Effects of dietary lysine on growth responses of pigs to increasing doses of ractopamine
Document Type
Conference Proceeding
Publication Date
2009
Conference Title
Twelfth Biennial Conference of the Australasian Pig Science Association
Place of Publication
Cairns
ISBN
978-0-9806880-0-9
ISSN
1324 9177
Keywords
pigs, swine
Disciplines
Animal Sciences | Meat Science
Abstract
Commercial recommendations for dietary lysine specifications in diets for pigs supplemented with ractopamine (RAC) is 0.56 g available lysine/MJ digestible energy (DE; King et al., 2000). A recent study confirmed that when RAC supplemented diets are formulated to 0.56 g available lysine/MJ DE, growth rate and feed efficiency are improved (Dunshea et al., 2005), together with an increase in lean tissue deposition in both sexes, although fat deposition was reduced in boars and remained constant in gilts. The aim of this experiment was to determine whether the current dietary lysine recommendations are sufficient to optimize the response in feed efficiency (FCR), growth rate (ADG) and tissue deposition in boars and gilts offered high and low doses of RAC in diets.
Recommended Citation
Rikard-Bell, C V,
Pluske, J R,
van Barneveld, R J,
Mullan, B P,
Edwards, A C,
Gannon, N J,
Henman, D J,
and
Dunshea, F R.
(2009), Effects of dietary lysine on growth responses of pigs to increasing doses of ractopamine, Twelfth Biennial Conference of the Australasian Pig Science Association, Cairns, pp.182-182.
https://library.dpird.wa.gov.au/conf_papers/140
