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The utilization of a commercial rapeseed meal product (RaPass) as a protein supplement for lactating dairy cows

Published online by Cambridge University Press:  20 November 2017

E. C. C. de Sousa Lamy ,
S. P. Williams ,
M. B. Salawu  and
C. J. Hammond
E. C. C. de Sousa Lamy
Affiliation:
Dep. Zootecnia, Universidade de Evora, Apartado 94, 7001 Évora Codex, PORTUGAL
S. P. Williams
Affiliation:
Institute of Rural Studies, University of Wales, Aberystwyth SY23 3AL, UK
M. B. Salawu
Affiliation:
Institute of Rural Studies, University of Wales, Aberystwyth SY23 3AL, UK
C. J. Hammond
Affiliation:
UM Feeds Marketing, Gibraltar House, Crown Square, First Avenue, Burton upon Trent DE14 2WE, UK
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Extract

Rapeseed meal is a common protein supplement in ruminant diets that is characterized by high rumen protein degradability (Bertilsson et al., 1994; Vanhatalo et al., 1995). Appropriate treatment can however reduce ruminal protein degradability and increase the efficiency of protein utilization. RaPass (UM Feeds Marketing, Burton on Trent, Staffs, UK) is a commercial rapeseed meal product that made using the Maillard reaction. This is the non-enzymatic browning reaction between proteins and reducing sugars that protects protein from rumen degradation. Release of the protein at abomasal pH allows the peptide chains to be digested at an efficiency similar to that of untreated rapeseed meal (Moss et al 2000). Cows fed rapeseed meal that was treated to increase the rumen undegradable protein (RUP) content have been reported to perform better than those fed untreated rapeseed meal (Bertilsson et al., 1994). This study evaluated the potential of using RaPass as a protein supplement in dairy cow rations.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 204
Copyright
Copyright © The British Society of Animal Science 2001

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References

Bertilsson, J., Gohda, H. L. and Lindberg, J. E. 1994. Effects of level and degradability of rapeseed meal in rations for dairy cows 1. Animal performance. Acta Agriculturae Scandinavica 44: 222–229.CrossRefGoogle Scholar
Moss, A. R., Metcalf, J. A. and Givens, D. I. 2000. Value of ADIN as a measure of unavailable Nitrogen in treated rapeseed meal. Proceedings of the British Society of Animal Science 2000. 47 Google Scholar
Vanhatalo, A., Aronen, I. and Varvikko, T. 1995. Intestinal nitrogen digestibility of heat moisture treated rapeseed meals as assessed by the mobile bag method in cows. Animal Feed Science and Technology 55: 139–152.Google Scholar