Abstract
The conductive heat loss from a sheep sitting on grass was measured with soil heat flux plates and an electrical model was built to study the heat loss to other substrates. The thermal resistance of the fleece on the model was estimated as 2.2 s cm −1 per cm fleece depth. The resistance found for the live sheep was 50% less, probably due to preferential heat flow from the parts of the body with little fleece covering, together with disturbance of the fleece due to breathing. The resistance of thin layers of several dry insulation materials were, per unit depth, similar in magnitude to the fleece resistance, but a six-fold reduction in resistance was observed when sawdust was wetted. The nature of the substrate and the duration of each sitting period had only a secondary effect on the rate of conduction. The measurements indicate that heat loss by conduction from a sheep living on cold, poorly-insulated ground may approach 30% of its minimum heat production.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
