摘要
本实验旨在研究饲粮中添加银杏叶及银杏叶提取物(Ginkgo biloba extract,EGB)对肉鸡生长性能、抗氧化及血清生化指标的影响。选取1日龄爱拔益加(AA)肉鸡640只,随机分为4个处理,每个处理8个重复,每个重复20只鸡。对照组饲喂基础饲粮,实验组在基础饲粮的基础上分别添加60 g/kg的银杏叶、0.8g/kg的EGB和0.02 g/kg的杆菌肽锌,其中,银杏叶等量替代基础饲粮中的麸皮。实验期为42 d,分为两个阶段:实验前期(1~21 d)和实验后期(22~42 d)。结果表明:肉鸡饲粮中添加银杏叶、EGB和杆菌肽锌均能显著提高肉鸡21 d体重及1~42 d平均日采食量(ADFI)(P<0.05);与对照组相比,银杏叶、EGB和杆菌肽锌能显著提高肉鸡21、42 d血清和肝脏中GSH-Px活性(P<0.05);银杏叶和EGB能显著提高肉鸡21 d血清总蛋白(TP)水平(P<0.05),降低肉鸡21及42 d血清甘油三酯(TG)和总胆固醇(TCHO)水平(P<0.05)。由此可知,饲粮中添加60 g/kg银杏叶和0.8 g/kg EGB可改善肉鸡生长性能,提高肉鸡抗氧化能力,降低血清TG和TCHO水平。
This study was conducted to investigate the effects of ginkgo biloba leaves （ginkgoaceae, ginkgo bi- loba） and ginkgo biloba extrct （EGB） on growth performance, antioxidant and serum biochemical indices of broilers. 640 1 - day - old male Arbor Acres broilers were randomly allocated to 4 treatments with 8 replicates of 20 broilers in a single factor complete randomized design. Broilers in control groups were fed a corn - soybean meal type basal diet, and broilers in experimental groups were fed the basal diet supplemented with 60 g/kg of ginkgo leaves, 0.8 g/kg EGB and 0.02 g/kg b zinc （Bacitracin）, respectively, and ginkgo leaves replacing equivalent bran in the basal di- et. The experiment lasted for 42 d, and the broilers were fed a 42d. The results showed as follows： Supplementation of starter diet from 1 to 21d and a grower diet from 22 to ginkgo （P 〈 0.05） the body weight at 21 days of age and 1 to 42 d of leaves, EGB and bacitracin significantly increased average daily feed intake compared with the control group. The activity of glutathione peroxidase in serum and liver of broilers at 21 and 42 d of age in experiment groups were significantly increased （ P 〈 0.05 ） compared with the control treatment. The serum of superoxide dismutase of broilers at 21 and 42 days of age in ginkgo leaves and EGB supplementation groups were significantly increased （P 〈 0.05 ） compared with those of control and Bacitracin supplementation treatments. Compared with control group, sup- plementation of ginkgo leaves and EGB increased （ P 〈 0.05 ） the serum total protein （TP） of broilers at 21 d of age, while there were significantly decreased （P 〈0.05） the triglyceride （TG） and total cholesterin （TCHO） at 21 and 42 d of age. In conclusion, dietary supplementation with 60 g/kg Ginkgo leaves and 0.8 g/kg EGB could improve the growth performance, increase the antioxidant capacities and decrease the level of TP and TCHO of broilers.
作者
任小杰
李祥明
杨在宾
丁晓
姜淑贞
Ren Xiaojie;Li Xiangming;Yang Zaibin;Ding Xiao;Jiang Shuzhen(Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Preventio;College of Animal Science and Technology, Shandong Agricultural UniversityI , Taian 271018;Shandong Feed Quality Inspection Institute2, Jinan 25002)
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2018年第4期73-79,共7页
Journal of the Chinese Cereals and Oils Association
基金
公益性行业(农业)科研专项(201403047)
山东省"双一流"奖补资金(20170617)
关键词
银杏叶
银杏叶提取物
生长性能抗氧化
肉鸡血清生化
ginkgo leaves, ginkgo biloba extract, growth performance, antioxidant, broilers, serum biochemical
