The avian egg: air-cell gas tension, metabolism and incubation time

H. Rahn; C. V. Paganelli; A. Ar

doi:10.1016/0034-5687(74)90079-6

The avian egg: air-cell gas tension, metabolism and incubation time

H. Rahn^*, C. V. Paganelli, A. Ar

^*Corresponding author for this work

SUNY Buffalo

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

137 Scopus citations

Abstract

The O₂ and CO₂ tensions in the air cell of incubating eggs just pripr to the pipping stage were analyzed in nine species of birds. These appear to be very similar and average 104 and 37 torr, respectively, for O₂ and CO₂. The oxygen conductance of the egg shell for each species was calculated from the water vapor conductance previously established, which allows one to calculate the oxygen consumption of the egg as the product of O₂ conductance and ΔP_O₂, across the egg shell. The oxygen uptake of the eggs at this stage of development is proportional to the egg weight raised to the power O.78. A previously derived relationship shows that the incubation time is proportional to the egg weight raised to the power O.22. Combining these two weight functions, one obtains a general relationship between metabolic rate and incubation time; namely in different species of birds that have the same egg weight the natural incubation period is inversely related to the metabolic rate or the egg shell gas conductance.

Original language	English
Pages (from-to)	297-309
Number of pages	13
Journal	Respiration Physiology
Volume	22
Issue number	3
DOIs	https://doi.org/10.1016/0034-5687(74)90079-6
State	Published - Dec 1974
Externally published	Yes

Keywords

Air-cell P, P
Avian eggs
Egg metabolism
Egg shell conductance
Incubation time

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10.1016/0034-5687(74)90079-6

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title = "The avian egg: air-cell gas tension, metabolism and incubation time",

abstract = "The O2 and CO2 tensions in the air cell of incubating eggs just pripr to the pipping stage were analyzed in nine species of birds. These appear to be very similar and average 104 and 37 torr, respectively, for O2 and CO2. The oxygen conductance of the egg shell for each species was calculated from the water vapor conductance previously established, which allows one to calculate the oxygen consumption of the egg as the product of O2 conductance and ΔPO2, across the egg shell. The oxygen uptake of the eggs at this stage of development is proportional to the egg weight raised to the power O.78. A previously derived relationship shows that the incubation time is proportional to the egg weight raised to the power O.22. Combining these two weight functions, one obtains a general relationship between metabolic rate and incubation time; namely in different species of birds that have the same egg weight the natural incubation period is inversely related to the metabolic rate or the egg shell gas conductance.",

keywords = "Air-cell P, P, Avian eggs, Egg metabolism, Egg shell conductance, Incubation time",

author = "H. Rahn and Paganelli, {C. V.} and A. Ar",

year = "1974",

month = dec,

doi = "10.1016/0034-5687(74)90079-6",

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journal = "Respiration Physiology",

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T2 - air-cell gas tension, metabolism and incubation time

AU - Rahn, H.

AU - Paganelli, C. V.

AU - Ar, A.

PY - 1974/12

Y1 - 1974/12

N2 - The O2 and CO2 tensions in the air cell of incubating eggs just pripr to the pipping stage were analyzed in nine species of birds. These appear to be very similar and average 104 and 37 torr, respectively, for O2 and CO2. The oxygen conductance of the egg shell for each species was calculated from the water vapor conductance previously established, which allows one to calculate the oxygen consumption of the egg as the product of O2 conductance and ΔPO2, across the egg shell. The oxygen uptake of the eggs at this stage of development is proportional to the egg weight raised to the power O.78. A previously derived relationship shows that the incubation time is proportional to the egg weight raised to the power O.22. Combining these two weight functions, one obtains a general relationship between metabolic rate and incubation time; namely in different species of birds that have the same egg weight the natural incubation period is inversely related to the metabolic rate or the egg shell gas conductance.

AB - The O2 and CO2 tensions in the air cell of incubating eggs just pripr to the pipping stage were analyzed in nine species of birds. These appear to be very similar and average 104 and 37 torr, respectively, for O2 and CO2. The oxygen conductance of the egg shell for each species was calculated from the water vapor conductance previously established, which allows one to calculate the oxygen consumption of the egg as the product of O2 conductance and ΔPO2, across the egg shell. The oxygen uptake of the eggs at this stage of development is proportional to the egg weight raised to the power O.78. A previously derived relationship shows that the incubation time is proportional to the egg weight raised to the power O.22. Combining these two weight functions, one obtains a general relationship between metabolic rate and incubation time; namely in different species of birds that have the same egg weight the natural incubation period is inversely related to the metabolic rate or the egg shell gas conductance.

KW - Air-cell P, P

KW - Avian eggs

KW - Egg metabolism

KW - Egg shell conductance

KW - Incubation time

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ER -

The avian egg: air-cell gas tension, metabolism and incubation time

Abstract

Keywords

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