Canada- 4th quarter of 2003 (59 farms)
Measurement	Mean	Upper 10%	Lower 10%
Average parity	2.98	3.8	2.2
Percent multiple matings	81.74	98.1	61.6
Percent repeat services	10.42	4.9	16
Ave non-productive sow days	53.95	30.3	78.7
Ave parity of culled sows	5.17	7.8	3.1
Ave parity of farrowed sows	3.91	4.8	2.8
Average age at weaning	20.6	17.4	25.3
Average female inventory	871.59	1680.1	197.5
Average gestation length	115.19	114	116
Average gilt pool inventory	32.31	77.8	0
Average mummies per litter	0.23	0.1	0.4
Average pigs born alive/litter	10.87	11.7	10
Average stillborn pigs	0.82	0.6	1.1
Average total pigs per litter	11.91	12.9	10.9
Culling rate	37.91	21.8	53.7
Death rate	7.48	2.8	12.8
Entry - 1st service interval	25.02	46.7	0
Farrowing interval	148.45	155	143
Farrowing rate	82.26	89.5	75.5
Litters / female / year	2.31	2.46	2.1
Litters / mated female / year	2.39	2.52	2.14
Old lits / mated female / year	2.33	2.51	2.12
Old pigs wnd / Inv. female / y	21.89	25.7	19.1
Percent less than 7 born live	8.77	14	5.1
Percent sows bred by 7 days	87.6	93.4	79.1
Pigs weaned / lifetime female	45.93	69	26
Pigs weaned per litter weaned	9.56	10.5	8.6
Pigs weaned per sow	9.55	10.4	8.7
Pigs wnd / female / year	21.56	25.4	18.4
Pigs wnd / mated female / yr	22.39	26.1	19.6
PWM for farrowed and weaned	12.34	8.3	15.6
Replacement rate	65.52	30.9	71.8
Weaning - 1st service interval	7.04	5.7	9.3