10.5680/MCPB010
Danesh Mesgaran, Sadjad
Sadjad
Danesh Mesgaran
Hellwing, Anne Louise Frydendahl
Anne Louise Frydendahl
Hellwing
Lund, Peter
Peter
Lund
Derno, Michael
Michael
Derno
Kuhla, Björn
Björn
Kuhla
Heetkamp, Marcel
Marcel
Heetkamp
Miller, Gemma
Gemma
Miller
Humphries, David
David
Humphries
Anglard, Frederic
Frederic
Anglard
Rochette, Yvanne
Yvanne
Rochette
Martin, Cécile
Cécile
Martin
Gardiner, Tom
Tom
Gardiner
Coleman, Marc
Marc
Coleman
The gas recovery test of respiratory chambers
PUBLISSO
2020
ScholarlyArticle
636 Animal Husbandry
Ruminants, Bovine, Cattle
2020-12-21
en
Creative Commons Attribution 4.0 International
Respiratory Chambers (RCs) were originally constructed with the purpose to study heat production from animals by quantifying oxygen (O2) consumption and carbon dioxide (CO2) production (initially detailed in the 18th century by Lavoisier and Leplace. Enteric methane (CH4) is measured in calorimetry studies, as CH4 is an energy loss. The RC can therefore be used to quantify the CH4 production from animals, and many new RC units have been constructed during the last decades with the main aim of measuring CH4. A set of tests needs to be established and implemented in order to identify and quantify different systemic and random uncertainties of the RC system. Knowledge about these types of uncertainties is vital for rapid elimination or appropriate correction of data, which in turn improves the accuracy of the gas exchange measurement.
The gas recovery tests, for assessing the performance of the whole RC system, can be conducted via different approaches such as continuous gas injection of CO2 or CH4 directly into the closed open-circuit chamber. We believe that a universally acceptable protocol for RC validation ought to be implemented, which would allow a more realistic comparison between the data acquired by RC systems from different research infrastructures. The following guideline has been written with the intention to generate accurate and comparable data from different European research units. This could eventually pave the way for improving our knowledge on energy metabolism and GHG emissions from cattle.
Chapter of the Living Handbook Methods in cattle physiology and behaviour – Recommendations from the SmartCow consortium
Horizon 2020
https://doi.org/10.13039/501100007601