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Effect of Diet Supplementation with the Mycotoxin Binder Montmorillonite on the Bioavailability of Vitamins in Dairy Cows
Kihal, Abdelhacib (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Marquès, Cristina (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Rodríguez-Prado, María (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
José Cunilleras, Eduard (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)
Calsamiglia, Sergio (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Data: 2022
Resum: The objective of this study was to determine the effect of the mycotoxin binder montmorillonite (MMT) supplemented in the diet of dairy cows on the bioavailability of vitamins A, D, E, B1 and B6. Six multiparous Holstein-Friesian cows were used in a crossover design with two periods. Treatments were a control diet with or without MMT. Vitamins were infused individually into the abomasum through the ruminal cannula. Blood samples were collected from the jugular vein at 0, 1, 2, 3, 4, 6, 9, 12, 24 and 48 h after the administration of each vitamin. Results showed that vitamin A reached maximal concentration (Tmax) at 5. 3 h after dosing, the maximal concentration (Cmax) was 1. 2 times higher than the basal concentration (Cbasal), and the area under the curve (AUC) was 739 arbitrary units. Vitamin B6 reached the Tmax at 13 h after dosing, the Cmax was 1. 4 times higher than the Cbasal, and the AUC was 222 arbitrary units. No differences were observed in Cbasal, Tmax, Cmax and AUC of vitamin A and B6 between control vs. MMT-supplemented cows. Plasma concentrations of vitamins D, E and B1 had no concentration peaks, and were not affected by MMT addition. The lack of a response suggests that their plasma concentration may be tightly regulated. Results of this study do not show evidence that MMT affects the bioavailability of vitamins A and B6 in vivo.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Mycotoxin binder ; Adsorption ; Bioavailability ; Vitamins ; Binding capacity
Publicat a: Toxins, Vol. 14 (january 2022) , ISSN 2072-6651

DOI: 10.3390/toxins14010026
PMID: 35051003


8 p, 905.3 KB

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