饲料铜锌减量对杜梅生长猪生长性能及粪便铜锌含量的影响  

Effects of Dietary Cu-Zn Reduction on Growth Performance and Fecal Cu-Zn Contents in Dumei Growing Pigs

作　　者：唐赛涌 卞国顺 姜琴芳 赵羽丰 夏东[2] 陆乃升 姜雪元[2] 雷胡龙[2] TANG Saiyong;BIAN Guoshun;JANG Qinfang;ZHAO Yufeng;XIA Dong;LU Naisheng;JIANG Xueyuan;LEI Hulong(Animal Disease Prevention and Control Center,Shanghai 201800,China;Key Laboratory of Livestock and Poultry Resources(Pig)Evaluation and Utilization of Ministry of Agriculture and Rural Affairs,Shanghai Engineering Research Center of Breeding Pig,Institute of Animal Husbandry&Veterinary Science,Shanghai Academy of Agricultural Sciences,Shanghai 201106,China;Shanghai Heima Feed Co.,Ltd.,Shanghai 201808,China)

机构地区：[1]上海市嘉定区动物疫病预防控制中心,上海201899 [2]上海市农业科学院畜牧兽医研究所,农业农村部畜禽资源(猪)评价利用重点实验室,上海种猪工程技术研究中心,上海201106 [3]上海黑马饲料有限公司,上海201808

出　　处：《饲料博览》2024年第2期25-28,34,共5页Feed Review

基　　金：上海市嘉定区自然科学研究课题(JDKW-2021-0001)。

摘　　要：为探讨饲料中铜锌减量对生长猪生长性能和粪便中铜锌含量的影响,试验将224头杜洛克×梅山二元生长猪随机分为对照组(基础日粮+60 mg·kg^(-1)铜+100 mg·kg^(-1)锌)和试验组(基础日粮+15 mg·kg^(-1)铜+50 mg·kg^(-1)锌),两组除日粮不同外其他饲养管理条件完全相同,试验期为30天。结果表明,饲粮中铜锌减量对杜梅猪生长性能无显著影响(P>0.05),试验组粪便中铜含量较对照组降低了52.8%(P<0.01)、锌含量较对照组降低了40.7%(P<0.01)。因此,饲料中铜添加量从60 mg·kg^(-1)降低至15 mg·kg^(-1)、锌添加量从100 mg·kg^(-1)降低至50 mg·kg^(-1)不仅不会降低生长猪的生长性能,还能减少粪便铜锌的排泄量。To investigate the effects of dietary Cu-Zn reduction on the growth performance and contents of fecal Cu and Zn in growing pigs,a total of 224 Duroc×Meishan(Dumei)crossbred pigs were randomly divided into two groups in this study.The control group were fed the basal diet supplemented with 60 mg·kg^(-1) Cu and 100 mg·kg^(-1) Zn,and the experimental group was fed with the basal diet supplemented with 15 mg·kg^(-1) Cu and 50 mg·kg^(-1) Zn.Pigs in the two groups was raised and managed under the same conditions except the diets for 30 days.The results showed that dietary Cu-Zn reduction exerted no influence on the growth performance of Dumei growing pigs(P>0.05).As compared to the control group,the fecal Cu and Zn contents in the experimental group were reduced by 52.8%and 40.7%(P<0.01).The present study suggested that reducing Cu addition from 60 mg·kg^(-1) to 15 mg·kg^(-1) and Zn addition from 100 mg·kg^(-1) to 50 mg·kg^(-1) in the diets was feasible,which exerted no adverse effect on the growth performance of growing pigs and could reduce the excretion of Cu and Zn.

关 键 词：饲料铜锌减量 生长性能 铜锌排泄 杜梅生长猪 

分 类 号：S815.4[农业科学—畜牧学]