Increasing ractopamine levels in finisher pig diets improves growth performances in light, medium and heavy gilts

Document Type

Conference Proceeding

Publication Date

2007

Conference Title

978-0-9806880-5-4

Place of Publication

Brisbane

ISBN

978-0-9806880-5-4

ISSN

1324-9177

Keywords

pigs, swine

Disciplines

Animal Sciences | Meat Science

Abstract

The agonist ractopamine (RAC) has been approved in Australia since January 2004 as a dietary ingredient to improve the production efficiency in pigs. Dose response studies have suggested that daily gain is maximized at 5 ppm RAC although carcass gain may be maximized at higher doses (Watkins et al., 1990; Armstrong et al., 2004). Also, many of the studies have been carried out with heavy slaughter weights more suitable to US than Australian and New Zealand markets. Therefore, the objective of this study was to determine the dose response to RAC in light, medium and heavy gilts.

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