A preliminary evaluation of the use of mid infrared spectroscopy to develop calibration equations for determining faecal composition, intake and digestibility in sheep

Lyons, G.; Sharma, Sweta; Aubry, Aurélie; Carmichael, Eugene; Annett, R. W.

doi:10.1016/j.anifeedsci.2016.08.014

Cited by 11 publications

(9 citation statements)

References 30 publications

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“…CrV between 0.66 and 0.81 indicating a lower accuracy that allows an approximate quantitative prediction. A similar accuracy in ash estimation from faeces was reported in literature both of dairy cattle (Decruyenaere et al 2012) and in sheep (Lyons et al 2016). On the other hand, calibrations for N-NDF, N-ADF, ADLom, EN and uNDF led to unsatisfactory results.…”

Section: Chemical and Nirs Evaluation Of Faecessupporting

confidence: 86%

“…NIRS is extensively used to analyse the composition of diets, feedstuffs, forages (Rahman et al 2015), pet food (Goi et al 2019;Goi, Manuelian, et al 2020;Goi, Simoni, et al 2020), meat (De Marchi et al 2007De Marchi 2013;Prieto et al 2017), milk and dairy products (Visentin et al 2015) in terms of DM, OM, EE, CP, starch, NDF, ADF, ADL and ash in the different cases. It was also applied on faecal samples with promising prediction of feed intake, diet quality and digestibility in different livestock species (Dixon and Coates 2009;Tran et al 2010;Decruyenaere et al 2012;Tolleson and Schafer 2014;Lyons et al 2016;N uñez-S anchez et al 2016;Johnson et al 2017;Brogna et al 2018). The NIRS digestibility prediction of DM, OM, CP, NDF, ADF, ADL and starch in faeces obtained using the total collection procedure as a reference method showed encouraging results on beef heifers and steers (Boval et al 2004;Jancewicz et al 2016;.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The use of visible/near-infrared spectroscopy to predict fibre fractions, fibre-bound nitrogen and total-tract apparent nutrients digestibility in beef cattle diets and faeces

Simoni

Goi

Marchi

et al. 2021

Italian Journal of Animal Science

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Section: Chemical and Nirs Evaluation Of Faecessupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

The use of visible/near-infrared spectroscopy to predict fibre fractions, fibre-bound nitrogen and total-tract apparent nutrients digestibility in beef cattle diets and faeces

Simoni

Goi

Marchi

et al. 2021

Italian Journal of Animal Science

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“…The determination of lignin in animal feeds and forages is important, as higher lignin content is generally associated with lower digestibility, leading to lower voluntary intakes , and reduced animal performance levels. Historically, lignin has been determined by gravimetric or spectrophotometric methods, both of which are time-consuming and costly, requiring lengthy wet chemical sample preparation techniques.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Lignin Content in Ruminant Diets and Fecal Samples Using Rapid Analytical Techniques

Lyons

Carmichael

McRoberts

et al. 2018

J. Agric. Food Chem.

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The measurement of lignin content in ruminant diet and faecal samples is important for digestibility studies, but it is typically time consuming and costly. The work reported involved correlation of traditional wet chemistry data with that from three rapid instrumental techniques, Fourier Transform Infrared spectroscopy (FTIR), Conventional Thermogravimteric Analysis (TGA) and High Resolution TGA (MaxRes TGA) to predict lignin content of diets and faeces from digestibility trials. Calibration and performance data indicated that the FTIR model was acceptable for screening whilst the Conventional and MaxRes TGA predictions were of high accuracy for quantitative analysis. Cross validation and model performance data revealed that MaxRes TGA provided the best performing predictive model. This work showed that MaxRes TGA can accurately predict lignin content in ruminant diet and faecal samples with distinct advantages over traditional wet chemistry, namely the requirement for small sample size, ease of sample preparation, speed of analysis and high sample throughput at considerably lower cost.

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“…This resulted in the H. contortus egg spectra resembling the spectra of typical animal faeces previously published. 30,31 Therefore, spectra associated with faeces were manually subtracted from the dried H. contortus egg data. Due to the difference in moisture content, absorbance for dried H. contortus eggs was higher than that observed for dried clean faeces.…”

Section: Resultsmentioning

confidence: 99%

Detection of Haemonchus contortus nematode eggs in sheep faeces using near and mid-infrared spectroscopy

Kho

Fernandes

Kotze

et al. 2020

Journal of Near Infrared Spectroscopy

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This paper reports the use of near infrared and mid-infrared spectroscopy to detect the presence and quantity of eggs of the gastrointestinal nematode Haemonchus contortus in sheep faeces. Haemonchus contortus eggs were quantified in dried, finely ground sheep faeces and in moist, coarsely ground faeces using near infrared and mid-infrared bench top spectrometers and a portable near infrared spectrometer. When Haemonchus contortus eggs were presented without faecal medium, it was found that the wavelength region of 1880–2100 nm was most important for detection. Broad classes of chemical properties found in the near infrared region were identified for dried Haemonchus contortus eggs using a mid-infrared spectrometer. However, when Haemonchus contortus eggs were mixed into the complex matrix of sheep faeces, the development of a robust calibration model for egg detection proved to be challenging (R2 < 0.47). The reliability of this method, if used for the detection of Haemonchus contortus eggs in the field, may be further limited by variations in egg species, faecal moisture content, faecal composition and particle size. Nevertheless, this is the first report identifying near infrared bands for Haemonchus contortus eggs and provides valuable information for future studies towards a spectroscopy-based method for detection of gastrointestinal nematodes.

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A preliminary evaluation of the use of mid infrared spectroscopy to develop calibration equations for determining faecal composition, intake and digestibility in sheep

Cited by 11 publications

References 30 publications

The use of visible/near-infrared spectroscopy to predict fibre fractions, fibre-bound nitrogen and total-tract apparent nutrients digestibility in beef cattle diets and faeces

The use of visible/near-infrared spectroscopy to predict fibre fractions, fibre-bound nitrogen and total-tract apparent nutrients digestibility in beef cattle diets and faeces

Prediction of Lignin Content in Ruminant Diets and Fecal Samples Using Rapid Analytical Techniques

Detection of Haemonchus contortus nematode eggs in sheep faeces using near and mid-infrared spectroscopy

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