Fecal Shedding in Cattle Inoculated with Escherichia coli O157:H7 and Fed Corn or Wheat Distillers' Dried Grain with Solubles

被引：3
|
作者：
Hallewell, J. [1 ,2 ]
Barbleri, L. R. [2 ]
Thomas, J. E. [1 ]
Stanford, K. [3 ]
McAllister, T. A. [2 ]
机构：
[1] Univ Lethbridge, Dept Biol Sci, Lethbridge, AB T1K 3M4, Canada
[2] Agr & Agri Food Canada, Lethbridge, AB T1J 4B1, Canada
[3] Alberta Agr & Rural Dev, Lethbridge, AB T1J 4V6, Canada
来源：
JOURNAL OF FOOD PROTECTION | 2013年 / 76卷 / 01期
关键词：
MULTIPLEX PCR ASSAYS; BY-PRODUCTS; DIETS; PREVALENCE; FECES; CULTURE; O157H7; GROWTH; H7; PH;
D O I：
10.4315/0362-028X.JFP-12-104
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Feeding corn dried distillers' grain with solubles (DDGS) has been linked to increased fecal shedding of Escherichia coli O157:H7 in cattle. A study was conducted to compare the impact of three diets containing (dry matter basis) 40% corn DDGS, 40% wheat DDGS, or 20% corn and 20% wheat mixed DDGS to a standard barley grain finishing diet on fecal shedding in cattle challenged with a 10(10) CFU mixture of four nalidixic acid resistant E. coli O157:117 strains. Rectal grab samples (n = 544) were collected over 70 days and screened for E. coli O157:117 by direct plating and immunomagnetic bead separation. Feeding diets containing DDGS had no effect (P > 0.05) on the intensity or duration of fecal shedding of E. coli O157:H7 compared with the standard barley grain finishing diet.
引用
收藏
页码：114 / 118
页数：5
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