Effect of feeding wet distillers grains with solubles (WDGS) to growing-finishing cattle on ammonia concentration in air and manure nutrient composition

2011 ◽  
Author(s):  
Mindy J Spiehs ◽  
Daniel N Miller ◽  
Bryan L Woodbury ◽  
Roger A Eigenberg ◽  
Vince H Varel ◽  
...  
Keyword(s):  
Ammonia Concentration ◽  
Nutrient Composition ◽  
Distillers Grains ◽  
Finishing Cattle ◽  
Distillers Grains With Solubles ◽  
Wet Distillers Grains ◽  
Effect Of Feeding

Effect of Feeding Wet Distillers Grains With Solubles to Beef Cattle on Air and Manure Quality

2012 ◽  
Vol 28 (3) ◽  
pp. 423-430 ◽  
Author(s):  
M. J. Spiehs ◽  
D. N. Miller ◽  
B. L. Woodbury ◽  
R. A. Eigenberg ◽  
V. H. Varel ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Distillers Grains ◽  
Distillers Grains With Solubles ◽  
Wet Distillers Grains ◽  
Effect Of Feeding

Prevalence and Level of Escherichia coli O157:H7 in Feces and on Hides of Feedlot Steers Fed Diets with or without Wet Distillers Grains with Solubles†

2009 ◽  
Vol 72 (8) ◽  
pp. 1624-1633 ◽  
Author(s):  
J. E. WELLS ◽  
S. D. SHACKELFORD ◽  
E. D. BERRY ◽  
N. KALCHAYANAND ◽  
M. N. GUERINI ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Feedlot Cattle ◽  
Distillers Grains ◽  
Escherichia Coli O157 ◽  
Finishing Cattle ◽  
Average Percentage ◽  
E Coli ◽  
Distillers Grains With Solubles ◽  
Phase 0 ◽  
Wet Distillers Grains

The objective of this study was to determine if wet distillers grains with solubles (WDGS) from corn in diets affected Escherichia coli O157:H7 in growing and finishing cattle; steers (n = 603) were randomly assigned to diets with or without WDGS. Hide and fecal samples were collected monthly (October through June) from each animal for enumeration and enrichment of E. coli O157:H7. In the growing phase (0 or 13.9% WDGS diets), fecal prevalence for E. coli O157:H7 in steers fed a diet with WDGS was twice that of the prevalence in control steers (P < 0.001). In the finishing phase (0 or 40% WDGS diets), the average prevalence in feces (P < 0.001) and on hides (P < 0.001) was higher for cattle fed WDGS. The average percentage of fecal E. coli O157:H7 enumerable samples during the finishing phase for cattle fed WDGS was 2.7% compared with 0.1% for control steers (P < 0.001). The average percentage of E. coli O157:H7 enumerable hide samples was not different between diets, but the cattle fed WDGS had higher levels (P < 0.05) of the pathogen. Animals fed WDGS had higher levels of E. coli (P < 0.001), higher pH values (P < 0.001), and lower concentrations of l-lactate (P < 0.001) in feces than those values of the control steers. These results indicate that feeding 40% WDGS could increase the level and prevalence of E. coli O157:H7 in and on feedlot cattle when E. coli O157:H7 is seasonally low.

Effects of reduced-fat modified wet distillers grains with solubles on beef steer performance and carcass composition

2013 ◽  
Vol 29 (5) ◽  
pp. 518-528 ◽  
Author(s):  
J.L. Veracini ◽  
P.M. Walker ◽  
B.R. Wiegand ◽  
R.L. Atkinson ◽  
M.J. Faulkner ◽  
...  
Keyword(s):  
Carcass Composition ◽  
Distillers Grains ◽  
Distillers Grains With Solubles ◽  
Reduced Fat ◽  
Wet Distillers Grains ◽  
Beef Steer

scholarly journals PSIV-22 The effects of altering ruminal fermentable carbohydrate supply in finishing diets containing distillers grains on rumen fermentation characteristics and nitrogen utilization

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 220-220
Author(s):  
Cody Ream ◽  
Allison V Stevens ◽  
Gwinyai Chibisa
Keyword(s):  
Dry Matter ◽  
Latin Square ◽  
Ammonia Concentration ◽  
Distillers Grains ◽  
Ruminal Fermentation ◽  
Carbohydrate Source ◽  
Finishing Cattle ◽  
Finishing Diets ◽  
Ruminal Ph ◽  
Total Urine

Abstract This study examined the effects of altering ruminal fermentable carbohydrate (RFC) supply by feeding different amounts of corn and wheat in finishing cattle diets containing 15% corn dried distillers grains [DDGS; dry matter (DM) basis] on ruminal fermentation characteristics and nitrogen (N) utilization. Six ruminally-cannulated crossbred heifers were used in a replicated 3 × 3 Latin square design with 28 d periods. Dietary treatments were either corn (73% of diet DM; CON), 53:20 corn:wheat blend (20W) or 33:40 corn:wheat blend (40W) as the major fermentable carbohydrate source. Diets were isonitrogenous (12% CP; DM basis). Feed intake was measured daily. Indwelling pH logger were used to measure ruminal pH (d 22 to 28) and ruminal fluid was collected from d 26 to 28 to determine fermentation characteristics, as were feces and urine to measure N excretion. Data was analyzed using PROC MIXED in SAS. Dry matter and N intake tended to be lower (P ≤ 0.07) for heifers fed the 40W compared to the CON and 20W diets. There was no diet effect (P = 0.15) on total VFA concentration; however, the duration and area for pH < 5.5 tended to be longer (P = 0.07) and greater (P = 0.096), respectively, for heifers fed the 20W and 40W compared to the CON diet. There was no diet effect (P ≥ 0.44) on ruminal ammonia concentration and total urine N excretion (g and % of N intake). However, urine urea N (UUN) excretion as a percentage of total urine N tended to be lower (P = 0.05) in heifers fed the 20W and 40W compared to the CON diet. In summary, although altering RFC supply by feeding increasing amounts of wheat resulted in a decrease in UUN excretion, it also caused a decrease in ruminal pH that possibly compromised DM intake.

Persistence of Escherichia coli O157:H7 and Total Escherichia coli in Feces and Feedlot Surface Manure from Cattle Fed Diets with and without Corn or Sorghum Wet Distillers Grains with Solubles

2017 ◽  
Vol 80 (8) ◽  
pp. 1317-1327 ◽  
Author(s):  
Elaine D. Berry ◽  
James E. Wells ◽  
Vincent H. Varel ◽  
Kristin E. Hales ◽  
Norasak Kalchayanand
Keyword(s):  
Escherichia Coli ◽  
Distillers Grains ◽  
Transmission Risk ◽  
Escherichia Coli O157 ◽  
High Moisture ◽  
E Coli ◽  
Distillers Grains With Solubles ◽  
Wet Distillers Grains ◽  
High Moisture Corn

ABSTRACT Feeding corn wet distillers grains with solubles (WDGS) to cattle can increase the load of Escherichia coli O157:H7 in feces and on hides, but the mechanisms are not fully understood. The objective of these experiments was to examine a role for the persistence of E. coli O157:H7 in the feces and feedlot pen surfaces of cattle fed WDGS. In the first study, feces from steers fed 0, 20, 40, or 60% corn WDGS were inoculated with E. coli O157:H7. The E. coli O157:H7 numbers in feces from cattle fed 0% corn WDGS rapidly decreased (P < 0.05), from 6.28 to 2.48 log CFU/g of feces by day 14. In contrast, the E. coli O157:H7 numbers in feces from cattle fed 20, 40, and 60% corn WDGS were 4.21, 5.59, and 6.13 log CFU/g of feces, respectively, on day 14. A second study evaluated the survival of E. coli O157:H7 in feces from cattle fed 0 and 40% corn WDGS. Feces were collected before and 28 days after the dietary corn was switched from high-moisture corn to dry-rolled corn. Within dietary corn source, the pathogen persisted at higher concentrations (P < 0.05) in 40% corn WDGS feces at day 7 than in 0% WDGS. For 40% corn WDGS feces, E. coli O157:H7 persisted at higher concentrations (P < 0.05) at day 7 in feces from cattle fed high-moisture corn (5.36 log CFU/g) than from those fed dry-rolled corn (4.27 log CFU/g). The percentage of WDGS had no effect on the E. coli O157:H7 counts in feces from cattle fed steam-flaked corn-based diets containing 0, 15, and 30% sorghum WDGS. Greater persistence of E. coli O157:H7 on the pen surfaces of animals fed corn WDGS was not demonstrated, although these pens had a higher prevalence of the pathogen in the feedlot surface manure after the cattle were removed. Both or either the greater persistence and higher numbers of E. coli O157:H7 in the environment of cattle fed WDGS may play a part in the increased prevalence of E. coli O157:H7 in cattle by increasing the transmission risk.

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