From: The evaluation of an artificial intelligence system for estrus detection in sows
Farm A | Farm B | Farm C | |
---|---|---|---|
Herd size (number of sows) | 250 | 450 | 300 |
Sow batch production system | 5 | 4 | 3 |
Weaning age (days) | 24 | 21 | 24 |
Origin of the breeding gilts | Own breeding | Purchase | Own breeding |
Breed of the sows | English landrace × large white | TN70 | TN70 |
Dose of sperm applied (number of spermatozoa) | 2.4 × 109 | 0.8 × 109 | 1.6 × 109 |