The effect of sucrose addition on intake of a tropical grass hay by sheep

DE Vega, A. and Poppi, D.P. (2012). The effect of sucrose addition on intake of a tropical grass hay by sheep. In: David Hopkins, Sue Hatcher and Chris Anderson, Proceedings of the Australian Society of Animal Production: Volume 29. 2nd Australian and New Zealand Societies of Animal Production Joint Conference, Lincoln, New Zealand, (578-583). 2-5 July 2012. doi:10.1071/AN11244


Author DE Vega, A.
Poppi, D.P.
Title of paper The effect of sucrose addition on intake of a tropical grass hay by sheep
Conference name 2nd Australian and New Zealand Societies of Animal Production Joint Conference
Conference location Lincoln, New Zealand
Conference dates 2-5 July 2012
Proceedings title Proceedings of the Australian Society of Animal Production: Volume 29   Check publisher's open access policy
Journal name Animal Production Science   Check publisher's open access policy
Place of Publication Collingwood, VIC, Australia
Publisher CSIRO
Publication Year 2012
Year available 2012
Sub-type Fully published paper
DOI 10.1071/AN11244
ISSN 1836-0939
1836-5787
Editor David Hopkins
Sue Hatcher
Chris Anderson
Volume 52
Issue 6-7
Start page 578
End page 583
Total pages 6
Collection year 2013
Language eng
Abstract/Summary Increasing levels of sucrose (15, 30, 45, and 60% of the total dry matter intake, DMI) were added to a Control diet of a tropical grass hay (pangola grass, Digitaria eriantha) to examine the effect on DMI and digestible organic matter intake (DOMI). A pelleted lucerne (Medicago sativa) diet provided a positive Control diet with a higher metabolisable energy intake. There were positive linear and quadratic effects of sucrose addition on DMI and DOMI, reflecting increasing values from Control to 45% sucrose, which then decreased for 60% sucrose. Intake values at 45% sucrose were equivalent to 49% (DMI) and 60% (DOMI) of those shown by animals fed on pelleted lucerne. At the same time there was a decrease in hay intake and neutral detergent fibre digestibility. Rumen concentration of butyric acid increased with sucrose addition. Eating pattern changed with increasing sucrose inclusion in that meals extended over the whole day rather than most food being consumed within 5 h as occurred with the high roughage diet. Intake of sucrose was similar for all diets by 5 h, but by 24 h high sucrose diets had resulted in a higher intake of sucrose. It was suggested that the underlying characteristics of the neutral detergent fibre present in the diet regulate intake by posing a limit, which cannot be overridden.
Keyword Intake regulation
Neutral detergent fibre
Substitution
Water-soluble carbohydrates
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes This special issue of Animal Production Science contains plenary and four-page papers submitted in Australia for the 29th Biennial Conference of the Australian Society of Animal Production which was held jointly with the 72nd Annual Conference of the New Zealand Society of Animal Production. The Second Joint Conference of the New Zealand Society of Animal Production and the Australian Society of Animal Production was held in Lincoln, New Zealand, July 2012. Papers that were submitted in New Zealand are published in the Volume 72 of the Proceedings of the New Zealand Society of Animal Production. One page papers submitted in Australia are published in the Proceedings of the 29th Biennial Conference of the Australian Society of Animal Production.

Document type: Conference Paper
Collections: School of Agriculture and Food Sciences
Official 2013 Collection
 
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