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
唐赛涌 1卞国顺 2姜琴芳 1赵羽丰 1夏东 3陆乃升 3姜雪元 3雷胡龙3
作者信息
- 1. 上海市嘉定区动物疫病预防控制中心,上海 201899
- 2. 上海黑马饲料有限公司,上海 201808
- 3. 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
- 折叠
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.
Abstract
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Key words
dietary Cu-Zn reduction/growth performance/Cu-Zn excretion/Dumei growing pig引用本文复制引用
基金项目
上海市嘉定区自然科学研究课题(JDKW-2021-0001)
出版年
2024
NETL
NSTL
万方数据