Materials and Methods
Sand rats were caught in the Arab Republic of Egypt west of the Nile delta and then acclimatized to captivity in the Cairo-Giza Zoological Gardens as described by Haensel and Tscherner (1977, 1978) before being flown to Germany (Klöting and Hahn 1981). In the Gerhardt Katsch Institute of Diabetes at Karlsburg the animals were housed on dry sand in terrariums at an ambient temperature of 24° ± 1°C, a relative humidity of 55% ± 5%, and a constant light/dark regime of 8/20 h. For colony breeding they were fed ad libitum with green cabbage leaves of a mean composition of 10.5% (w/w) carbohydrate, 1.8% protein, 84.6% water, and 2.1% ash, providing 250kJ/100g.
KeywordsColor Index Nile Delta Zona Glomerulosa Acid Fuchsin Electron Microscopic Photograph
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