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Ultrasonography as a predicting tool for carcass traits of young Nellore crossbred bulls in a feedlot system

  • L. Suguisawa* (a1), H. N. Oliveira (a1), W. R. S. Mattos (a2), A. A. Souza (a1), M. D. B. Arrigoni (a1) and A. C. Silveira (a1)...

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Ultrasound technology provides a oportunity to quickly and economically estimate carcass atributes on the live animal (Brethour, 2000). In general, this technology has been used to detect variation for fat depth and ribeye area (longissimus dorsi muscle) in performance tested yearling bulls at several countries. In the present study, real time ultrasonography was used to predict the ribeye area (RA) and the subcutaneous fat thickness (FT) in Nellore crossbred.

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References

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Bullock, K. D, Bertrand, J. K., Benyshek, L. L.., Willians, S. E., Lust, D. G. 1991.Comparison of real-time ultrasound and other live measures to carcass measures as predictors of beef cow energy stores. Journal of Animal Science 69: 39083916.
Brethour, J. R. Using serial ultrasound measures to generate models of marbling and backfat thickness changes in feedlot cattle. 2000. Journal of Animal Science 78: 20552061.
Herring, W. O., Miller, D. C., Bertrand, J. K., Benyshek, L. L. Evaluation of machine, technician, and interpreter effects on ultrasonic measures of backfat and longissimus muscle area in beef cattle.1994. Journal of Animal Science 72: 22162226.
Perry, T. C., Fox, D. G. Predicting carcass composition and individual feed requirement in live cattle widely varying in body size. 1997. Journal of Animal Science 75: 300307.
Silva, S. L., Leme, P. R., Figueiredo, L. G. G., Pereira, A. S. C., Putrino, S. M. Correlações entre características de carcaça obtidas in vivo por ultra-sonografia e na carcaça post mortem em novilhos Nelore. 2001. In: Reunião Da Sociedade Brasileira De Zootecnia, Piracicaba: SBZ, 38: 12061208.

Ultrasonography as a predicting tool for carcass traits of young Nellore crossbred bulls in a feedlot system

  • L. Suguisawa* (a1), H. N. Oliveira (a1), W. R. S. Mattos (a2), A. A. Souza (a1), M. D. B. Arrigoni (a1) and A. C. Silveira (a1)...

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