Aims: To study the pulsed ultraviolet (UV) inactivation of poliovirus and adenovirus.
Methods and Results: Viral suspensions of 2 ml volume were exposed to varying numbers of polychromatic light pulses emitted from a xenon flashlamp. Ten pulses produced an approximately 4 log10 reduction in poliovirus titre, and no infectious poliovirus remained after 25 pulses. With adenovirus, 10 pulses resulted in an approximately 1 log10 reduction in infectivity. Adenovirus required 100 pulses to produce an approximately 3 log10 reduction in infectivity, and 200 pulses to produce a greater than 4 log10 reduction.
Conclusions: Adenovirus was more resistant to pulsed UV treatment than poliovirus although both viruses showed susceptibility to the treatment.
Significance and Impact of the Study: Pulsed UV‐light treatment proved successful in the inactivation of poliovirus and adenovirus, and represents an alternative to continuous‐wave UV treatment.
Two replicates of 24 pigs each were divided into four treatment groups on the basis of weight and sex. Treatment 1 was a typical barley-soybean meal (SBM) diet. Sunflower seed was substituted for barley-SBM at the levels of 13, 26, and 39% of the diet. Linoleic acid ranged from a low of 7.5% in treatment 1 for intramuscular fat to a high of 54.2% in treatment 4 for inner backfat. Dietary treatments resulted in decreases in both saturated (myristic, paimitic, and stearic) and unsaturated fatty acids (palmitoleic, oleic, and linolenic) at all locations but were not always significant. Because of deleterious carcass effects, diets for growing-finishing swine should contain less than 13% sunflower seed (oil varieties).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.