Old lits / mated female / year	2.31	2.51	2.05
Old pigs wnd / Inv. female / y	21.7	25.65	18.9
Percent less than 7 born live	8.81	13.75	5.1
Percent sows bred by 7 days	86.98	93.4	78.9
Pigs weaned / lifetime female	45.85	67.5	26.5
Pigs weaned per litter weaned	9.55	10.45	8.65
Pigs weaned per sow	9.54	10.35	8.75
Pigs wnd / female / year	21.41	25	18.4
Pigs wnd / mated female / yr	22.23	25.5	19.6
PWM for farrowed and weaned	12.38	8.8	15.45
Replacement rate	64.6	30.9	69.8
Weaning - 1st service interval	7.53	5.8	9.45