Evaluation of spectrometer type and handling procedures for prediction of herbivore diet crude protein from feces.

Fecal near infrared spectroscopy (FNIRS) has been used to estimate diet quality, and diet composition in free ranging herbivores. With adequate calibration, the technique has proven to be a precise and robust analytical tool. While FNIRS is much faster than traditional reference methods, there is a need to develop near real-time analysis of herbivore diets. Faster turnaround will facilitate: 1) producer risk management and decision making in the face of dynamic forage and climatic conditions on pasture and rangeland, and 2) sustainable grazing and conservation practices. A study was conducted to compare the calibration and validation results of FNIRS prediction models for predicting the diet dry matter crude protein (CP) concentration of cattle from fecal spectra. This study provides proof of concept for using alternate sample handling techniques in an effort to more quickly disseminate nutritional information to grazing animal managers.

Bibliographic Details

Main Authors:	PRINCE, S., BOMFIM, M. A. D., TOLLESON, D., TEDESCHI, L., ANGERER, J.
Other Authors:	STEPHEN PRINCE, Texas A&M AgriLife Research-Blackland Research and Extension Center; MARCO AURELIO DELMONDES BOMFIM, CNPC; DOUGLAS TOLLESON, University of Arizona - College of Agriculture and Life Sciences - School of Natural Resources and the Environment; LUIS TEDESCHI, Texas A&M University - College of Agriculture and Life Sciences - Department of Animal Science; JAY ANGERER, exas A&M AgriLife Research - Blackland Research and Extension Center.
Format:	Anais e Proceedings de eventos biblioteca
Language:	English eng
Published:	2019-03-15
Subjects:	Infrared spectrophotometry, Near infrared spectroscopy, FNIRS, Caatinga, Small ruminants, Ruminant nutrition, Animal nutrition, Goats, Sheep, Semiarid soils, Brazil,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107121
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