不同品种与日龄鸭骨密度、骨矿物含量以及器官指数比较分析  

Effect of Different Duck Breeds and Age on Bone Mineral Density,Bone Mineral Content and Organ Indices

作　　者：毛佳明 杨春彦 刘本帅 杨云凤 陈安琪 陈国宏[1] 常国斌[1] 王志秀 MAO Jiaming;YANG Chunyan;LIU Benshuai;YANG Yunfeng;CHEN Anqi;CHEN Guohong;CHANG Guobin;WANG Zhixiu(College of Animal Science and Technology,Yangzhou University,Yangzhou,Jiangsu 225009)

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《中国家禽》2024年第12期146-151,共6页China Poultry

基　　金：江苏省大学生创新创业训练计划(202211117069Z);国家自然科学基金青年基金项目(32002159);中国博士后科学基金面上项目(2020M671631)。

摘　　要：为研究品种和日龄对鸭骨密度、骨矿物含量以及器官指数的影响,试验以润州凤头白鸭、连城白鸭和樱桃谷鸭为研究对象,分别在21、35、49、63日龄时在3个群体中各选30只,取其心脏、肝脏和左侧胫骨,计算心脏指数和肝脏指数并测定胫骨的骨密度和骨矿物含量,对三个品种的骨密度、骨矿物含量、心脏指数和肝脏指数进行比较分析。结果显示:随日龄增加,三个品种鸭的肝脏指数均显著降低(P<0.05),而心脏指数没有变化(P>0.05)。连城白鸭心脏指数显著高于樱桃谷鸭(P<0.05)。21日龄时润州凤头白鸭肝脏指数显著高于樱桃谷鸭和连城白鸭(P<0.05)。49日龄时樱桃谷鸭肝脏指数显著低于连城白鸭和润州凤头白鸭(P<0.05)。品种和日龄对胫骨骨密度和骨矿物含量有显著影响(P<0.001)。润州凤头白鸭和连城白鸭骨密度随日龄增长均显著升高(P<0.05),而樱桃谷鸭骨密度随日龄增长变化不显著(P>0.05)。21、35和49日龄时,樱桃谷鸭骨密度均显著高于连城白鸭和润州凤头白鸭(P<0.05)。三个品种鸭骨矿物含量均随着日龄增加而逐渐增加,并且樱桃谷鸭的骨矿物含量显著高于连城白鸭和润州凤头白鸭(P<0.05),而润州凤头白鸭骨矿物含量显著高于连城白鸭(P<0.05)。润州凤头白鸭胫骨长与肝脏指数极显著负相关(P<0.01),连城白鸭胫骨长与骨密度呈显著正相关(P<0.05)。研究表明品种和日龄对鸭骨密度、骨矿含量、心脏指数和肝脏指数均有影响显著,樱桃谷鸭的BMD和BMC高于连城白鸭和润州凤头白鸭,但心脏和肝脏指数要小于连城白鸭和润州凤头白鸭。To study the effects of breed and rearing age on bone density,bone mineral content and organ index of ducks,Runzhou white crested ducks,Liancheng white ducks and Cherry Valley ducks were used as research subjects,30 ducks were selected from each of the three groups at 21,35,49 and 63 days of age,respectively,and their hearts,livers and left tibiae were taken.Heart and liver indices were calculated and bone mineral density(BMD)and bone mineral content(BMC)of the tibia were determined.BMD,BMC,heart and liver indices of the three breeds were compared and analyzed.The results showed that the liver index decreased significantly with increasing age in all three breeds of ducks(P<0.05),while the heart index did not change(P>0.05).The heart index of Liancheng white ducks was significantly higher than that of Cherry Valley ducks(P<0.05).The liver index of Runzhou white crested ducks at 21 days of age was significantly higher than that of Cherry Valley ducks and Liancheng white ducks(P<0.05).The liver index of Cherry Valley ducks at 49 days of age was significantly lower than that of Liancheng white ducks and Runzhou white crested ducks(P<0.05).Breed and age had significant effects on tibia BMD and BMC(P<0.001).The BMD of Runzhou white crested ducks and Liancheng white ducks increased significantly with age(P<0.05),while the BMD of Cherry Valley ducks did not change significantly with age(P>0.05).The BMD of Cherry Valley ducks was significantly higher than that of Liancheng white ducks and Runzhou white crested ducks at 21,35,and 49 days of age(P<0.05).The BMC of all three breeds of ducks increased gradually with increasing age,and and the BMC of Cherry Valley ducks was significantly higher than that of Liancheng white ducks and Runzhou white crested ducks(P<0.05),while the BMC of Runzhou white crested ducks was significantly higher than that of Liancheng white ducks(P<0.05).The results indicated that breed and age had significant effects on BMD,BMC,cardiac index and liver index of ducks,and BMD and BMC of Cherry Valley du

关 键 词：骨密度 骨矿物含量 心脏指数 肝脏指数 润州凤头白鸭 连城白鸭 樱桃谷鸭 

分 类 号：S834.2[农业科学—畜牧学]