家畜生态学报2017，Vol.38Issue(7)：50-54,5.
不同规模化猪场饲料和粪便中锌含量调查分析
Concentrations of Zinc in Feeds and Feces in Large Scale Pig Farms
摘要
Abstract
Feed and feces samples of growing and fattening pigs,nursery pigs and weaned pigs were collected from 19 intensive pig farms.The concentrations of zinc in feeds and feces samples were detected and the correlation between feeds and fecal zinc concentrations was analyzed.The results showed that the exceeding rate of feeds was 71.9%,with feces exceeding rate of 29.8%.The concentrations of zinc in the pigs' feces of various stages were higher than that in the corresponding stages of feeds (P<0.05),except the growing and fattening pigs from No.3,No.12 and No.14 pig farms and the nursery pigs from No.1,No.2,No.4,No.5,No.12 and No.14 pig farms.The concentrations of zinc in feeds samples of weaned pigs were higher than that of growing and fattening pigs and nursery pigs (P<0.05),except No.4 and No.15 pigs farm.There was significant positive correlation between the zinc concentration in feeds and the zinc concentration in feces,the correlation coefficient was 0.9594.And the correlation coefficients were 0.5342,0.1761 and 0.8488 in growing and fattening pigs,nursery pigs and weaned pigs,respectively.The linear regression slope was 1.806 between feeds and feces,and 1.220,0.7219 and 1.494,for growing and fattening pigs,nursery pigs and weaned pigs,respectively.The results indicate that the zinc concentrations in feeds and feces from intensive pig farms both exceed the limits of the national standard,and the zinc concentration in feces and feeds was positively correlated.关键词
猪/饲料/粪便/锌含量/规模化养殖Key words
pigs/feeds/feces/Zinc/intensive pig farm分类
农业科技引用本文复制引用
周鑫,任善茂,李延森,李春梅..不同规模化猪场饲料和粪便中锌含量调查分析[J].家畜生态学报,2017,38(7):50-54,5.基金项目
国家重点研究发展计划(2016YFD0500505) （2016YFD0500505）
国家自然科学基金(31272485) （31272485）
