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Effect of supplementation with methionine during fattening of Belgian Blue cull cows of three different ages on animal performance, carcass composition and meat quality

Published online by Cambridge University Press:  20 November 2017

J.L. Hornick ,
M. Evrard ,
A. Clinquart ,
C. Van Eenaeme  and
L. Istasse
J.L. Hornick
Affiliation:
Nutrition and Technology, University of Liège, Sart Tilman B43, 4000 Liège, Belgium
M. Evrard
Affiliation:
Nutrition and Technology, University of Liège, Sart Tilman B43, 4000 Liège, Belgium
A. Clinquart
Affiliation:
Technology, University of Liège, Sart Tilman B43, 4000 Liège, Belgium
C. Van Eenaeme
Affiliation:
Nutrition and Technology, University of Liège, Sart Tilman B43, 4000 Liège, Belgium
L. Istasse
Affiliation:
Nutrition and Technology, University of Liège, Sart Tilman B43, 4000 Liège, Belgium
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Extract

By contrast to bulls, fattening cull cows deposite large amounts of fat in the carcass. Furthermore, the live weight gain are low. Methionine (M) is a limiting amino acid for muscle growth in Belgian blue cattle (Hornick et al., 1997). Supplementation with M in fattening diets for cattle could therefore improve weight gain or feed conversion ratio. An experiment was thus conducted in Belgian Blue cull cows in order to assess the effects of M in fattening diet on characteristics of tissue deposition.

Twenty four Belgian Blue females from double muscled type -8 heifers (H), 8 cows with 2 calving (C2) and 8 cows with 4 calving (C4)- were used. In each group, 4 animals received a control fattening diet (M0) based on maize silage complemented with cereals, sugar beet pulp and protein from vegetable origin (10.3 MJ ME and 160 g/ kg CP per kg DM), while 4 other received similar diet but with 3.5 g of rumen protected methionine (M1).

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 55
Copyright
Copyright © The British Society of Animal Science 1999

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References

Hornick, J.L., Van Eenaeme, C., Diez, M., Minet, V., Istasse, L. 1997. Comparison of hindquarter metabolite uptakes in Belgian Blue double-muscled bulls at maintenance or during fattening. J. Anim. Sci. 75 : 3331–3341.Google Scholar