To investigate the influence of two dietary sources of vitamin D on the vitamin D status,
bone metabolism, welfare and birth progress of gestating and lactating sows, forty-nine multiparous
sows were randomly assigned to one of two diets: “CON” (n = 25; 50 g vitamin D3/kg feed)
and “HYD” (n = 24; 50 g 25-hydroxycholecalciferol/kg feed). The basal diets were protein- and
phosphorus-reduced. The trial started on day 3 ante insemination of the sows and ended with
weaning of the piglets on day 28 postpartum. Dietary supplementation of 25-hydroxycholecalciferol
resulted in improved maternal vitamin D status (p < 0.001), fewer gait changes (p < 0.01) and longer
standing time after feeding (day 5 ante partum; p < 0.05) compared to vitamin D3. However, the
bone markers CrossLaps and osteocalcin were not affected. Overall, the present results suggest that
sows fed 25-hydroxycholecalciferol instead of vitamin D3 showed improved locomotion and stance
strength. However, this outcome is probably not related to altered bone metabolism. The underlying
mechanisms must be investigated in further studies.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:87686 |
| Date | 26 October 2023 |
| Creators | Lütke-Dörhoff, Michael, Schulz, Jochen, Westendarp, Heiner, Visscher, Christian, Wilkens, Mirja R. |
| Publisher | MDPI |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 1678 |
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