Kovács I. Endre szerk.: Rovartani Közlemények (Folia Entomologica Hungarica 10/1-12. Budapest, 1957)

Silkworms fed with such leaves digested 65.8 per cent of the protein and 7 per cent of the fihre content of the leaves, the utilization of fat an N~free extracts remaining unchanged. Hydrochloric acid and pepsin solutions did not affect digestion and only the influence of water could he observed. The silkworm commences to excrete part of the food as soon as 1 hour after feeding, but complete excretion is finished only after about 12 hours. Within this time the bulk of the consumed leaves leave the intestines between the 3rd and 5th hours. Starvation causes a prolonged detention of food in the gut and only after next feeding are the last particles removed. Changes in the utilization of food by starved vs. normally fed animals could not be observed. Irodalom - Litterary Aoçtua

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