Kuwait Institute for Scientific Research is an organization in Kuwait which engages in scientific and applied research for several purposes, including preserving the environment, serving the economy, advising the government of scientific issues, and others. Wikipedia.
Al-Saffar A.E.,Kuwait Institute for Scientific Research
Tropical animal health and production | Year: 2012
Two experiments were conducted to investigate the effect of phytase and/or multienzymes (protease, amyloglucoidase, xylanase, B-glucanase, cellulose, and hemicellulase) on improving the utilization of date pit (DP) in laying hens. In the first one, DP completely replaced corn in four isocaloric and isonitrogenous diets: (1) DP50 without additives, (2) DP50 + 500 FTU phytase/kg, (3) DP50 + 0.1 % multienzymes, and (4) DP50 + 500 FTU phytase/kg + 0.1 % multienzymes, in addition to the diet without DP. In the second experiment, DP was included at 0 %, 15 %, and 30 % in isocaloric and isonitrogenous diets. Meanwhile, diets containing 15 % and 30 % DP (DP15 and DP30) were fed without or with 500 FTU phytase/kg diet and/or 0.1 % multienzymes. In both experiments, each diet was fed to six groups of five hens housed individually (520 cm(2) per hen) during 30-42 and 28-42 weeks in the first and second experiment, respectively. In the first experiment, productive performance and shell quality of laying hens significantly decreased due to complete substitution of corn, but fertility and hatchability were not affected. Phytase, multienzymes supplementation did not restore laying performance to the control level. The results of experiment 2 indicated that DP could be included in laying hens diets up to 30 % when supplemented with multienzymes. Source
Habib K.,Kuwait Institute for Scientific Research
Review of Scientific Instruments | Year: 2011
Optical interferometry techniques were used for the first time to measure the volume resistivityconductivity of carbon steel samples in seawater with different concentrations of a corrosion inhibitor. In this investigation, the real-time holographic interferometry was carried out to measure the thickness of anodic dissolved layer or the total thickness, Utotal, of formed oxide layer of carbon steel samples during the alternating current (ac) impedance of the samples in blank seawater and in 5-20 ppm TROS C-70 inhibited seawater, respectively. In addition, a mathematical model was derived in order to correlate between the ac impedance (resistance) and the surface (orthogonal) displacement of the surface of the samples in solutions. In other words, a proportionality constant resistivity (p) or conductivity (σ) = 1/p between the determined ac impedance by electrochemical impedance spectroscopy (EIS) technique and the orthogonal displacement (by the optical interferometry techniques) was obtained. The value of the resistivity of the carbon steel sample in the blank seawater was found similar to the value of the resistivity of the carbon steel sample air, around 1 × 10-5 δcm. On the contrary, the measured values of the resistivity of the carbon steel samples were 1.85 107, 3.35 × 107, and 1.7 × 10 7 δ cm in 5, 10, and 20 ppm TROS C-70 inhibited seawater solutions, respectively. Furthermore, the determined value range of of the formed oxide layers, from 1.7 × 107 to 3.35 × 10 7 δ cm, is found in a reasonable agreement with the one found in literature for the Fe oxide-hydroxides, i.e., goethite (α-FeOOH) and for the lepidocrocite (α-FeOOH), 1 109 cm. The value of the Fe oxide-hydroxides, 1 109 δcm, was found slightly higher than the value range of the formed oxide layer of the present study. This is because the former value was determined by a dc method rather than by an electromagnetic method, i.e., holographic interferometry with applications of EIS, i.e., ac method. As a result, erroneous measurements were recorded due to the introduction of heat to Fe oxide-hydroxides. © 2011 American Institute of Physics. Source
Kuwait Institute for Scientific Research | Date: 2014-09-17
An anesthetic and therapeutic composition for use in aquaculture includes an essential oil preferably thyme oil that is mixed with ethanol in an amount of one part essential oil preferably thyme oil to five parts ethanol. The essential oil ethanol mixture is then dispersed in water preferably seawater to provide 10 to 60 ppm of essential oil. The oxygen in the composition is between about 5.00 and 6.5 mg/L and in a preferred embodiment is enhanced by an agar stabilizer. The invention also contemplates treating fish such as sheam and sobaity and shrimp and seahorse to reduce stress and maintain a temperature of about 20-27 C.
Kuwait Institute for Scientific Research | Date: 2015-04-15
The nanocomposite mixed-matrix membrane is a nanocomposite made from a nanofiller of Halloysite nanotubes or polypropylene-grafted maleic anhydride nano-layered silica dispersed or embedded in a hydrophobic polymer matrix. The Halloysite nanotubes are a 1:1 layered alumino-silicate clay having the chemical formula Al
Kuwait Institute for Scientific Research | Date: 2012-07-20
A bivalent vaccine against