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The use of a danscanner ultrasonic machine to predict the body composition of Hereford bulls

Published online by Cambridge University Press:  02 September 2010

J. C. Alliston
J. C. Alliston
Affiliation:
ARC Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
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Abstract

Ultrasonic measurements, using a Danscanner, were taken of the m longissimus dorsi and overlying fat at the 10th and 13th ribs, and 3rd lumbar vertebra, of 50 Hereford bulls with ages ranging from 400 to 600 days, just prior to slaughter and side dissection.

The analysis adjusted the data for live weight and day of slaughter, and the precision of carcass lean and fat prediction was examined. The standard deviations of total fat and lean in the carcass at constant live weight were 40 and 33 g/kg respectively.

The best single measurement of fat depth for predicting fat proportion was fat depth taken 125 mm from the midline at the 13th rib (residual s.d. = 21·8g/kg). The best combined predictors of both total fat and lean proportions in the side were fat depth 125 mm from the midline at the 13th rib, fat depth 75 mm from the midline at the 3rd lumbar vertebra, and fat area at the 10th and 13th ribs, and 3rd lumbar vertebra, with residual s.d. of 20·5 and 19·6 g/kg for fat and lean proportions respectively.

The results confirm that ultrasonic scanning is now able to give a useful indication of the body composition of live cattle.

Type
Research Article
Information
Animal Production , Volume 35 , Issue 3 , December 1982 , pp. 361 - 365
Copyright
Copyright © British Society of Animal Science 1982

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References

REFERENCES

Alliston, J. C. and Hinks, C. E. 1981. A note on the use of the 'Danscanner‘for prediction of the composition of a sample joint from beef cattle. Anim. Prod. 32: 345–347.Google Scholar
Andersen, B. B. 1975. Recent experimental development in ultrasonic measurement of cattle. Livestock Prod. Sci. 2: 137–146.CrossRefGoogle Scholar
Andersen, B. B., Busk, H., Chadwick, J. P., Cuthbertson, A., Fursey, G. A. J., Jones, D. W., Lewin, P., Miles, C. A. and Owen, M. G. 1981. Ultrasonic techniques for describing carcass characteristics in live cattle. Commission of the European Community, Beef Research Programme. EUR 7640 EN (Mimeograph).Google Scholar
Cuthbertson, A., Harrington, G. and Smith, R. J. 1972. Tissue separation—to assess beef and lamb variation. Proc. Br. Soc. Anim. Prod. (New Ser.) 1: 113–122.Google Scholar
Kempster, A. J., Cuthbertson, A., Jones, D. W. and Owen, M. G. 1981. Prediction of body composition of live cattle using two ultrasonic machines of differing complexity: a report of four separate trials. J. agric. Sci., Camb. 96: 301–307.CrossRefGoogle Scholar
Kempster, A. J., and Owen, M. G. 1981. A note on the accuracy of an ultrasonic technique for selecting cattle of different breeds for slaughter at equal fatness. Anim. Prod. 32: 113–115.Google Scholar
King, J. W. B. 1978. The ABRO Hereford Herd. Proc. Winter Conf., Camb. Br. Cattle Breed. Club Dig., No. 33, pp. 39–42.Google Scholar
Miles, C. A. and Fursey, G. A. J. 1974. A note on the velocity of ultrasound in living tissue. Anim. Prod. 18: 93–96.Google Scholar
Miles, C. A., Pomeroy, R. W. and Harries, J. M. 1972. Some factors affecting reproducibility in ultrasonic scanning of animals. 1. Cattle. Anim. Prod. 15: 239–249.Google Scholar
Truscott, T. G., Tulloh, N. M. and Whitfield, D. E. 1980. A seriatim study, using ultrasonic measurements, of fat depth and m. longissimus area in Hereford bulls, steers and heifers under grazing conditions. Anim. Prod. 30: 199–209.Google Scholar
Tulloh, N. M., Truscott, T. G. and Lang, C. P. 1973. An evaluation of the “Scanogram” for predicting carcass composition of live cattle. A report submitted to the Australian Meat Board. Rep. Sch. Agric. For., Univ. Melb. (Mimeograph).Google Scholar
Wallace, M. A., Stouffer, J. R. and Westervelt, R. G. 1977. Relationships of ultrasonic and carcass measurements with retail yield in beef cattle. Livestock Prod. Sci. 4: 153–164.CrossRefGoogle Scholar
Williams, D. R. and Bergstrom, P. L. 1980. Anatomical jointing, tissue separation and weight recording. EEC standard method for beef. EUR 6878 EN (Mimeograph).Google Scholar