饲粮锰对蛋鸡组织锰含量及其生长发育和生产性能的影响  

A STUDY OF THE EFFECTS OF DIETARY MANGANESE UPON TISSUSE MANGANESE CONTENTS AND PERFORMANCES IN CHICKEN

作　　者：张建云[1] 王守清[1] 赵志恭[1] 王文元[1] 邱文革 

机构地区：[1]内蒙古农牧学院

出　　处：《中国动物营养学报》1992年第1期32-40,共9页

摘　　要：本试验研究了饲粮不同锰水平对蛋鸡组织器官中锰含量及其生长发育、产蛋性能和孵化效果的影响。结果表明:羽毛、消化道、肝脏、胫骨和肾脏中的锰量都随饲粮锰的提高而显著增加(P<0.01)。当雏鸡饲粮锰含量在13.5ppm时,锰在体内沉积出现负平衡,雏鸡脱腱症出现率为5.21％。产蛋鸡第1组(17.8ppm Mn)的产蛋率低于其它五组(P<0.01),饲粮低锰使破蛋率和软蛋率显著升高(P<0.01),第3组(73.8ppm Mn)破蛋率最低,第5组(153.8ppm Mn)软蛋率最低。其次,饲粮高锰和低锰都使蛋壳厚度和强度降低(P<0.01),同时也降低受精率(P>0.05)。受精蛋孵化率以第3组(73.8ppm Mn)最高(P<0.01),并可有效地防止雏鸡脱腱症的发生。作者建议,产蛋前期母鸡饲粮含锰在73.8——153.8ppm为佳;种鸡则为73.8——113.8ppm;而在蛋鸡生长发育阶段,饲粮含锰不得低于33.5ppm。An experiment was conducted with 540 one-day-old Starcross-288 female chickens to study the effects of dietary Mn on growth and development,egg production, tissue Mn contents, hatchability, and balance of Mn、Cu、Zn. The experimental results showed that high dietary Mn increased the Mn contents of all tissues. There was a linear increase(P<0.01) in body Mn retained as dietary Mn increased. Low Mn decreased significantly egg production(P<0.01), egg shell thickness(P<0.01), egg shell strength (P<0.01), hatchability (P<0.01), and increased (P<0.01) the percentages of soft-shelled and broken eggs. There was a significant increase (P<0.01) in egg Mn content as dietary Mn increased.

关 键 词：饲料锰 蛋鸡 

分 类 号：S8[农业科学—畜牧兽医]