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Iowa Swine Technical Articles

Abstract The recently emerged PRRSV 1-4-4 L1C variant (L1C.5) was in vivo and in vitro characterized in this study in comparison with three other contemporary 1-4-4 isolates (L1C.1, L1A, and L1H) and one 1-7-4 L1A isolate. Seventy-two 3-week-old PRRSV-naive pigs...
Iowa State University scientists are leading a new study to mine the intricate content of pigs’ blood cells to improve selection for disease resilience. “We’re looking for new, more effective ways to measure and predict different traits in pigs, especially...
NON-TECHNICAL SUMMARY: Infectious disease and other external stressors are large cost components in pork production and are detrimental to animal welfare. Resilience is defined as the ability of an animal to perform and thrive despite exposure to stressors (infectious...
  Simon Grey, General Manager Russia, CIS and Europe, Genesus Inc. Selection indexes in the Genesus Genetic Program are a measure of profitability. Genomic Estimated Breeding Values (GEBV) are estimated for the key traits affecting profitability. The higher the Index the more...
Chad Bierman, PhD, Geneticist, Genesus Inc. What is disease resilience and why is it important? Disease challenges in swine put downward pressure on the economics of pork production. Disease resilience is important because it is a phenotypic descriptor for individual...
A trial managed by Carthage Innovation Swine Solutions (CISS) in the US found that the 100 percent natural oregano essential oil (OEO) feed additive, Orego-Stim from Anpario, improved numbers of piglets weaned per sow through reduced mortality and removals...
Download the complete article Daniel Andersen, Associate Professor, Ag. and Biosystems Engineering, Iowa State University, Ames Iowa Purpose Iowa Select Farms installed an electrostatic precipitator at the end of two tunnel ventilated swine finishing barns near Alden, Iowa. The objective was to quantify...
Introduction The porcine epidemic diarrhea virus (PEDV) epidemic in 2013 – 2014 caused high morbidity and mortality for hog farmers throughout North America.  Animal feed was identified at that time as a risk factor and one of the potential vehicles...
A large portion of sows removed from commercial breeding herds in the U.S. are due to lameness. Previous data suggest levels of P fed to developing gilts may be below that required for maximal skeletal development, and that microbial...
Abstract Beginning in the fall of 2014 there has been a general and widespread increase in the incidence of prolapse in the U.S. swine herd. The purpose of this manuscript is to review the incidence, causative factors and treatment...
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