不同维生素D_(3)配合日粮对肉仔鸡胫骨发育和营养代谢的影响  

Effects of Different Diets of Vitamin D_(3)on Tibia Development and Nutritional Metabolism in Broilers

作　　者：赵国生 ZHAO Guosheng(Wuwei Agricultural and Rural Project Service Center,Wuwei Gansu 733000,China)

机构地区：[1]武威市农业农村项目服务中心,甘肃武威733000

出　　处：《畜牧兽医杂志》2023年第4期8-11,共4页Journal of Animal Science and Veterinary Medicine

摘　　要：VD_(3)作为调节家禽钙磷代谢、促进钙化的重要物质,在家禽饲料中有着广泛的应用。但因日光照射程度的影响,动物体内的VD_(3)生成量非常有限,难以满足家禽生长过程中的需求。为此本文就不同水平25-OH-D_(3)与VD_(3)组合日粮对肉仔鸡胫骨发育和营养物质代谢情况进行研究,结果发现在相同营养水平条件下添加25-OH-D_(3)69μg/kg、VD_(3)1380 IU/kg时肉仔鸡胫骨发育和营养物质代谢均有程度不同的提高,但是超量添加时受到抑制,由此表明适量25-OH-D_(3)和VD_(3)的添加能有效改善肉仔鸡生长发育状况,为提高生产性能奠定良好的基础。As an important substance to regulate calcium and phosphorus metabolism and promote calcification in poultry,VD_(3) has been widely used in poultry feed.However,due to the impact of sunlight exposure,the amount of VD_(3) produced in animals is very limited,which is difficult to meet the needs of poultry during growth.Therefore,this paper studies the development of tibia and nutrient metabolism of broiler chickens with different levels of 25-OH-D_(3) and VD_(3) combined diets.The results showed that under the same nutrient level,the development of broiler tibia and nutrient metabolism in broilers were improved to varying degrees when supplemented with 25-OH-D_(3)69μg/kg and VD_(3)1380 IU/kg,but they were inhibited when supplemented in excess.This indicated that the appropriate addition of 25-OH-D_(3) and VD_(3) at the age of day can effectively improve the growth and development of broilers,which can lay a good foundation for improving production performance.

关 键 词：维生素D_(3) 肉仔鸡 胫骨发育 营养代谢 影响 

分 类 号：S816.71[农业科学—饲料科学]