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Dietary betaine and ractopamine have additive effects on lean tissue deposition in restrictively-fed gilts

Published online by Cambridge University Press:  21 November 2017

F. Dunshea ,
M. Mottram  and
G. Partridge
F. Dunshea*
Affiliation:
The University of Melbourne, Parkville, Victoria, Australia
M. Mottram
Affiliation:
Feedworks Pty Ltd, Romsey, Victoria, Australia
G. Partridge
Affiliation:
Danisco Animal Nutrition, Marlborough, Wiltshire, SN8 1XN, United Kingdom
*
Email:fdunshea@unimelb.edu.au
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Extract

Dietary ractopamine supplementation dramatically increases the rate of carcass lean deposition, with the lean tissue responses most evident at ad libitum feed intakes (Dunshea et al. 1998). Dietary betaine can improve growth by reducing maintenance requirements, with the greatest responses generally occurring when DE is limiting. For example, dietary betaine stimulated lean tissue deposition in boars consuming 80% but not 100%of ad libitum (Suster et al. 2004). Importantly, the effects of betaine were additive with effects of porcine somatotropin the restrictively-fed boars. Therefore, the aim of the present study was to investigate the interactions between dietary ractopamine and betaine on growth performance and carcass characteristics in restrictively-fed finisher pigs.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 86
Copyright
Copyright © The British Society of Animal Science 2008

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References

Dunshea, F.R., Eason, P.J., King, R.H. and Campbell, R.G. 1998. Australian Journal of Agricultural Research 49, 565–574.Google Scholar
Suster, D., Leury, B.J., Ostrowska, E., Butler, K.L., Kerton, D.J., Wark, J.D. and Dunshea, F.R. 2003. Livestock Production Science 84, 231–242.CrossRefGoogle Scholar
Suster, D., Leury, B.J., King, R.H., Mottram, M. and Dunshea, F.R. 2004 Australian Journal of Agricultural Research 55, 983–990.Google Scholar
Dunshea, F.R. 2005. Australian Journal of Experimental Agriculture 49, 565–574.Google Scholar