- WEISHI
- CHINA
The research progress of 25- hydroxycholecalciferol (25-OH D) in animal nutrition, especially poultry, was reviewed. 25-OH DJ can improve the growth performance of broilers, but its effect is affected by the basal dietary calcium, phosphorus and vitamin D levels. 25-OH D can improve bone quality and reduce the incidence of tibial chondroplasia (TD), but this effect is affected by the genetic background of birds. 25-OH D: Increases distal ileum phytate-phosphorus digestibility without affecting intestinal (endogenous) phytase activity. 25-OH Ds regulates intestinal structure and immunity. 25-hydroxyD can improve eggshell quality of older laying hens. Based on bone mineralization and eggshell quality, 25-OH D was 1 to 2.5 times more effective than vitamin D. 25-OH D is 5 to 10 times more toxic than vitamin D in terms of kidney calcification.
＞PRODUCT PICTURE
＞Product name
Vitamin A Acetate
Research on 25-hydroxycholecalciferol (25-OH D) in animal (especially in poultry)nutrition is reviewed.25-OH DJ improves growth performance of broiler chicks，whereas the re-sponses are influenced by the levels of calcium， phosphorus,and vitamin D, in basal diets.25-OH Ds enhances bone quality and decreases TD (tibial dyschondroplasia) incidence,but this ef-fect is influenced by genetic background of birds. 25-OH D: increases the distal ileum digest-ibility of phytate-phosphorus, but it does not influence the intestinal (endogenous) phytase activ-ities.25-OH Ds regulates intestine structure and immunity. 25-OH D improves egg shell quali-ty in elder laying hens. Bone mineralization and egg shell quality as the criteria,25-OH D is 1to 2.5 times as effective as vitamin D.On the basis of renal calcification，25-OH D, is 5 to 10times more toxic than vitamin D: in poultry.
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