复合有机微量元素减量添加对肉鸭生长性能、肉品质、血清抗氧化能力和微量元素排泄的影响  

Effects of Reduction Adding of Compound Organic Trace Mineral on Growth Performance,Meat Quality,Serum Antioxidant Capacity and Trace Element Excretion of Meat Ducks

作　　者：赵陆原 邹晨浩 郭燕珊 曹久爱 葛超悦 罗鑫宇 林刚 刘兵[2] 余东游[2] ZHAO Luyuan;ZOU Chenhao;GUO Yanshan;CAO Jiu’ai;GE Chaoyue;LUO Xinyu;LIN Gang;LIU Bing;YU Dongyou(Hainan Institute,Zhejiang University,Sanya 572025,China;College of Animal Science,Zhejiang University,Hangzhou 310058,China;Beijing Alltech Biological Products(China)Co.,Ltd.,Beijing 100600,China)

机构地区：[1]浙江大学海南研究院,三亚572025 [2]浙江大学动物科学学院,杭州310058 [3]奥特奇(中国)生物制品有限公司,北京100600

出　　处：《动物营养学报》2022年第6期3615-3626,共12页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：浙江省农业重大技术协同推广计划项目(2021XTTGXM04)。

摘　　要：本试验旨在研究复合有机微量元素(铁、铜、锰、锌和硒)减量取代无机元素对肉鸭生长性能、肉品质、血清抗氧化能力及微量元素排泄的影响。将450只1日龄的樱桃谷肉鸭随机分成5组,每组6个重复,每个重复15只。无机对照组(ITM组)在基础饲粮中添加NRC(1994,下同)推荐量无机元素(铁、铜、锰、锌和硒添加量分别为40.0、10.0、50.0、60.0、0.2 mg/kg);空白对照组(NC组)在基础饲粮中不额外添加微量元素;1/2NRC无机组(1/2ITM组)和1/2NRC有机组(1/2OTM组)分别在基础饲粮中添加50%NRC推荐量无机微量元素和复合有机微量元素;1/2ITM+1/2OTM组在基础饲粮中添加50%NRC推荐量无机微量元素和50%NRC推荐量复合有机微量元素。试验期42 d。结果表明:1)与ITM组相比,NC组和1/2ITM组1~21日龄和1~42日龄肉鸭体重(BW)和平均日增重(ADG)显著降低(P<0.05),而1/2OTM组和1/2ITM+1/2OTM组肉鸭各阶段BW、ADG和饲料转化率(FCR)较ITM组无显著差异(P>0.05);1/2OTM组肉鸭各阶段BW和ADG均显著高于1/2ITM组(P<0.05)。2)除NC组肉鸭胸肌的滴水损失较ITM组显著增加(P<0.05)外,其他各组胸肌的pH、肉色(亮度、红度和黄度值)、滴水损失和蒸煮损失与ITM组无显著差异(P>0.05)。3)与ITM组相比,NC组和1/2ITM组肉鸭21日龄血清总抗氧化能力(T-AOC)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-Px)活性及42日龄血清T-AOC和总超氧化物歧化酶(T-SOD)活性均显著降低(P<0.05),且血清丙二醛(MDA)含量显著升高(P<0.05);而1/2OTM组和1/2ITM+1/2OTM组21和42日龄肉鸭血清抗氧化指标(除GSH-Px活性外)与ITM组无显著差异(P>0.05)。与1/2ITM组相比,1/2OTM组21日龄时肉鸭血清T-AOC、CAT活性以及42日龄血清T-SOD活性显著提高(P<0.05),同时血清MDA含量显著降低(P<0.05)。4)与ITM组相比,NC组、1/2ITM组、1/2OTM组和1/2ITM+1/2OTM组肉鸭粪便铁、铜和锌排泄量均显著降低(P<0.05),尤其是1/2OTM组粪便铁、铜、锰、锌和硒�This experiment aimed to study the effects of compound organic trace minerals(iron,copper,manganese,zinc and selenium)reducing level instead of inorganic trace minerals on growth performance,meat quality,serum antioxidant capacity and fecal trace element emissions of meat ducks.A total of 450 one-day-old Cherry Valley ducks were randomly divided into 5 groups with 6 replicates in each group and 15 ducks in each replicate.The inorganic control group(ITM group)was supplemented with inorganic trace minerals recommended by NRC(1994,the same as below)in a basal diet(iron,copper,manganese,zinc and selenium was added by 40.0,10.0,50.0,60.0,0.2 mg/kg,respectively);the blank control group(NC group)was fed the basal diet without additional iron,copper,manganese,zinc and selenium;the 1/2NRC inorganic group(1/2ITM group)and the 1/2NRC organic group(1/2OTM group)were added 50%of the NRC recommended amount of inorganic or organic trace elements(iron,copper,manganese,zinc and selenium was added by 20.0,5.0,25.0,30.0,0.1 mg/kg,respectively);and the 1/2ITM+1/2OTM group was added 50%of the NRC recommended amount of inorganic trace elements and organic trace elements in the basal diet.The trial period was 42 days.The results showed as follows:1)compared with the ITM group,the body weight(BW)and average daily gain(ADG)of 1 to 21 and 1 to 42-day-old meat ducks in the NC and 1/2 ITM groups were significantly lower(P<0.05),while there was no significant difference in BW,ADG and feed conversion rate(FCR)of meat ducks in the1/2OTM group and 1/2ITM+1/2OTM group at each stage(P>0.05).The BW and ADG of meat ducks in the 1/2OTM group were significantly higher than those in the 1/2ITM group at each stage(P<0.05).2)Except that the breast muscle drip loss of meat ducks in NC group was significantly higher than that in the ITM group(P<0.05),there were no significant differences in pH,meat color,drip loss and cooking loss of the breast muscle among groups(P>0.05).3)Compared with the ITM group,the total antioxidant capacity(T-AOC),the activities o

关 键 词：复合有机微量元素 肉鸭 生长性能 肉品质 抗氧化能力 减排 

分 类 号：S834[农业科学—畜牧学]