Publications by authors named "V Legrand-Defretin"
Article Synopsis
- - Cholecalciferol (D) and retinyl palmitate (RP) are key fat-soluble vitamins found in animal-based foods, but there’s limited understanding of how they dissolve in mixed micelles before being absorbed by the intestines.
- - Researchers studied how effectively D and RP are solubilized in micelles made from lipids and sodium taurocholate (NaTC), using surface tension and pressure measurements to analyze molecular interactions.
- - Findings show that D dissolves in micelles much more effectively than RP due to stronger interactions with NaTC and lipids, along with D's tendency to self-associate, which allows it to form more stable micelles at lower concentrations.
Although domestic cats (Felis silvestris catus) possess an otherwise functional sense of taste, they, unlike most mammals, do not prefer and may be unable to detect the sweetness of sugars. One possible explanation for this behavior is that cats lack the sensory system to taste sugars and therefore are indifferent to them. Drawing on work in mice, demonstrating that alleles of sweet-receptor genes predict low sugar intake, we examined the possibility that genes involved in the initial transduction of sweet perception might account for the indifference to sweet-tasting foods by cats.
View Article and Find Full Text PDFWe validated doubly-labelled water (DLW) by comparison to indirect calorimetry and food intake-mass balance in eight Labrador dogs (24-32 kg) over 4 d. We used several alternative equations for calculating CO2 production, based on the single- and two-pool models and used two alternative methods for evaluating the elimination constants: two-sample and multiple-sampling. In all cases the DLW technique overestimated the direct estimate of CO2 production.
View Article and Find Full Text PDFObjectives: To determine maintenance energy requirements and effect of diet on performance of racing Greyhounds.
Animals: 7 adult racing Greyhounds.
Procedure: Dogs were fed a higher fat and protein (HFP) or a lower fat and protein (LFP) diet for 8 weeks in a crossover design.