2000 PigCHAMP Breeding Herd Summary in Mexico
Measurement	Average	Median	Upper 25%	Upper 10%
BREEDING PERFORMANCE
Repeat services, %	12.2	12	11	6.9
Multiple matings, %	85.5	98.8	99.9	100
Entry-to-service interval, days	22.4	31.3	23.9	20.8
Sows bred by seven days, %	85.7	85.4	88.5	90.7
Weaning-to-first-service interval	7.2	7	6.5	6.5
Average nonproductive days	106	117	72	44
FARROWING PERFORMANCE
Average gestation length	114.2	114	114	113
Average parity of farrowed sows	3.5	3.6	3.7	4
Farrowing interval	148	148	152	154
Farrowing rate, %	63.5	57	78.9	82.2
Average total pigs/litter	9.7	9.8	10	10.5
Average pigs born alive/litter	8.9	8.9	9.2	9.5
Average stillborn pigs	0.6	0.5	0.4	0.4
Average mummies/litter	0.2	0.3	0.1	0
Percent < 7 born alive	18.3	19.1	14.6	13.2
PWM for farrowed and weaned	8.8	9	6	5.3
Litters/female/year	1.93	1.75	2.23	2.36
Litters/mated female/year	2.09	2.05	2.38	2.47
Old litters/mated female/year	1.78	1.6	2.34	2.55
Litters/farrowing crate/year	10.5	10.7	13.2	13.6
WEANING PERFORMANCE
Pigs weaned/litter weaned	8.5	8.6	8.9	9.4
Average age at weaning	21.3	21.5	18.3	16.8
Adjusted 21-d litter weight (kg)	55	58	59	60
Pigs weaned/sow	8.2	8.3	8.5	8.7
Pigs weaned/mated female/year	17.2	16.2	20.2	21.2
Old pigs weaned/mated female/year	14.9	12.6	20.3	23
Pigs weaned/female/year	16	14.5	20	20.1
Pigs weaned/lifetime	28	24	38	14
Pigs weaned/farrowing crate/year	98	106	-	-
POPULATION
Average female inventory (AFI)	554	393	687	940
AFI/farrowing crate	5.8	5.75	-	-
Average gilt pool inventory	51	28	65	150
Sow:boar ratio	29	17	58	60
Average parity	2.7	2.6	3.1	3.3
Replacement rate, %	37.3	36.8	17.6	15.1
Culling rate, %	36.1	36.7	26.1	24.6
Death rate, %	4.7	4.4	3.5	2.1
Average parity of culled sows	3.5	3.3	4.8	5
Farm n=19;  Median is 50th percentile.