Application de la spectroscopie proche infrarouge (SPIR) dans un réseau d'analyse de terre et de conseil

(2007, October 25)

Qualité: récolte 2007: encore une récolte difficile à gérer!

in Livre Blanc: Céréales - Gembloux (2007, September 13)

Benefit of NIRS for products under protected geographical indication label : the example of the Belgian Ardenne ham.

in Abstracts of the 13th International conference on near infrared spectroscopy (2007, June)

Wheat starch variability in characteristics and rheological properties: the influence of varieties, harvest years and phytotechnique

Conference (2007, April 25)

Wheat starch variability in characteristics and rheological properties : the influence of varieties harvest years and phytotechnique.

Conference (2007, April)

Variabilité importante des caractéristiques des amidons de blés indigènes: vers une utilisation diférenciée des lots (synthèse de 4 années de récolte)

Conference given outside the academic context (2007)

Genetic variability of lactoferrin content predicted by MIR Spectrometry

Conference (2007, February 18)

Genetic variability of lactoferrin content estimated by mid-infrared spectrometry in bovine milk

in Journal of Dairy Science (2007), 90(9), 4443-4450

The effects of lactoferrin (LF) on the immune system have already been shown by many studies. Unfortunately, the current methods used to measure LF levels in milk do not permit the study of the genetic ... [more ▼]

The effects of lactoferrin (LF) on the immune system have already been shown by many studies. Unfortunately, the current methods used to measure LF levels in milk do not permit the study of the genetic variability of lactoferrin or the performance of routine genetic evaluations. The first aim of this research was to derive a calibration equation permitting the prediction of LF in milk by mid-infrared spectrometry (MIR). The calibration with partial least squares on 69 samples showed a ratio of standard error of cross-validation to standard deviation equal to 1.98. Based on this value, the calibration equation was used to establish an LF indicator trait (predicted LF; pLF) on a large number of milk samples (n = 7,690). A subsequent study of its variability was conducted, which confirmed that stage of lactation and lactation number influence the overall pLF level. Small differences in mean pLF among 7 dairy breeds were also observed. The pLF content of Jersey milk was significantly higher than that in Holstein milk. Therefore, the choice of breed could change the expected LF level. Heritability estimated for pLF was 19.7%. The genetic and phenotypic correlations between somatic cell score and pLF were 0.04 and 0.26, respectively. As somatic cell score increases in presence of mastitis, this observation seems to indicate that pLF, or a function of observed pLF, compared with expected LF might have potential as an indicator of mastitis. The negative genetic correlation (−0.36) between milk yield and pLF could indicate an undesirable effect of selection for high milk production on the overall LF level. [less ▲]

Influence de la protection fongicide, de la variété et de la date de semis sur les caractéristiques et propriétés de l'amidon de blé

in Conférence internationale sur les maladies des plantes (2006, December 05)

Starch characteristics and properties of wheat grains are slightly influenced by fungicide protection application on the crop but are mainly linked to the variety and date of sowing.

Evaluation de l'utilisation de techniques de régressions linéaires multiples pour la prédiction des caractéristiques des amidons de blé tendre à partir des analyses RVA réalisées sur moutures intégrales

Poster (2006, November 20)