Using Faecal Near Infrared Reflectance Spectroscopy (F.NIRS) To Measure The Proportion Of Grass In The Diet Selected By Cattle Grazing Tropical Pastures

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Author: 
Coates, D.B.
Dixon, R.M.
Sullivan, M.
Publisher: 
The Australian Rangeland Society
Publication Year: 
2006
Description: 
A F.NIRS calibration equation was developed for predicting the 13C ratio in faeces, and therefore the proportions of C4 tropical grasses to C3 non-grass plants (primarily forbs, legumes and browses) selected by grazing cattle. This calibration equation was used to measure seasonal profiles of dietary non-grass intake for a NE Qld speargrass site with and without introduced pasture legume, and for a NW Qld Mitchell grass site. In addition, results are presented for cattle grazing savannahs in the monsoonal tropics of central, northern Australia. Non-grass can form a substantial component of the diet even where there is ample grass on offer and may contribute substantially to diet protein content during the dry season.
Conference Name: 
Australian Rangeland Society 14th Biennial Conference
Conference Date: 
Sunday, September 3, 2006
Resource Type: 
Text
Document Type: 
Conference Paper
Non-AGROVOC Keywords: 
Additional Information: 
3 - 7 September, 2006 Renmark, South Australia ISSN 1323 660
Australian Rangeland Society

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