Application of faecal near infrared spectroscopy to manage the nutrition and productivity of grazing ruminants

Dixon, R. M. and Coates, D. B. (2015). Application of faecal near infrared spectroscopy to manage the nutrition and productivity of grazing ruminants. In: A. R. Evangelista, C. L. S. Avila, D. R. Casagrande, M. A. S. Lara and T. F. Bernardes, International Conference on Forages in Warm Climates: Proceedings of the 1st International Conference on Forages in Warm Climates. First International Conference on Forages in Warm Climates, Lavras, Brazil, (207-230). 1-3 June 2015.

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Name Description MIMEType Size Downloads
Author Dixon, R. M.
Coates, D. B.
Title of paper Application of faecal near infrared spectroscopy to manage the nutrition and productivity of grazing ruminants
Conference name First International Conference on Forages in Warm Climates
Conference location Lavras, Brazil
Conference dates 1-3 June 2015
Proceedings title International Conference on Forages in Warm Climates: Proceedings of the 1st International Conference on Forages in Warm Climates
Place of Publication Lavras, Brazil
Publication Year 2015
Sub-type Fully published paper
Editor A. R. Evangelista
C. L. S. Avila
D. R. Casagrande
M. A. S. Lara
T. F. Bernardes
Start page 207
End page 230
Total pages 14
Formatted Abstract/Summary
Near infrared reflectance spectroscopy measurements of faeces (F.NIRS) can measure the concentrations of faecal constituents such as nitrogen (N) and fibre fractions. Because much of the NIR spectral information of diet is retained despite passage through the gastrointestinal tract and digestion, F.NIRS can also directly estimate many diet constituents, including total N, fibre fractions, digestibility and some plant groups (e.g. grasses vs legumes). F.NIRS can be used under some circumstances to estimate diet attributes such as voluntary intake and liveweight change, but it is difficult to encompass animal effects (e.g. maturity, lactation), pasture availability or mineral deficiencies. Application of F.NIRS, especially in conjunction with other measurements (e.g. pasture evaluation, metabolizable energy intake calculated from liveweight change, microbial protein synthesis) can provide valuable and reliable information about the diet selected and nutritional status of grazing ruminants. Applications and examples where F.NIRS has been used to measure the nutritional status of grazing cattle are described. F.NIRS can be applied to routinely and economically measure the nutrient intakes of grazing ruminants, and such information used to guide herd management.
Keyword Grazing ruminants
Nutrient intake
NIRS
Ruminant production
Q-Index Code EX
Institutional Status Non-UQ

Document type: Conference Paper
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Fri, 01 Apr 2016, 17:05:10 EST by Melissa Rowan on behalf of Qld Alliance for Agriculture and Food Innovation