الفهرس 
Physiological reviewOnly 14 pages are availabe for public view
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Abstract
The present work includes comparative physiological, histological and histochemical investigations of the kidneys, livers and pectoral striated muscles of two different species of bats having different feeding habits. The two bats are; the fruit-eater species, Rousettus aegyptiacus and the insect-eater species, Rhinopoma hardwickei . The mean RNA, DNA, and protein. concentration of kidney of Rousettus aegyptiacus is much higher than that of Rhinopoma hardwickei in wet weight. The mean RNA, and DNA concentration of both leg and pectoral muscles of Rousettus aegyptiacus is much higher than it in Rhinopoma species in wet weight and the opposite in case of protein. The mean RNA concentration of liver of insectivorous bat is much higher than that of frugivorous bat in wet weight and the opposite concerning DNA and protein, but with small differences. The mean (RNA/DNA), and (RNA/ protein) ratios of kidney of fruit-eater bat are higher than those in the other species, and the opposite in the (protein/DNA) ratio. The mean (DNA/RNA) and (Protein/DNA) ratios of both leg and pectoral muscles of Rhinopoma hardwickei are higher than it in the other species, while the opposite in the ratio (RNA/protein). The mean (RNA/DNA) and (RNA/protein) ratios of liver of Rousettus species are higher than that of the other species, but the opposit in the (protein/DNA) ratio. The mean water content percentage of kidney, liver and pectoral muscle of insectivorous bat are higher than that of frugivorous bat, and the opposite concerning leg muscle. The mean RNA, and DNA percentage of dry weight of kidney as well as pectoral muscle of Rousettus aegyptiacus is higher than that of Rhinopoma hardwickei , and the opposite in case of protein. The mean RNA, DNA, and protein percentage of dry weight of leg muscle of Rousettus species is higher than its correspondant of the other species. The mean RNA percentage of dry weight of liver of Rhinopoma species is higher than that of Rousettus species, while the opposite is respect to DNA and protein. The mean kidney and liver macromolecular (RNA, DNA, and protein) content per organ of the fruit species is much higher than that of the other species. The mean glycogen concentration of the four studied organs of insectivorous bat is higher than that of frugivorous bat. The blood glucose concentration in mg/g of Rousettus aegyptiacus is higher than its correspondant of Rhinopoma species.