Factors Affecting Reproductive Efficiency of the Breeding Herd

Opportunities For Improving Reproductive Management And Efficiency Of The Swine Breeding Herd With Artificial Insemination

Current Status of AI Use The USA swine breeding herd has been reported to include 3.9 million sows. Approximately 60% of these sows were determined to have been mated by artificial insemination. Each sow received 6.5 doses of semen annually, for a total of 25 million doses utilized in a single year (1999, Boar Semen Conference). Most of the AI is performed with 3 billion sperm in 80 cc of a 5-d...

Factors Affecting Breeding Success

Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds

We review critical factors associated with reproductive performance of female breeding pigs, their lifetime performance and herd productivity in commercial herds. The factors include both sow-level and herd-level factors. High risk sow-level groups for decreasing reproductive performance of female pigs are low or high parity, increased outdoor temperature, decreased lactation feed intake, singl...

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Porcine reproductive and respiratory syndrome diagnostics in the breeding herd: Back to the basics

Due to the negative economic impact that porcine reproductive and respiratory syndrome (PRRS) has on the swine industry,1,2 diagnostic techniques for this disease have gradually developed. Therefore, it is critical that veterinarians understand the advantages and disadvantages of the currently available technology associated with diagnostic assays for PRRS virus (PRRSV). Veterinarians have chan...