Laying hen responses to acute heat stress and carbon dioxide supplementation: I. Blood gas changes and plasma lactate accumulation

K. W. Koelkebeck; T. W. Odom

doi:10.1016/0300-9629(94)90358-1

Laying hen responses to acute heat stress and carbon dioxide supplementation: I. Blood gas changes and plasma lactate accumulation

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

Abstract

Exposure to heat stress lowered partial pressure of arterial blood carbon dioxide (paCO₂), arterial blood bicarbonate ion (HCO^-₃), but increased arterial blood pH (pHa) and plasma lactate (LA). Increasing ambient carbon dioxide (CO₂) to 1.5% increased paCO₂ from hypocapnic levels to normocapnic levels, raised HCO₃^- lowered pHa and plasma LA to pre-heat stress levels. Following CO₂ treatment, respiratory alkalosis conditions returned. It was evident in this study that increasing ambient chamber CO₂ to 1.5% was effective in ameliorating acid-base disturbances and reducing elevated levels of plasma LA which normally develops when laying hens are subjected to an acute heat stress exposure.

Original language	English (US)
Pages (from-to)	603-606
Number of pages	4
Journal	Comparative Biochemistry and Physiology -- Part A: Physiology
Volume	107
Issue number	4
DOIs	https://doi.org/10.1016/0300-9629(94)90358-1
State	Published - Apr 1994
Externally published	Yes

Keywords

Carbon dioxide supplementation
Heat stress
Plasma lactate

ASJC Scopus subject areas

Physiology

Online availability

10.1016/0300-9629(94)90358-1

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abstract = "Exposure to heat stress lowered partial pressure of arterial blood carbon dioxide (paCO2), arterial blood bicarbonate ion (HCO-3), but increased arterial blood pH (pHa) and plasma lactate (LA). Increasing ambient carbon dioxide (CO2) to 1.5% increased paCO2 from hypocapnic levels to normocapnic levels, raised HCO3- lowered pHa and plasma LA to pre-heat stress levels. Following CO2 treatment, respiratory alkalosis conditions returned. It was evident in this study that increasing ambient chamber CO2 to 1.5% was effective in ameliorating acid-base disturbances and reducing elevated levels of plasma LA which normally develops when laying hens are subjected to an acute heat stress exposure.",

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T2 - I. Blood gas changes and plasma lactate accumulation

AU - Koelkebeck, K. W.

AU - Odom, T. W.

PY - 1994/4

Y1 - 1994/4

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AB - Exposure to heat stress lowered partial pressure of arterial blood carbon dioxide (paCO2), arterial blood bicarbonate ion (HCO-3), but increased arterial blood pH (pHa) and plasma lactate (LA). Increasing ambient carbon dioxide (CO2) to 1.5% increased paCO2 from hypocapnic levels to normocapnic levels, raised HCO3- lowered pHa and plasma LA to pre-heat stress levels. Following CO2 treatment, respiratory alkalosis conditions returned. It was evident in this study that increasing ambient chamber CO2 to 1.5% was effective in ameliorating acid-base disturbances and reducing elevated levels of plasma LA which normally develops when laying hens are subjected to an acute heat stress exposure.

KW - Carbon dioxide supplementation

KW - Heat stress

KW - Plasma lactate

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Laying hen responses to acute heat stress and carbon dioxide supplementation: I. Blood gas changes and plasma lactate accumulation

Abstract

Keywords

ASJC Scopus subject areas

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