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This experiment was conducted to evaluate and compare the effects of inorganic and organic selenium sources with inorganic and organic carriers on growth performance, starter feed intake, blood parameters, and the concentration of glutathione peroxidase in the blood of suckling Holstein calves. To this objective, 40 suckling Holstein calves (38.47±2.52 kg average birth weight) at 7 days of age were selected and randomly divided into four experimental groups (10 replicates). The experimental groups included control (without selenium supplement), inorganic selenium (supplemented with sodium selenate), organic selenium with inorganic carriers and, organic selenium with organic carriers. The results show that the supplementation of selenium significantly increased the glutathione peroxidase enzyme concentration (P<0.01) and can significantly reduce the concentration of plasma cholesterol (P<0.01). However, there was no significant effect of selenium supplementation on serum glucose, plasma total protein, triglyceride, and urea nitrogen concentrations. Also, none of the treatments had a significant effect on growth performance and starter feed intake.

Economic crimes in industrialized developing countries, especially in Iran, constitute an important level of crime. The main nature of these crimes and the deep-seated tragedy of its victims in various areas, in addition to the wide range of economic crimes and the number of genuine and legal victims, and in particular the economic system, distinguish these crimes from other crimes. The support of this group of victims in various areas can be evaluated and reviewed. The most important type of support is legislative support, which anticipates various actions in this area, in the wake of several different laws by adopting various laws. But by examining the relevant laws, we find that only legitimate legislature has failed to take the necessary steps to support these perpetrators, in which numerous factors have affected it. In this article, one can examine some of these causes, including legislative changes, the inappropriateness of penalties, legislature vacuum, and so on., Os crimes econômicos nos países em desenvolvimento industrializados, especialmente no Irã, constituem um importante nível de criminalidade. A natureza principal desses crimes e a profunda tragédia de suas vítimas em diversas áreas, além da ampla gama de crimes econômicos e do número de vítimas genuínas e legais, e em particular o sistema econômico, distinguem esses crimes de outros crimes. O apoio deste grupo de vítimas em várias áreas pode ser avaliado e revisto. O tipo mais importante de apoio é o apoio legislativo, que antecipa várias ações nesta área, na esteira de várias leis diferentes, através da adoção de várias leis. Mas ao examinar as leis relevantes, descobrimos que apenas o legislador legítimo não tomou as medidas necessárias para apoiar estes perpetradores, nos quais numerosos fatores o afetaram. Neste artigo, pode-se examinar algumas dessas causas, inclusive mudanças legislativas, a inadequação das penas, o vácuo legislativo, etc., Los delitos económicos en los países industrializados en desarrollo, especialmente en Irán, constituyen un nivel importante de delincuencia. La naturaleza principal de estos delitos y la profunda tragedia de sus víctimas en diversas áreas, además de la amplia gama de delitos económicos y el número de víctimas genuinas y legales, y en particular el sistema económico, distinguen estos delitos de otros. El apoyo a este grupo de víctimas en diversas áreas puede ser evaluado y revisado. El tipo de apoyo más importante es el apoyo legislativo, que anticipa diversas acciones en este ámbito, a raíz de la adopción de diversas leyes. Sin embargo, al examinar las leyes pertinentes, encontramos que sólo la legislatura legítima no ha tomado las medidas necesarias para apoyar a estos perpetradores, en lo que han influido numerosos factores. En este artículo, se pueden examinar algunas de estas causas, incluyendo los cambios legislativos, la inadecuación de las penas, el vacío de la legislatura, etc.