Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses

An experiment involving 40 adult trotters and saddle horses was conducted during a period of one year in order to investigate the influence of vitamin A (retinol) and D (25-(OH)D) supplementation on serum vitamin concentrations and the seasonal variation of the serum concentrations of these vitamins...

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Main Authors: Markku Saastamoinen, Johanna Juusela
Format: Article
Language:English
Published: Scientific Agricultural Society of Finland 1992-09-01
Series:Agricultural and Food Science
Online Access:https://journal.fi/afs/article/view/72460
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author Markku Saastamoinen
Johanna Juusela
author_facet Markku Saastamoinen
Johanna Juusela
author_sort Markku Saastamoinen
collection DOAJ
description An experiment involving 40 adult trotters and saddle horses was conducted during a period of one year in order to investigate the influence of vitamin A (retinol) and D (25-(OH)D) supplementation on serum vitamin concentrations and the seasonal variation of the serum concentrations of these vitamins. Vitamin supplementation was started either at the beginning or in the middle of the indoor (winter) feeding period. Supplementation lasted from the beginning of September or January to the end of May. According to the results, neither the dietary vitamin supplementation nor the length of the grazing period had any consistent effect on the serum vitamin concentrations. Neither was there any systematic seasonal variation in the serum retinol and 25-hydroxyvitamin D levels.
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spelling doaj.art-348c323ba84e4e65a29595d045eb54b22022-12-22T00:34:39ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18951992-09-0115Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horsesMarkku Saastamoinen0Johanna Juusela1Agricultural Research Centre of Finland, Equine Research Station, SF-32100 Ypäjä, FinlandAgricultural Research Centre of Finland, Equine Research Station, SF-32100 Ypäjä, FinlandAn experiment involving 40 adult trotters and saddle horses was conducted during a period of one year in order to investigate the influence of vitamin A (retinol) and D (25-(OH)D) supplementation on serum vitamin concentrations and the seasonal variation of the serum concentrations of these vitamins. Vitamin supplementation was started either at the beginning or in the middle of the indoor (winter) feeding period. Supplementation lasted from the beginning of September or January to the end of May. According to the results, neither the dietary vitamin supplementation nor the length of the grazing period had any consistent effect on the serum vitamin concentrations. Neither was there any systematic seasonal variation in the serum retinol and 25-hydroxyvitamin D levels.https://journal.fi/afs/article/view/72460
spellingShingle Markku Saastamoinen
Johanna Juusela
Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
Agricultural and Food Science
title Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
title_full Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
title_fullStr Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
title_full_unstemmed Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
title_short Influence of dietary supplementation on serum vitamin A and D concentrations and their seasonal variation in horses
title_sort influence of dietary supplementation on serum vitamin a and d concentrations and their seasonal variation in horses
url https://journal.fi/afs/article/view/72460
work_keys_str_mv AT markkusaastamoinen influenceofdietarysupplementationonserumvitaminaanddconcentrationsandtheirseasonalvariationinhorses
AT johannajuusela influenceofdietarysupplementationonserumvitaminaanddconcentrationsandtheirseasonalvariationinhorses