THE ONTOGENY OF HOMEOTHERMIC REGULATION IN POSTHATCHING CHICKS - ITS INFLUENCE ON THE DEVELOPMENT OF HEARING

被引：7

作者：

KAISER, A

机构：

[1] Institut für Zoologie der Technischen Universität München, D- W-8046 Garching

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1992年 / 103卷 / 01期

关键词：

D O I：

10.1016/0300-9629(92)90248-O

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

1. The maturation of homeothermy in chicks from day 0 to day 30 after hatching (P0-P30) was studied by measuring rectal temperatures following different environmental exposures. 2. Body temperature regulation and an adult-like temperature (41.5-degrees-C) develop with different time courses, being mature on days P4 and P23, respectively. After 1 hr at 20-degrees-C, P0 chicks were 4.5-6.5-degrees-C cooler than P30 animals. 3. A temperature effect shifts frequency in the auditory pathway up to 0.5 octaves to lower values. Some shifts in tonotopic maps observed in developmental studies of frequency representation in awake chicks can be fully explained by this temperature effect.

引用

页码：105 / 111

页数：7

共 32 条

[1] DEVELOPMENTAL-CHANGES IN FREQUENCY MAPPING OF THE GERBIL COCHLEA - COMPARISON OF 2-COCHLEAR LOCATIONS [J].