ArticleAnimals : an open access journal from MDPI2022
A Comparison between Vitamin D
Article in Animals : an open access journal from MDPI, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
11 citing papers in PubMed, 22 citations in OpenAlex.
- Nano-encapsulated vitamin DPoultry science · 2026Article
- Optimizing eggshell quality in extended laying periods: Insights and strategies.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Review
- Effects of dietary 25-hydroxyvitamin D3 (25(OH)D3) supplementation on production performance, egg quality, tibia quality, and mineral metabolism of ducks during peak laying period in the cage rearing system.Journal of animal science · 2026Article
- Dietary supplementation with 25-hydroxycholecalciferol is more effective than cholecalciferol in improving reproductive performance in aged duck breeders.Journal of animal science · 2026Article
- Chitosan Nano-Selenium Supplementation Improves Production Performance, Egg Quality, and Selenium Deposition in Aging Laying Hens.Biological trace element research · 2026Article
- Associations of Candidate Gene Polymorphisms with Egg Production and Egg Quality Traits in Atak-S Laying Hens.International journal of molecular sciences · 2025Article
- Dietary cholecalciferol and 25-hydroxyvitamin DAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- Dietary supplementation with 25-hydroxyvitamin DAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2024Article
- Supplementation of the Combination of Quercetin and Vitamin E Alleviates the Effects of Heat Stress on the Uterine Function and Hormone Synthesis in Laying Hens.Animals : an open access journal from MDPI · 2024Article
- Effects of Long-Term Coated Sodium Butyrate Supplementation on the Intestinal Health and Colonization of CecalAnimals : an open access journal from MDPI · 2024Article
- Dietary 25-Hydroxycholecalciferol Supplementation as a Vitamin DAnimals : an open access journal from MDPI · 2024Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study was to compare high supplementary doses (125 µg/kg) of vitamin D3 (VD3) or 25-hydroxyvitamin D3 (25-OHD3) with commercial supplementary doses (62.5 µg/kg) of VD3 on laying performance, eggshell quality and ultrastructure, and plasma calcium levels in late period laying hens. A total of 1512 Roman Gray (60-week-old) laying hens were allotted into three treatments with 12 replicates and 42 birds in each replicate. During the 12-week trial period, the layers were fed a basal diet supplemented with different doses of VD3 or 25-OHD3 (62.5 µg/kg VD3 in control group, CON; 125 µg/kg VD3 in high level VD3 group, VD3; 125 µg/kg 25-OHD3 in high level 25-OHD3 group, 25-OHD3). The results showed that high supplementary doses of VD3 or 25-OHD3 increased laying rate (p < 0.05). Moreover, the layers fed high doses of VD3 or 25-OHD3 diets had decreased unqualified egg rate and mortality (p < 0.05). High supplementary doses of VD3 or 25-OHD3 increased eggshell strength and eggshell thickness (p < 0.05). From observation in eggshell ultrastructure, high doses of VD3 or 25-OHD3 diets increased the palisade layer thickness and mammillary knob density (p < 0.05). Furthermore, high doses of VD3 or 25-OHD3 diets increased the calcium levels in plasma (p < 0.05). In summary, compared with 62.5 µg/kg doses of VD3, supplementary 125 µg/kg doses of VD3 or 25-OHD3 improved the laying performance, eggshell quality, and plasma calcium levels in late period laying hens. Additionally, there was an equal effect on laying performance and eggshell quality in the hens fed dietary 125 µg/kg doses of VD3 or 25-OHD3.
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