Experimental animals
Male albino rats weighing 80 – 120 g were obtained from the animal
house of the national research centre (NRC), Giza, Egypt. The
animal were housed in individual suspended stainless steel cages
at 22 ± 2°C with a 12 h light/dark cycle and allowed to acclimatize
for a period of 15 days to the experiment and rats were allowed free
access food and water