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Responses of finisher boars and gilts to dietary lysine and ractopamine

Rikard-Bell, C.V., Pluske, J.R.ORCID: 0000-0002-7194-2164, van Barneveld, R.J., Mullan, B.P., Edwards, A.C., Gannon, N.J., Henman, D.J. and Dunshea, F.R. (2009) Responses of finisher boars and gilts to dietary lysine and ractopamine. In: Manipulating Pig Production XII. Proceedings of the 12th Australasian Pig Science Association (APSA) Biennial Conference, 22 - 25 November, Werribee, Australia p. 71.

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The minimum total lysine requirement for pigs between 80 and 120 kg has been reported as 0.65g/kg (National Research Council, 1998) whilst the current recommended lysine requirements for pigs fed a diet supplemented with ractopamine (RAC) is 0.70g/kg of total lysine (approximately 0.56g available lysine/MJ digestible energy (DE)). More recently (Rikard-Bell et al., 2009) reported that the improvements in growth performance elicited by RAC were similar for pigs offered diets with 0.56 or 0.65 g available lysine/MJ DE. The aim of this experiment was to investigate the performance responses of finisher pigs offered a wider range of dietary lysine levels and three levels of dietary RAC.

Item Type: Conference Paper
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Publisher: Australasian Pig Science Association
Copyright: © 2009 Australasian Pig Science Association (Inc)
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