Peer-reviewed veterinary case report
Breeding record analysis in pig herds and its veterinary applications--1: Development of a program to monitor reproductive efficiency and weaner production.
- Journal:
- The Veterinary record
- Year:
- 1977
- Authors:
- Pepper, T A & Boyd, H W
Plain-English summary
This study looked at how to improve pig breeding by analyzing records that track how well pigs are reproducing and how many piglets they produce. Key information includes how many litters each female pig (sow) has in a year, how long it takes for them to breed again after weaning, and how many sows are not pregnant or have miscarried. The researchers also examined how well the male pigs (boars) perform, how many piglets die, how fast they grow, and how efficiently they use feed. To make this easier, they created a computer program that can quickly generate these important statistics from basic breeding records.
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.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/919248/