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Comparison of 2 growth patterns during the growing period in fattening bulls. 3. slaughter characteristics, carcass composition and meat quality

Published online by Cambridge University Press:  24 November 2017

A. Clinquart
Affiliation:
Dpt of Nutrition, Fac. Vet. Medicine, Univ. of Liège, Sart Tilman B43 - B4000 LiègeBelgium
C. Van Eenaeme
Affiliation:
Dpt of Nutrition, Fac. Vet. Medicine, Univ. of Liège, Sart Tilman B43 - B4000 LiègeBelgium
T. Van Vooren
Affiliation:
Dpt of Hygiene and Technology, Univ. of Ghent, Wolterslaan 16 - Ghent, Belgium
J. Van Hoof
Affiliation:
Dpt of Hygiene and Technology, Univ. of Ghent, Wolterslaan 16 - Ghent, Belgium
L. Istasse
Affiliation:
Dpt of Nutrition, Fac. Vet. Medicine, Univ. of Liège, Sart Tilman B43 - B4000 LiègeBelgium
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Extract

The degree to which growth patterns are modified after a period of food restriction affects the compositional changes of the carcasses(Carstens et al., 1992), furthermore, the growth rate has a direct effect on the physical properties of meat (Fishell et al., 1985). The objective of this experiment was to evaluate the effects of a severe food restriction at a early stage of maturity on the slaughter characteristics and meat quality of Belgian Blue bulls.

Twelve Belgian Blue bulls (dual purpose type) weighing 233 kg were offered two different planes of nutrition during the growing period. Six bulls (Group-) received a restricted diet so that their average daily gain was 0.34 kg/d (Group+) during 202 days. By contrast six other bulls were given a more conventional growing diet and their average daily gain was 1.13 kg/d. Both Groups were fattened with similar diet and slaughtered when the live weight was close to 600 kg. Carcass weight was measured and killing-out proportion calculated, the composition of the carcass was estimated after dissection of ribs 7, 8, 9 removed 48 h post-mortem.

Type
Beef
Copyright
Copyright © The British Society of Animal Production 1993

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References

Carstens, G.E., Johnson, D.E., Ellenberger, M.A. and Tatum, J.D., Physical and chemical components of the empty body during compensatory growth in beef steers. J. Anim. Sci., 1991, 69:32513264.Google Scholar
Fishell, V.K., Aberle, E.D., Jedge, M.D. and Perry, T.W., Palatability and muscle properties of beef as influenced by preslaughter growth rate. J. Anim. Sci., 1985, 61:151157.Google Scholar