摘要
选用504只1日龄艾维因肉仔鸡为研究对象,采用完全随机试验设计,随机分成9组,每组4个重复。试验分成0～4周龄和5～7周龄两个阶段。日粮中维生素A有3个添加水平,分别为750、1500、2700IU/kg;铁的添加水平为0、30、60μg/g。通过屠宰试验和原子吸收分光光度法测定各项指标。结果表明,5～7周龄日粮不同铁添加水平对肝脏、心脏锰含量影响极显著(P<0.01),并且随着铁添加水平的增加,肝脏、心脏锰含量增加;肝脏5～7周龄锰含量,肾脏、心脏的锰含量均受到VA的影响,肝脏、肾脏的锰含量随VA添加水平的升高而升高;铁和维生素A的互作效应对骨骼锰含量影响极显著(P<0.01)。
<Abstrcat>504 broiler chickens were randomly divided into 9 groups with 4 repeats per group, including two stage test(0～4 weeks and 5～7 weeks). Different levels of vitamin A (750?1 500?2 700 IU/kg)and iron(0?30?6 0 μg/g)were added into the diets. The results show that Fe supplement had significant effects on Mn concentration in liver and heart(P<0.01) at the later stage,and the Mn concentration in liver and heart increased with the increase of Fe. V_A supplement had effect on Mn concentration in kidney, heart and liver, and their apparent accumulation rate of Mn increased with the increase of V_A. Also, the interactions between Fe and V_A had significant effects on Mn concentration in skeleton(P<0.01).
出处
《天津农学院学报》
CAS
2005年第2期29-32,共4页
Journal of Tianjin Agricultural University
基金
山西省自然科学基金项目"维生素A和铁的互作效应的研究"(981086)
关键词
铁
维生素A
锰表观存留率
脏器
Fe
V_A
apparent accumulation rate of Mn
organ
