this experiment was conducted to evaluate and compare antibiotic, organic acid, probiotic and prebiotic effects on performance, egg quality and blood metabolites in commercial laying hens. the experiment was a completely randomized design with 160 laying hens strain hy line (w-36) from 32 to 42 weeks of age with 5 treatments and 4 replicates of 8 hens each. the experimental treatments consisted...

The effect of magnetic field on the liquid-liquid equilibrium of two ternary systems (water + acetic acid + butyl acetate and water + acetic acid + dimethyl succinate) at 298.15 K under atmospheric pressure was investigated. The results obtained show that the strength of the magnetic field (0.02 T) affects the solubility of acetic acid in the used organic solvents. Distribution coefficients and...

The aim of the present work was to compare the effect of organic production vs standard cage system on welfare and performance of a pure breed (Ancona) vs a commercial strain (Brown Hy-Line) of laying hens through a multifunctional approach (behaviour, tonic immobility, feathers score, antioxidant status of the body, blood parameters, innate immunity and mortality). The trial was carried out in...

Conventional water chemistry parameters such as hardness, alkalinity, and organic carbon are known to affect the acutely lethal toxicity of copper to fish and other aquatic organisms. In the present study, we investigate the influence of these water chemistry parameters on short-term (3 h), sublethal (0-40 microg/L) copper toxicity to the peripheral mechanosensory system of larval zebrafish (Da...

We present a method of generating organic, 2D forms using a collection of adaptive line-drawing agents. The agents follow random-curvature walks when roaming in isolation. Each walk branches with a probabilistic rule. When an agent “sees” a neighboring path or an old segment of its own path, it attempts to follow it. The “following algorithm” generates rhythmic undulations as the agent pursues ...

A straightforward on-line monitoring of organic reactions by ultrasonication-assisted spray ionization mass spectrometry (UASI MS) is demonstrated in this work.

The present study aimed to investigate the organic agricultural products supply chain in Iran and provide a processes maturity framework for this chain based on the Iranian Standard of the organic products. Accordingly, the model, proposed in this research, provides an improvement tool that addresses the integration of company's internal processes at low levels, and the integration of the proce...

The Office of Graduate Studies has verified and approved the above named committee members. iii ACKNOWLEDGMENTS I would like to thank Dr. André M. Striegel for serving as my major professor, academic advisor, and mentor for the past three years. His advice, guidance, and patience never wavered as he kept me pointing towards the final goal I will hopefully soon attain. I'm proud to be his first ...

Based on a modified expression of the rate of the convective constraint release, we present a new contour-variable model of constitutive equations in which the non-uniform segmental stretch and the non-Gaussian chain statistical treatment of the single chain are considered to describe the polymer chain dynamics and the rheological behavior of an entangled system composed of linear polymer chain...