WATT PoultryUSA - February 2017 - 36

36 ❙ WATTPoultryUSA
NUTRIENT RUNOFF PRACTICES
with an expanded concrete front pads that allows for
easier cleanup, and four houses with traditional small concrete and gravel front pads, shows total phosphorus and
nitrogen runoff is over 50 percent lower with the expanded
concrete pads. Although, this is too short a monitoring period to draw reliable conclusions, it does show the potential benefits of this measure. Monitoring is continuing.
On the University-operated poultry research farm, we
are evaluating the use of two locally sourced byproducts,
red-mud iron tailings from steel-belt production and a residual from the area drinking water treatment facility, to trap
phosphorus adjacent to the poultry houses. These byproduct
materials previously land filled, can still bind large amounts
of phosphorus added to them (Figure 4). By placing these
byproducts in removable trays below exhaust fans, red
muds decreased potentially leached phosphorus from 11.0
mg L-1 to 0.7 mg L-1 and water treatment residual to 1.1
mg L-1. The beneficial use of these byproducts as a future
conservation practice continues to be investigated.

Figure 4. Water treatment removes 92 percent of
added phosphorus. Red mud iron tailings remove
98 percent of added phosphorus.
ized with poultry litter to meet the phosphorus requirements
of warm season grasses. However, we are documenting the
effectiveness of several conservation practices, which might
be adopted by farmers to further minimize nutrient runoff.
Practices that we recommend to minimize nutrient runoff
from broiler production facilities are listed in Table 2. In the
next three years, the ADF should be able to provide reduction efficiencies for these practices, along with estimates of
cost-reduction benefits. ■

Recommended practices to reduce nutrient runoff
Results from the ADF program demonstrate that the loss
of phosphorus and nitrogen in runoff from around poultry
houses is only slightly greater than that from pastures fertil-

Andrew Sharpley, Department of Crop Soil, and
Environmental Sciences, Division of Agriculture
University of Arkansas System, Fayetteville, AR 72701

www.WATTAgNet.com ❙ February 2017


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Table of Contents for the Digital Edition of WATT PoultryUSA - February 2017

Poultry USA - February 2017
Contents
Study shows wheat quality’s impact on broiler performance
Animal ag needs metrics for antimicrobial stewardship
US foundation works to end African poverty with chickens
Cargill ad campaign highlights turkey growers
100TH YEAR SERIES: Seed biotechnology: The impact on animal production
US broiler farms monitor nutrient runoff practices
7 additives to replace antibiotics in US broiler feeds
Product Review
Market Place
Ad Index
WATT PoultryUSA - February 2017 - Poultry USA - February 2017
WATT PoultryUSA - February 2017 - Cover2
WATT PoultryUSA - February 2017 - Contents
WATT PoultryUSA - February 2017 - Animal ag needs metrics for antimicrobial stewardship
WATT PoultryUSA - February 2017 - 3
WATT PoultryUSA - February 2017 - 4
WATT PoultryUSA - February 2017 - 5
WATT PoultryUSA - February 2017 - 6
WATT PoultryUSA - February 2017 - 7
WATT PoultryUSA - February 2017 - US foundation works to end African poverty with chickens
WATT PoultryUSA - February 2017 - 9
WATT PoultryUSA - February 2017 - 10
WATT PoultryUSA - February 2017 - 11
WATT PoultryUSA - February 2017 - 12
WATT PoultryUSA - February 2017 - 13
WATT PoultryUSA - February 2017 - 14
WATT PoultryUSA - February 2017 - 15
WATT PoultryUSA - February 2017 - 16
WATT PoultryUSA - February 2017 - 17
WATT PoultryUSA - February 2017 - Cargill ad campaign highlights turkey growers
WATT PoultryUSA - February 2017 - 19
WATT PoultryUSA - February 2017 - 20
WATT PoultryUSA - February 2017 - 21
WATT PoultryUSA - February 2017 - 22
WATT PoultryUSA - February 2017 - 23
WATT PoultryUSA - February 2017 - 24
WATT PoultryUSA - February 2017 - 25
WATT PoultryUSA - February 2017 - 100TH YEAR SERIES: Seed biotechnology: The impact on animal production
WATT PoultryUSA - February 2017 - CT1
WATT PoultryUSA - February 2017 - CT2
WATT PoultryUSA - February 2017 - 27
WATT PoultryUSA - February 2017 - 28
WATT PoultryUSA - February 2017 - 29
WATT PoultryUSA - February 2017 - US broiler farms monitor nutrient runoff practices
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WATT PoultryUSA - February 2017 - 49
WATT PoultryUSA - February 2017 - 7 additives to replace antibiotics in US broiler feeds
WATT PoultryUSA - February 2017 - 51
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WATT PoultryUSA - February 2017 - 55
WATT PoultryUSA - February 2017 - 56
WATT PoultryUSA - February 2017 - Product Review
WATT PoultryUSA - February 2017 - 58
WATT PoultryUSA - February 2017 - Market Place
WATT PoultryUSA - February 2017 - Ad Index
WATT PoultryUSA - February 2017 - Cover3
WATT PoultryUSA - February 2017 - Cover4
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