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Timing of ultrasonic scanning for Welsh Mountain rams

Published online by Cambridge University Press:  20 November 2017

T. C Pritchard  and
I. Ap Dewi
T. C Pritchard
Affiliation:
School of Agriculture and Forest Sciences University of Wales, Bangor, Gwynedd, LL57 2UW
I. Ap Dewi
Affiliation:
School of Agriculture and Forest Sciences University of Wales, Bangor, Gwynedd, LL57 2UW
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Extract

Performance recording schemes for sheep flocks in the UK incorporate ultrasonic scanning to measure criteria that are linked to carcass lean content as a selection objective (Simm, 1998). In Wales, under the direction of the Welsh Sheep Strategy, fat and muscle depth has been monitored routinely in hill flocks but with a range of ram ages at scanning (Anderson, 2000; Ap Dewi, unpublished). The date of scanning is often dictated by timings of routine tasks within the flocks so there is a need to explore the impact of time of scanning on the measurements obtained. The objectives of the investigation were to study how muscle and fat depths changed over a series of scanning dates.

Type
Genetics
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 143
Copyright
Copyright © The British Society of Animal Science 2003

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References

Anderson, J. 2000. Research and Technology Transfer. In: MLC Sheep Yearbook 2000. Meat and Livestock Commission. pp 20–27 Google Scholar
Ap Dewi, I., Saatci, M. and Ulutas, Z. 2002. Genetic parameters of weights, ultrasonic muscle and fat depths, maternal effects and reproductive traits in Welsh Mountain sheep. Animal Science 74: 399–408 Google Scholar
Simm, G. 1998. Genetic Improvement of Cattle and Sheep. Farming Press Google Scholar