A respirometry system designed for small ruminants.

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dc.contributorUNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO
dc.contributorUNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO
dc.contributorUNIVERSIDADE ESTADUAL JULIO DE MESQUITA FILHO
dc.contributorRAFAEL GONCALVES TONUCCI, CNPGL
dc.contributorTHIERRY RIBEIRO TOMICH, CNPGL
dc.contributorFERNANDA SAMARINI MACHADO, CNPGL
dc.contributorMARIANA MAGALHAES CAMPOS, CNPGL.
dc.creatorSILVA, C. S.
dc.creatorDIAVÃO, J.
dc.creatorMOTTA, E. F.
dc.creatorSILVA, A. S.
dc.creatorTONUCCI, R. G.
dc.creatorTOMICH, T. R.
dc.creatorMACHADO, F. S.
dc.creatorCAMPOS, M. M.
dc.date2025-08-28T15:48:36Z
dc.date2025-08-28T15:48:36Z
dc.date2025-08-28
dc.date2025
dc.date.accessioned2026-07-07T04:00:29Z
dc.descriptionThis technical note describes a small ruminant respiration chamber system designed to accurately quantify the production of carbon dioxide (CO2) and methane (CH4). The system consists of 3 open-circuit respiration chambers, flow meters, gas analyzers, and an accessible environmental control system. To validate its performance, gas recovery tests were conducted by injecting CO2 and CH4 at 4 constant flow rates: 0.4, 0.8, 1.2, and 1.6 standard liters per minute (SLPM) for CO2, and 0.16, 0.20, 0.24, and 0.28 SLPM for CH4. Each injection level was tested across the 3 chambers. The average percentage recoveries for CO2 and CH4 were 97.8% ± 1.46% for chamber 1, 101.1% ± 1.49% for chamber 2, and 104.1% ± 1.98% for chamber 3 and 98.7% ± 0.97% for chamber 1, 99.4% ± 2.06% for chamber 2, and 101.6% ± 2.90% for chamber 3, respectively, demonstrating the system’s accuracy in quantifying livestock GHG emissions from small ruminants, such as young cattle, goats, and sheep. Therefore, this system represents a viable methodology for nutritional and environmental studies with small ruminants. Future studies conducted in this facility can contribute to a better understanding of the dynamic and flow of GHG emissions in small ruminants and target measures to increase the sustainability of small ruminant production systems.
dc.identifierJDS Communications, v. 6, p. 669–674, 2025.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1178364
dc.identifierhttps://doi.org/10.3168/jdsc.2025-0755
dc.identifier.urihttp://hdl.handle.net/123456789/450419
dc.languageeng
dc.rightsopenAccess
dc.subjectCâmara respiratória
dc.subjectBovino
dc.subjectRuminante
dc.titleA respirometry system designed for small ruminants.
dc.typeArtigo de periódico

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