title: Breeding record analysis in pig herds and its veterinary applications--1: Development of a program to monitor reproductive efficiency and weaner production.
abstract: Analyses of breeding records and herd efficiency factors are important for veterinary surgeons supervising reproductive efficiency and piglet performance in breeding herds. These data include: the number of litters produced per sow per year; the distribution of weaning to service intervals; the number of sows returning to service by 30, 60, 90 and 120 days; the percentage of sows farrowing to first service; the percentage of sows found to be not pregnant; and the percentage of sows aborting. Boar performance data, piglet mortality percentages, piglet growth rates, feed efficiency factors and the percentage of sows culled from the herd are also analysed. A computer program was developed to produce these and other data from simple breeding records.
mesh_terms: D000818:Animals; D001947:Breeding; D003201:Computers; D005260:Female; D005306:Fertilization; D008098:Litter Size; D008297:Male; D011247:Pregnancy; D011996:Records; D012098:Reproduction; D012606:Scotland; D013552:Swine / Q000254:growth & development / Q000502:physiology*; D013553:Swine Diseases / Q000401:mortality; D014730:Veterinary Medicine; D014886:Weaning