An open-circuit hood system for gaseous exchange measurements in small ruminants

Takahashi J., Chaudhry A.S., Beneke R.G. and Young B.A. (1999) An open-circuit hood system for gaseous exchange measurements in small ruminants. Small Ruminant Research, 32 1: 31-36. doi:10.1016/S0921-4488(98)00163-1


Author Takahashi J.
Chaudhry A.S.
Beneke R.G.
Young B.A.
Title An open-circuit hood system for gaseous exchange measurements in small ruminants
Journal name Small Ruminant Research   Check publisher's open access policy
ISSN 0921-4488
Publication date 1999-03-08
Sub-type Article (original research)
DOI 10.1016/S0921-4488(98)00163-1
Volume 32
Issue 1
Start page 31
End page 36
Total pages 6
Language eng
Subject 1103 Clinical Sciences
3400 Veterinary
Abstract The description of an open-circuit hood system to measure gaseous exchange in small ruminants is reported along with the equations and constants needed for automatic calculations on a computer. The performance of the system was evaluated by using a series of methanol combustion tests and respiration trials on sheep eating Rhodes grass (Chloris gayana) or Lucerne (Medicago sativa) chaffs. The total dead space was 82 1 including 72 1 of hood capacity which gave a lag-time for expired gas analyses of 50 s when the hood was ventilated at 100 1 min. The measured rate of oxygen consumption was 102±1.1% of the value as confirmed by the methanol combustion tests. Preliminary animal evaluation tests showed that the postprandial profiles of gaseous exchange in sheep could be readily measured by using the open-circuit hood system. Moreover, the pattern of gaseous exchange was dependent upon the type of forage being consumed by the sheep.
Keyword Methane
Open-circuit hood system
Oxygen
Respiratory gases
Small ruminants
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Sat, 09 Jul 2016, 16:45:25 EST by System User