Photoperiodicity and the thermoregulatory response to noradrenaline in the pigeon

A. Haim; S. Saarela; R. Hissa

doi:10.1016/0306-4565(79)90032-9

Photoperiodicity and the thermoregulatory response to noradrenaline in the pigeon

A. Haim, S. Saarela, R. Hissa

Research output: Contribution to journal › Article › peer-review

Abstract

1. 1.|Pigeons acclimated to darkness (24D, T_a = 22°C) or long scotophase (4L:20D, T_a = 22°C) responded to noradrenaline at T_a = 6°C as if cold-acclimated. Shivering was inhibited, and V_oO2 consumption and body temperature were decreased significantly (P < <0.02). 2. 2.|The response of pigeons acclimated to light (24L, T_a = 22°C) was high but not significantly different from the control group (12L:12D, T_a = 22°C). 3. 3.|In pigeons acclimated to 4L:20D (T_a = 32°C) shivering was not completely inhibited, even for a short period. 4. 4.|A linear relationship was found between decreasing V_O2 noradrenaline, which appeared to effect heat production rather than heat dissipation.

Original language	English
Pages (from-to)	167-171
Number of pages	5
Journal	Journal of Thermal Biology
Volume	4
Issue number	2
DOIs	https://doi.org/10.1016/0306-4565(79)90032-9
State	Published - Apr 1979
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by a scholarship from the Finnish Ministry of Education and the National Science Council of Finland.

Keywords

Noradrenaline
acclimation
oxygen-consumption
photoperiod
shivering
thermoregulation

ASJC Scopus subject areas

Physiology
Biochemistry
General Agricultural and Biological Sciences
Developmental Biology

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10.1016/0306-4565(79)90032-9

Cite this

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title = "Photoperiodicity and the thermoregulatory response to noradrenaline in the pigeon",

abstract = "1. 1.|Pigeons acclimated to darkness (24D, Ta = 22°C) or long scotophase (4L:20D, Ta = 22°C) responded to noradrenaline at Ta = 6°C as if cold-acclimated. Shivering was inhibited, and VoO2 consumption and body temperature were decreased significantly (P < <0.02). 2. 2.|The response of pigeons acclimated to light (24L, Ta = 22°C) was high but not significantly different from the control group (12L:12D, Ta = 22°C). 3. 3.|In pigeons acclimated to 4L:20D (Ta = 32°C) shivering was not completely inhibited, even for a short period. 4. 4.|A linear relationship was found between decreasing VO2 noradrenaline, which appeared to effect heat production rather than heat dissipation.",

keywords = "Noradrenaline, acclimation, oxygen-consumption, photoperiod, shivering, thermoregulation",

author = "A. Haim and S. Saarela and R. Hissa",

note = "Funding Information: This research was supported by a scholarship from the Finnish Ministry of Education and the National Science Council of Finland.",

year = "1979",

month = apr,

doi = "10.1016/0306-4565(79)90032-9",

language = "English",

volume = "4",

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journal = "Journal of Thermal Biology",

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T1 - Photoperiodicity and the thermoregulatory response to noradrenaline in the pigeon

AU - Haim, A.

AU - Saarela, S.

AU - Hissa, R.

N1 - Funding Information: This research was supported by a scholarship from the Finnish Ministry of Education and the National Science Council of Finland.

PY - 1979/4

Y1 - 1979/4

N2 - 1. 1.|Pigeons acclimated to darkness (24D, Ta = 22°C) or long scotophase (4L:20D, Ta = 22°C) responded to noradrenaline at Ta = 6°C as if cold-acclimated. Shivering was inhibited, and VoO2 consumption and body temperature were decreased significantly (P < <0.02). 2. 2.|The response of pigeons acclimated to light (24L, Ta = 22°C) was high but not significantly different from the control group (12L:12D, Ta = 22°C). 3. 3.|In pigeons acclimated to 4L:20D (Ta = 32°C) shivering was not completely inhibited, even for a short period. 4. 4.|A linear relationship was found between decreasing VO2 noradrenaline, which appeared to effect heat production rather than heat dissipation.

AB - 1. 1.|Pigeons acclimated to darkness (24D, Ta = 22°C) or long scotophase (4L:20D, Ta = 22°C) responded to noradrenaline at Ta = 6°C as if cold-acclimated. Shivering was inhibited, and VoO2 consumption and body temperature were decreased significantly (P < <0.02). 2. 2.|The response of pigeons acclimated to light (24L, Ta = 22°C) was high but not significantly different from the control group (12L:12D, Ta = 22°C). 3. 3.|In pigeons acclimated to 4L:20D (Ta = 32°C) shivering was not completely inhibited, even for a short period. 4. 4.|A linear relationship was found between decreasing VO2 noradrenaline, which appeared to effect heat production rather than heat dissipation.

KW - Noradrenaline

KW - acclimation

KW - oxygen-consumption

KW - photoperiod

KW - shivering

KW - thermoregulation

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U2 - 10.1016/0306-4565(79)90032-9

DO - 10.1016/0306-4565(79)90032-9

M3 - Article

AN - SCOPUS:0018420308

SN - 0306-4565

VL - 4

SP - 167

EP - 171

JO - Journal of Thermal Biology

JF - Journal of Thermal Biology

IS - 2

ER -

Photoperiodicity and the thermoregulatory response to noradrenaline in the pigeon

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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