The aim of this study was to evaluate the effect of organic selenium supplementation on the immune response of broilers vaccinated against coccidiosis, Infection Bursal Disease Virus (IBDV) and Newcastle Diseases Virus (NDV). The study included three treatments (T), T1= control (inclusion of inorganic selenium in a basal diet), T2= basal diet + 0.2 ppm of organic selenium as selenomethionine an...

In the present study, comparison of  photocatalytic activity of nanostructures semiconductor zinc oxide (ZnO) was prepared using the different methods on the degradation of organic dye such as methylene blue that was investigated. Previous studies have proved that such semiconductors can degrade most kinds of persistent organic pollutants, such as detergents, dyes, pesticides and volatile organ...

the aim of this study was to evaluate the effect of organic selenium supplementation on the immune response of broilers vaccinated against coccidiosis, infection bursal disease virus (ibdv) and newcastle diseases virus (ndv). the study included three treatments (t), t1= control (inclusion of inorganic selenium in a basal diet), t2= basal diet + 0.2 ppm of organic selenium as selenomethionine an...

Thin ®lms which have electrical bistable effects are mostly metal-organic complexes and/or organic-organic (all-organic) complexes. Very recently some simple (mono-molecular) organic materials have been discovered which have bistable states at room temperature, too. The threshold voltage across these organic ®lms with a thickness of 60 nm is 4±6 V and the transition time is 5±10 ns. Therefore, ...

This study focused on the effect of powder activated carbon (PAC) adsorption on microfiltration (MF) membrane performance. The results showed that PAC pretreatment offered high organic matter removal rates for both dissolved organic carbon (DOC) and ultraviolet absorbance at 254 nm (UV254) during 10-200 mg/L PAC dosage. The removal efficiencies of organic matter by MF membrane filtration decrea...

The aim of this study was to compare conventional and organic diets in beef production. Thirty-two dairy beef calves were used in 4 treatments: organic diet with three levels of forage [70% of organic diet with high amount of forage (ORH), 55% of organic diet with medium amount of forage (ORM), 38% of organic diet with low amount of forage(ORL)] and conventional diet (CON). The dry matter intak...

In the past decade, a global demand for products from organic agriculture has increased rapidly. Milk quality is of major interest to all parties. Therefore, the objective of this study was to compare cow performance and product quality on conventional and organic diets. 72 Holstein dairy cows were allotted to one of four diets: a conventional diet (CON40), an organic diet with a low amount of ...

Land area devoted to organic agriculture has increased steadily over the last 20 years in the United States, and elsewhere around the world. A primary criticism of organic agriculture is lower yield compared to non-organic systems. Previous analyses documenting the yield deficiency in organic production have relied mostly on data generated under experimental conditions, but these studies do not...