Estimating fatty acid content in cow milk using mid-infrared spectrometry

in Journal of Dairy Science (2006), 89(9), 3690-3695

Potential estimation of fatty acid content in cow milk by mid-infrared spectrometry

Conference (2006, June)

Différences intra- et inter-races du profil en acides gras du lait

in 11ème Carrefour des Productions Animales (2006, January 25)

Variation in fatty acid contents of milk and milk fat within and across breeds

in Journal of Dairy Science (2006), 89(12), 4858-4865

The aim of this research was to study the potential for selection of cows with a higher nutritional quality of milk fat by studying the differences in fatty acid profiles within and across the following ... [more ▼]

The aim of this research was to study the potential for selection of cows with a higher nutritional quality of milk fat by studying the differences in fatty acid profiles within and across the following breeds: Dual Purpose Belgian Blue, Holstein-Friesian, Jersey, Montbeliarde, and non-Holstein Meuse-Rhine-Yssel type Red and White. Six hundred milk samples from 275 animals were taken from 7 herds. Several types of fatty acids in milk and milk fat were quantified using midinfrared spectrometry and previously obtained calibration equations. Statistical analyses were made using a mixed linear model with a random animal effect. The variance components were estimated by using REML. Results showed breed differences for the fatty acid profile. The repeatability estimate obtained in the present study may suggest the existence of moderate additive genetic variance for the fatty acid profile within each breed. Results also indicated variation for each analyzed milk component in the whole cow population studied. Genetic improvement of the nutritional quality of milk fat based on fatty acid profiles might be possible, and further research and development are warranted. [less ▲]

Within and across breed differences in fatty acids profiles of milk and milk fat

in Proceedings of the Bristish Society of Animal Science (2006)

Within and across breeds differences in fatty acids profiles of milk and milk fat in dairy cows.

in Proceedings of the 8th World Congress on Genetics Applied to Livestock Production (2006)

ValLait - Perspective d’évolution du contrôle laitier en Wallonie (Belgique)

in 12ièmes Recontres Recherches Ruminants, Paris, les 7 et 8 Décembre 2005 (2005, December)

ValLait est un projet qui vise à optimaliser les valorisations des données récoltées via le contrôle laitier. Ces valorisations reposent sur une régression multiple (“BP”, pour “Best Prediction”) qui ... [more ▼]

ValLait est un projet qui vise à optimaliser les valorisations des données récoltées via le contrôle laitier. Ces valorisations reposent sur une régression multiple (“BP”, pour “Best Prediction”) qui permet d’estimer les productions journalières de lait, de matières grasses et de protéines d’un animal en se basant sur différents effets comme le stade de lactation, la date de vêlage, les historiques de production du troupeau et de la population... En outre, le modèle BP permet également, dès le début de la lactation d’un animal, de prédire ses productions journalières futures. [less ▲]

Quantification of bST in milk by electrochemiluminescence: a way for detection of treated cows.

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Somatotropine bovine: mode d'action, effets zootechniques et dé&tection

Book published by IRSIA Ed. (2001)

Mutation in exon 5 of bovine prolactin gene is not associated with milk traits in Holstein bulls.

in ASAS/ADSA Joint Meeting (2000, July)