Beef cattle feedlot surface water containing multi-class agrochemicals elicits physiological and behavioral responses among Daphnia pulex

2021 ◽  
Vol 193 (7) ◽  
Author(s):  
Olukayode J. Ayodeji ◽  
Olushola M. Awoyemi
Keyword(s):  
Surface Water ◽  
Beef Cattle ◽  
Daphnia Pulex ◽  
Behavioral Responses ◽  
Cattle Feedlot

The effects of contaminated sediments of the Blesbok Spruit near Witbank on water quality and the toxicity thereof to Daphnia pulex

1999 ◽  
Vol 39 (10-11) ◽  
pp. 173-176 ◽  
Author(s):  
Liesl Hill ◽  
Sebastian Jooste
Keyword(s):  
Surface Water ◽  
Mine Drainage ◽  
Interstitial Water ◽  
Stream Water ◽  
Daphnia Pulex ◽  
Contaminated Sediments ◽  
Toxicity Tests ◽  
Major Route ◽  
Acute Toxicity Tests ◽  
Route Of Exposure

With the increasing focus on environmental issues, the objective of this study is to evaluate the potential impact of contaminated sediments of the Blesbok Spruit near Witbank - which receives acid mine drainage (AMD) inter alia - on biota. Direct transfer of chemicals from sediments to organisms is considered to be a major route of exposure for many species, and therefore focusing attention on sediment contamination and highlighting the fact that sediments are an important resource. Acute toxicity tests were performed on Daphnia pulex using both extracted sediment interstitial water and surface water. Chemical analyses were also performed on the sediment, interstitial water and surface water samples. The toxicity results suggest that metal toxicity adds significantly to the toxicity of the stream water which is enhanced by the effect of pH. The pH of the stream and interstitial water was consistently below 4.5.

Use of soybean hulls as a replacement for dry rolled corn in beef cattle feedlot receiving diets

2011 ◽  
Vol 89 (12) ◽  
pp. 4142-4150 ◽  
Author(s):  
C. J. Mueller ◽  
H. M. Blalock ◽  
R. H. Pritchard
Keyword(s):  
Beef Cattle ◽  
Soybean Hulls ◽  
Cattle Feedlot

Non-O157:H7 Shiga Toxin–ProducingEscherichia coliin Bovine Rectums and Surface Water Streams on a Beef Cattle Farm in Argentina

2012 ◽  
Vol 9 (10) ◽  
pp. 878-884 ◽  
Author(s):  
José D. Tanaro ◽  
Lucía Galli ◽  
Liliana H. Lound ◽  
Gerardo A. Leotta ◽  
Mercedes C. Piaggio ◽  
...  
Keyword(s):  
Surface Water ◽  
Beef Cattle ◽  
Shiga Toxin ◽  
Cattle Farm

Runoff Losses of Excreted Chlortetracycline, Sulfamethazine, and Tylosin from Surface-Applied and Soil-Incorporated Beef Cattle Feedlot Manure

2014 ◽  
Vol 43 (2) ◽  
pp. 549-557 ◽  
Author(s):  
Inoka D. Amarakoon ◽  
Francis Zvomuya ◽  
Allan J. Cessna ◽  
Dani Degenhardt ◽  
Francis J. Larney ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Runoff Losses ◽  
Cattle Feedlot

Weed Seed Viability in Composted Beef Cattle Feedlot Manure

2003 ◽  
Vol 32 (3) ◽  
pp. 1105-1113 ◽  
Author(s):  
Francis J. Larney ◽  
Robert E. Blackshaw
Keyword(s):  
Beef Cattle ◽  
Seed Viability ◽  
Weed Seed ◽  
Cattle Feedlot

Ammonia Emission from a Beef Cattle Feedlot and Its Local Dry Deposition and Re-Emission

2016 ◽  
Vol 45 (4) ◽  
pp. 1178-1185 ◽  
Author(s):  
S. M. McGinn ◽  
H. H. Janzen ◽  
T. W. Coates ◽  
K. A. Beauchemin ◽  
T. K. Flesch
Keyword(s):  
Beef Cattle ◽  
Dry Deposition ◽  
Ammonia Emission ◽  
Cattle Feedlot

Escherichia coliO157 in Bovine Feces and Surface Water Streams in a Beef Cattle Farm of Argentina

2010 ◽  
Vol 7 (4) ◽  
pp. 475-477 ◽  
Author(s):  
José D. Tanaro ◽  
Gerardo A. Leotta ◽  
Liliana H. Lound ◽  
Lucía Galli ◽  
Mercedes C. Piaggio ◽  
...  
Keyword(s):  
Surface Water ◽  
Beef Cattle ◽  
Cattle Farm ◽  
Bovine Feces

scholarly journals Nitrous Oxide Fluxes from a Commercial Beef Cattle Feedlot in Kansas

2014 ◽  
Vol 7 ◽  
pp. ASWR.S12841 ◽  
Author(s):  
Orlando A. Aguilar ◽  
Ronaldo Maghirang ◽  
Charles W. Rice ◽  
Steven L. Trabue ◽  
Larry E. Erickson
Keyword(s):  
Nitrous Oxide ◽  
Beef Cattle ◽  
Agricultural Soils ◽  
Environmental Concern ◽  
Surface Condition ◽  
Emission Rates ◽  
Surface Conditions ◽  
Air Temperatures ◽  
Cattle Feedlots ◽  
Cattle Feedlot

Emission of greenhouse gases, including nitrous oxide (N2O), from open beef cattle feedlots is becoming an environmental concern; however, research measuring emission rates of N2O from open beef cattle feedlots has been limited. This study was conducted to quantify N2O emission fluxes as affected by pen surface conditions, in a commercial beef cattle feedlot in the state of Kansas, USA, from July 2010 through September 2011. The measurement period represented typical feedlot conditions, with air temperatures ranging from -24 to 39°C. Static flux chambers were used to collect gas samples from pen surfaces at 0, 15, and 30 minutes. Gas samples were analyzed with a gas chromatograph and from the measured concentrations, fluxes were calculated. Median emission flux from the moist/muddy surface condition was 2.03 mg m−2 hour−1, which was about 20 times larger than the N2O fluxes from the other pen surface conditions. In addition, N2O peaks from the moist/muddy pen surface condition were six times larger than emission peaks previously reported for agricultural soils.

Quantity and Quality of Runoff from a Beef Cattle Feedlot in Southern Alberta

2004 ◽  
Vol 33 (3) ◽  
pp. 1088 ◽  
Author(s):  
Jim J. Miller ◽  
Brian P. Handerek ◽  
Bruce W. Beasley ◽  
Edith C. S. Olson ◽  
L. Jay Yanke ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Southern Alberta ◽  
Cattle Feedlot
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