Triacylglycerols and Polar Lipids in Cow and Goat Milk are Differentially Affected by Various Lipid Supplemented Diets
| Autor: | H. Fougère, P. Le Faouder, Laurence Bernard, Carole Delavaud, Justine Bertrand-Michel |
|---|---|
| Přispěvatelé: | Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), CHU de Québec–Université Laval, Université Laval [Québec] (ULaval), Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
polar lipids
ruminant Industrial and Manufacturing Engineering 03 medical and health sciences Animal science Latin square Ruminant Dry matter lipid supplement 030304 developmental biology 2. Zero hunger chemistry.chemical_classification 0303 health sciences milk fat plasticity biology 0402 animal and dairy science food and beverages Lipid metabolism 04 agricultural and veterinary sciences General Chemistry Polar lipids biology.organism_classification triacylglycerol profile 040201 dairy & animal science chemistry Composition (visual arts) [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition Corn oil Food Science Biotechnology Polyunsaturated fatty acid |
| Zdroj: | European Journal of Lipid Science and Technology European Journal of Lipid Science and Technology, Wiley-VCH Verlag, 2021, 123 (10), pp.2100009. ⟨10.1002/ejlt.202100009⟩ |
| ISSN: | 1438-7697 1438-9312 |
| Popis: | This study characterizes milk triacylglycerol (TAG) and polar lipid (PL) fractions from cows and goats fed various lipid supplements modulating milk fat content. Twelve Holstein cows and 12 Alpine goats, at 86 ± 24.9 and 61 ± 1.8 days in milk, respectively, were allocated to one of 4 groups to receive diets supplemented with either corn oil [5% dry matter intake (DMI)] plus wheat starch (COS), marine algae powder (MAP; 1.5% DMI) or hydrogenated palm oil (HPO; 3% DMI), or a no-added-lipid control diet (CTL), according to a 4 × 4 Latin square design with 28-d experimental periods. Milk TAG and polar lipid contents were determined by liquid chromatography-mass spectrometry. Multivariate analysis and ANOVA demonstrated major between-species differences in diet effects. In cows, COS specifically increased TAG 54:3 and 54:4 associated with milk fat depression (MFD), and increased the sum of phosphatidylcholines and phosphatidylinositols (PI). In addition to causing a MFD, MAP diet increased long-chain polyunsaturated TAG in both species, with higher magnitude in cows than in goats, and decreased the sum of PI in goats. HPO increased TAG 52:1 and the sum of PI in cows, but is not discriminated from CTL by its TAG composition whatever the species. Practical applications: Feed strategies can quickly and efficiently modulate the ruminant milk fat production and composition to improve nutritional quality for consumers. Certain starch-rich diets supplemented with polyunsaturated fatty acids (PUFA)-rich vegetable oils and diets supplemented with marine products (long-chain PUFA) reduce milk fat secretion and modify the milk fatty acids profile in cows, but not—or less so—in goats. Advanced analysis of both the TAG and polar lipid fractions of milk fat was required to unravel these differences in lipid metabolism between cows and goats fed various lipid-supplemented diets. This study brings new insight on using nutritional strategies to control milk lipid composition according to ruminant species. This article is protected by copyright. All rights reserved |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text