0457 Characterization of the variation in the daily excretion of fecal constituents and digestibility predictions in beef cattle fed feedlot diets using near infrared spectroscopy

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 218-218
Author(s):  
L. J. Jancewicz ◽  
G. B. Penner ◽  
M. L. Swift ◽  
J. J. McKinnon ◽  
C. L. Waldner ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Beef Cattle ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Daily Excretion

Characterization of the variation in the daily excretion of faecal constituents and digestibility predictions in beef cattle fed feedlot diets using near-infrared spectroscopy

2016 ◽  
Vol 96 (4) ◽  
pp. 532-549 ◽  
Author(s):  
L.J. Jancewicz ◽  
G.B. Penner ◽  
M.L. Swift ◽  
J.J. McKinnon ◽  
C.L. Waldner ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Acid Detergent Lignin ◽  
Faecal Samples ◽  
Acid Detergent Fibre ◽  
Feeding Regimes ◽  
Daily Excretion ◽  
Composite Samples

Six heifers were individually housed and assigned to once (FF1) or twice (FF2) daily feeding regimes over backgrounding and finishing periods. Following adaptation, total faecal collections were conducted at 4-h intervals and at 24-h intervals over 4 d, and near-infrared spectroscopy (NIRS) was used to predict faecal organic matter (OM), starch, nitrogen (N), neutral detergent fibre (NDF), acid detergent fibre (ADF), and acid detergent lignin (ADL). At each interval, NIRS calibrations were used to estimate faecal constituents and ADL to calculate apparent (aTTD) and estimated (eTTD) total tract digestibility. Faecal dry matter (DM) (%), NDF, and ADF varied among 4-h interval samples in the backgrounding period and faecal DM, starch, NDF, ADF, and ADL in the finishing period. Faecal starch was able to predict aTTD during both feeding periods (backgrounding: R2 = 0.96, P < 0.01; finishing: R2 = 0.98, P < 0.01). The NIRS calibrations for predicting aTTD using the 4-h interval samples or the 4-d–24-h composite were least accurate for NDF and ADF. Most 4-h interval samples could be used to predict eTTD of nutrients, and aside from starch in the finishing period, there were no differences in eTTD using faecal samples collected over 4-h intervals versus those collected over 4 d. Spot faecal samples collected at any time point from multiple cattle have the potential to predict digestibility. Timing of sampling after feeding must be standardized to predict starch digestibility during the finishing period, with samples between 0–4 h and 8–16 h generating estimates of both starch concentration and digestibility that were closest to that derived from 4-d–24-h composite samples.

Near-infrared spectroscopy

ESC CardioMed ◽  
2018 ◽  
pp. 637-640
Author(s):  
Carlo Di Mario ◽  
Carlotta Sorini Dini ◽  
Serafina Valente
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Local Treatment ◽  
Atherosclerotic Plaques ◽  
High Lipid ◽  
Coronary Syndromes ◽  
St Elevation ◽  
Unstable Plaques

Near-infrared spectroscopy (NIRS) is a new intracoronary imaging technique that detects and quantifies cholesterol-rich atherosclerotic plaques. NIRS can be combined with intravascular ultrasound to provide morphological information together with a chemogram of the atherosclerotic plaques. This technique has been used for characterization of unstable plaques, showing a nearly universal presence of high lipid content in patients with ST elevation myocardial infarction or acute coronary syndromes, for prediction of embolization risk and for assessing the effects of cholesterol-lowering therapy. The main potential advantage of NIRS is the identification of vulnerable plaques at high risk, to be targeted by local treatment and more aggressive preventive measures.

Rapid noninvasive characterization of ovarian follicular atresia in cultured white sturgeon (Acipenser transmontanus) by near infrared spectroscopy

Aquaculture ◽  
2011 ◽  
Vol 315 (3-4) ◽  
pp. 290-297 ◽  
Author(s):  
Sarah A. Servid ◽  
Mariah J. Talbott ◽  
Joel P. Van Eenennaam ◽  
Serge I. Doroshov ◽  
Peter Struffenegger ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Follicular Atresia ◽  
Noninvasive Characterization

Application of Near-Infrared Spectroscopy to the Characterization of Petroleum

2017 ◽  
pp. 221-243 ◽  
Author(s):  
Patricia Araujo Pantoja ◽  
Juan López-Gejo ◽  
Claudio Augusto Oller do Nascimento ◽  
Galo Antonio Carrillo Le Roux
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared

Present and future of portable/handheld near-infrared spectroscopy in chicken meat industry

NIR news ◽  
2019 ◽  
Vol 30 (5-6) ◽  
pp. 26-29
Author(s):  
Irene Marivel Nolasco Perez ◽  
Luis Jam Pier Cruz-Tirado ◽  
Amanda Teixeira Badaró ◽  
Marciano Marques de Oliveira ◽  
Douglas Fernandes Barbin
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Food Processing ◽  
Near Infrared ◽  
Meat Products ◽  
Meat Industry ◽  
Portable Equipment ◽  
On Line ◽  
Different Characteristics

Near-infrared spectroscopy is widely applied for characterization of meat products. The improvement of handheld and portable equipment has allowed the development of on-line applications in the food processing industry. Recently, the poultry industry has benefited from the advancement of applications for identification of different characteristics, including chemical composition, identification of different parts and detection of anomalies. In this work, a review of recent applications of handheld and portable near-infrared equipment is presented, reporting the state of the art and providing insights about future applications.

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