الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
This work was carried out at the Rabbit Research Unit, Faculty of Agriculture, Cairo University, Giza, during summer months, 2008 and 2009.
It aimed to develop and validate a mathematical model for predicting the ambient air temperature (Ta) and relative humidity (RH) inside the rabbit housing systems. Investigate the effect of two housing systems on the productive and reproductive performance of New Zealand White (NZW) rabbits for predicting the main physiological responses and performance indices. There are different factors used in this analysis including the environmental parameters (air temperature, relative humidity and air velocity), structure thermal parameters (structure surfaces temperature for walls – doors – windows – roofs – batteries) physiological parameters and thermal reactions (rectal, fur, skin and ear temperatures).
Visual studio express C # (C sharp) was used to develop the computer software to predict the Ta. The model had been validated through a comparison between measured Ta and predicted Ta, measured RH and predicted RH in the rabbit houses.
The difference between predicted Ta and measured Ta inside house “A” varied from 0.34 °C at 14:00 h to 0.46 °C at 12:00 h with an average of 0.37 °C. whereas, the corresponding values for house “B” varied from 0.30 °C at 12:00 h to 0.46 °C at 18:00 h with an average of 0.38 °C.
The difference between predicted RH and measured RH inside house “A” varied from 0.44 % at 14:00 h to 0.99 % at 16:00 h with an average of 0.77 %. Meanwhile, the corresponding values for house “B” varied from 0.46 % at 14:00 h to 0.88 % at 16:00 h with an average of 0.73 %.
Model validation results indicated that the model is a useful tool to decide when and how much to adjust the internal environment conditions inside rabbit housing system.
Key words: Rabbits, energy balance, thermal properties, mathematical modeling, numerical simulation