2000 PigCHAMP Breeding Herd Summary in Canada
Measurement	Average	Median	Upper 25%	Upper 10%
BREEDING PERFORMANCE
Repeat services, %	11.7	10.8	7.6	5.1
Multiple matings, %	86	94.5	98.5	99.7
Entry-to-service interval, days	32.9	30.8	19.4	13.9
Sows bred by seven days, %	87	88	92.2	95.6
Weaning-to-first-service interval	7.1	6.8	6	5.3
Average nonproductive days	64	59	49	41
FARROWING PERFORMANCE
Average gestation length	115	115	114	114
Average parity of farrowed sows	3.63	3.8	4.2	4.6
Farrowing interval	148	147	144	141
Farrowing rate, %	80	81	86.2	88.3
Average total pigs/litter	11.2	11.2	11.7	12
Average pigs born alive/litter	10.4	10.4	10.7	11.1
Average stillborn pigs	0.7	0.7	0.6	0.5
Average mummies/litter	0.2	0.2	0.1	0
Percent < 7 born alive	10.2	9.8	7.9	6.5
PWM for farrowed and weaned	11.9	11.5	9.2	7.6
Litters/female/year	2.21	2.25	2.34	2.41
Litters/mated female/year	2.33	2.35	2.43	2.49
Old litters/mated female/year	2.33	2.37	2.46	2.55
Litters/farrowing crate/year	14.2	13.1	16.7	20.3
WEANING PERFORMANCE
Pigs weaned/litter weaned	9.1	9.2	9.5	9.9
Average age at weaning	20.9	20.4	17.7	15.9
Adjusted 21-d litter weight (lb/kg)	61	62	65	73
Pigs weaned/sow	9.1	9.1	9.5	9.9
Pigs weaned/mated female/year	20.9	21.3	22.7	24.2
Old pigs weaned/mated female/year	21.6	21.6	23.6	25.4
Pigs weaned/female/year	20	20.6	21.9	23.4
Pigs weaned/lifetime	35.8	38	47	54
Pigs weaned/farrowing crate/year	131	122	152	183
POPULATION
Average female inventory (AFI)	377	237	463	802
AFI/farrowing crate	6.6	5.9	7.3	9.8
Average gilt pool inventory	23	11	28	59
Sow:boar ratio	24.2	19.7	30.5	48
Average parity	3	3	3.5	4
Replacement rate, %	49.6	46.5	36	28.9
Culling rate, %	41.1	38.9	32.3	25.4
Death rate, %	4.7	4.3	2.7	1.5
Average parity of culled sows	4.2	4.5	5.4	6.1
Farm n=282;  Median is 50th percentile.