. Il bollettino biologico. Biologia; Zoologia; biologia; biologia marina. 458 V. G. DETHIER O O-l fv) Saccarosio proteina. La figura 1. Assunzione giornaliera di 0,1 M di saccarosio e cervello-cuore estratto da un maschio di mosca carnaria in un due-Scelta situazione. Modelli di ingestione di carboidrati quando carboidrati (0,1 M saccarosio) era il solo materiale offerto di mosche, il pattern di assunzione giornaliera per tutta la durata del volo era lo stesso per entrambi i sessi. Poco è stato preso sui primi due giorni dopo la nascita. Successivamente l'aspirazione ha raggiunto un valore elevato e progressivamente diminuiti fino a morte alcuni 50 giorni più tardi per la più longeva maschi

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. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 458 V. G. DETHIER O O-l fv) SUCROSE PROTEIN. FIGURE 1. Daily intake of 0.1 M sucrose and brain-heart extract by a male blowfly in a two-choice situation. Patterns of carbohydrate ingestion When carbohydrate (0.1 M sucrose) was the only material offered to flies, the pattern of daily intake over the lifetime of the fly was the same for both sexes. Little was taken on the first two days after emergence. Thereafter the intake reached a high value and gradually declined until death some 50 days later for the longest-lived males and 60 days later for the longest-lived females. During this period the daily intake exhibited marked fluctuations, but these were related to differences in activity correlated with variations in the climate of the laboratory. The experiments were conducted under constant lighting but not under constant temperature, humidity, and barometric pressure. Preferences If the flies had free access to both protein and carbohydrate at all times from the day of emergence, carbohydrate was nearly always taken in greater volume than pro- tein. If, however, the flies were denied access to protein and maintained on a minimal (0.0001 M) carbohydrate diet for the first five days of adult life, the subse- quent pattern of carbohydrate and protein intake was quite different. In the case of the males, protein intake remained very low, as before, but carbohydrate intake was very high the first two days (Fig. 4). In the case of virgin females protein. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Wood

Parole chiave associate all'immagine

• bookauthorlilliefrankrat
• booksubjectbiology
• booksubjectzoology