摘要
试验旨在研究全株青贮构树对海兰褐蛋鸡生产性能、蛋品质、器官指数及血清生化指标的影响。选取23周龄健康的海兰褐蛋鸡288只,随机分成3组,每组8个重复,每个重复12只鸡。对照组饲喂基础饲粮,试验组则分别在基础饲粮中添加1%和5%的青贮构树饲料,预试期7 d,正试期56 d。结果表明:与对照组相比,试验组提高了初产蛋鸡的平均日采食量、平均蛋重和料蛋比(P<0.05);试验组提高了蛋鸡血清中的高密度脂蛋白(HDL)含量和谷草转氨酶(AST)/谷丙转氨酶(ALT)的比值(P<0.05),1%青贮构树组降低了蛋鸡血清中总甘油三酯(TG)含量(P<0.05),并提高了AST活性(P<0.05),而5%青贮构树组提高了血清中低密度脂蛋白(LDL)含量(P<0.05),并降低了ALT活性(P<0.05);试验组降低了蛋鸡的心脏指数(P<0.05);1%青贮构树组降低了蛋鸡的肝脏指数(P<0.05),提高了腹脂率(P<0.05);5%青贮构树组的脾脏指数低于1%青贮构树组(P<0.05);5%青贮构树组可改善鸡蛋蛋黄颜色(P<0.05),增加鸡蛋的蛋清重量,5%青贮构树组蛋壳厚度低于1%青贮构树组(P<0.05)。综上所述,饲粮中添加全株青贮构树可提高平均蛋重、平均日采食量和料蛋比;1%青贮构树可以改善动物的产蛋性能,促进腹脂沉积;5%青贮构树可改善蛋黄色泽,提高鸡蛋蛋清重量。
This study aimed to investigate the effects of silage Broussonetia papyrifera(SBP)on laying performance,egg quality,organ indexes and serum biochemical indexes of Hyline browns.A total of 288 healthy 23-weeks-old Hyline browns were randomly assigned into 3 groups with 8 replicates in each group and 12 hens in each replicate.The hens in the control group was fed a basal diet,the trial groups were fed basal diet supplemented with 1%and 5%SBP,respectively.The experiment lasted for 56 days after 7 days pre-experiment.Compared with the control group,the average daily feed intake,the average egg weight and the feed to egg ratio in the trial groups significantly increased(P<0.05);The content of high density lipoprotein(HDL)and aspartate aminotransferase to alanine aminotransferase(AST/ALT)ratio in serum of trial groups significantly increased(P<0.05).The content of triglyceride(TG)was decreased and the activity of AST was increased in the serum of the 1%SBP group(P<0.05).The content of low density lipoprotein(LDL)was significantly increased and the activity of ALT was decreased in serum of the 5%SBP group(P<0.05).The heart index of laying hensin the trial groups significantly reduced(P<0.05).The liver index of laying hens significantly reduced and abdominal fat rate increased(P<0.05)in the 1%SBP group.Compared with the 1%SBP group,the spleen index of the 5%SBP group decreased significantly(P<0.05).The yolk color and the albumen weight in 5%SBP group improved(P<0.05).Compared with the 1%SBP group,the thickness of eggshell in the 5%SBP group significantly reduced(P<0.05).In summary,dietary supplemented with SBP in the laying hens could improve the average egg weight,the average daily feed intake and the feed to egg ratio.The addition of 1%SBP is beneficial to laying performance and promote abdominal fat deposition.Adding 5%SBP can improve the yolk color of the egg and increase the albumen weight.
作者
王永峰
吴信
牛凯敏
王汝霞
翟振亚
陈国顺
郑刘振
WANG Yongfeng;WU Xin;NIU Kaimin;WANG Ruxia;ZHAI Zhenya;CHEN Guoshun;ZHENG Liuzhen(College of Animal Science and Technology,Gansu Agricultural University,Gansu Lanzhou 730070,China;Institute of Biological Resources,Jiangxi Academy of Sciences,Jiangxi Nanchang 330012,China;Key Laboratory of Agro-ecological Processes in Subtropical Region.National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Hunan Changsha 410125,China)
出处
《中国畜牧杂志》
CAS
北大核心
2022年第1期183-187,共5页
Chinese Journal of Animal Science
基金
畜禽无抗健康风味畜产品研发中心(2019-4-52)
畜禽无抗健康风味畜产品研发中心(2020-1-10)。
关键词
青贮构树
蛋鸡
产蛋性能
蛋品质
血清生化指标
器官指数
Silage Broussonetia papyrifera
Hyline browns
Laying performance
Egg quality
Serum biochemistry indexes
Organ indexes
