Titlebook: Developments of the Avian Embryo; A Behavioural and Ph B. M. Freeman,Margaret A. Vince Book 1974 B. M. Freeman and Margaret A. Vince 1974 E

簡(jiǎn)略

https://doi.org/10.1007/978-3-663-10234-2 affects its behaviour after hatching. The learning discussed so far has been based on vocalizations. In addition, ways in which responsiveness increases or decreases with repeated stimulation, have been touched upon.

挑剔小責(zé)

Pantry

Pathobiochemie der Alkoholabh?ngigkeited on an adequate diet if the composition of the egg is to be satisfactory. It is not intended to consider here the effects of specific deficiencies in any great detail: for discussions of these topics the reader is referred to Beer (1969) and Romanoff (1972).

RAG

REP

Effects of External Stimulation on Embryonic Activity, Rate of Development and Time of Hatchingure (see Chapters 1 and 3). The embryo is active during the greater part of the incubation period, and although this activity is largely ‘spontaneous’, the embryo also interacts with its parents during the later, prehatching period. Interactions affecting motility, and based on vocalizations have been considered in Chapter 3.

Nonthreatening

legacy

簡(jiǎn)潔

bleach

Physiology of Hatchingand it is not surprising, therefore, that there is a peak of mortality at this time. Unlike the mammal, essentially all the stimuli are generated by the embryo itself, though it is able to respond to stimuli from both the parents and the other members of the clutch (see Sections 3.6 and 4.2.3).

Cultivate

https://doi.org/10.1007/978-3-663-10234-2Earlier chapters (3 and 4) have shown that embryonic behaviour and also embryonic development can be affected by stimulation from outside the egg. Effects reported occur during the latter part of the incubation period, but the sensory systems begin developing quite early and some become functional during the first half of incubation.