Ahmed M. Fouad

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The study was designed to evaluate the effects of different dietary levels of rice bran (RB) in laying duck diets on performance, egg quality, oxidation status, egg yolk fatty acid composition, and hepatic expression of fatty acid metabolism-related genes. Longyan females (1080) with similar BW at 19 wk of age were randomly assigned to 6 dietary treatments,(More)
In this paper we propose a new unconstraining method for demand forecasting. Since true demand forecasting is a key aspect of hotel room revenue management systems, inaccurate forecasts will significantly impact the performance of these systems. We propose a method based on a Monte Carlo simulation forecasting model and an Expectation-Maximization (EM)(More)
This study aimed to establish the arginine requirements of Longyan ducks from 17 to 31 wk of age based on egg production, egg quality, plasma, and ovarian indices, as well as the expression of vitellogenesis-related genes. In total, 660 Longyan ducks with similar body weight at 15 wk of age were assigned randomly to 5 treatments, each with 6 replicates of(More)
In this paper we tackle the overbooking problem in hotel revenue management (RM). We propose a simulations-based approach for the overbooking problem. It is based on accurately estimating all the hotel's processes, such as reservations arrivals, cancelations, length of stay, demand seasonality, etc. Subsequently, all these processes are simulated forward in(More)
In this study, 6 dietary DL-methionine (Met) levels (2.5, 3.0, 3.5, 4.0, 4.5 and 5.0 g/kg) were tested to estimate the dietary Met requirements of Longyan ducks from 19 to 46 weeks of age, and to investigate its effect on the glutathione redox system. In total, 1080 Longyan ducks aged 19 weeks were allocated randomly to the 6 dietary treatments, where each(More)
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