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25-羟基维生素D_3在动物营养中的应用

作  者:
韩进诚;姚军虎;郑永祥
单  位:
宜兰大学生物技术与动物科学系;商丘师范学院生命科学学院动物营养代谢与遗传改良研究所;西北农林科技大学动物科技学院
关键词:
25-羟基维生素D3;肉鸡;蛋鸡;生长性能;骨骼质量;生物学活性;毒性
摘  要:
文章综述了25-羟基维生素D(325-OH D3)在动物(主要是家禽)营养中的研究进展:①25-OH D3改善肉鸡生长性能,但会受到基础饲粮钙、磷和维生素D(3VD3)水平的影响;②25-OH D3改善肉鸡骨骼质量,降低TD(胫骨软骨发育不良)发病率,但受到肉鸡品系的影响;③25-OH D3增加肉鸡植酸磷回肠末端消化率,但未影响肠道(内源)植酸酶活性;④25-OH D3调节肉鸡肠道形态和免疫机能;⑤25-OH D3改善产蛋鸡产蛋后期蛋壳质量;⑥以家禽骨骼和蛋壳质量为评价指标,25-OH D3生物学活性为VD3的1~2.5倍;⑦以家禽肾脏钙化评价,25-OHD3的毒性约为VD3的5~10倍。
译  名:
A review of 25-hydroxycholecalciferol in animal nutrition
作  者:
Han Jincheng,Yao Junhu,Zheng Yongxiang
关键词:
25-hydroxycholecalciferol;broiler;laying hen;growth performance;bone quality;bioactivity;toxin
摘  要:
Research on 25-hydroxycholecalciferol(25-OH D3) in animal(especially in poultry) nutrition is reviewed.25-OH D3 improves growth performance of broiler chicks,whereas the responses are influenced by the levels of calcium,phosphorus,and vitamin D3 in basal diets.25-OH D3 enhances bone quality and decreases TD(tibial dyschondroplasia) incidence,but this effect is influenced by genetic background of birds.25-OH D3 increases the distal ileum digestibility of phytate-phosphorus,but it does not influence the intestinal(endogenous) phytase activities.25-OH D3 regulates intestine structure and immunity.25-OH D3 improves egg shell quality in elder laying hens.Bone mineralization and egg shell quality as the criteria,25-OH D3 is 1 to 2.5 times as effective as vitamin D3.On the basis of renal calcification,25-OH D3 is 5 to 10 times more toxic than vitamin D3 in poultry.

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