Source: AGRICULTURAL RESEARCH SERVICE submitted to NRP
SWINE DIET FORMULATION AND ITS EFFECT ON DEEP PIT FOAMING
Sponsoring Institution
Agricultural Research Service/USDA
Project Status
ACTIVE
Funding Source
USDA INHOUSE
Reporting Frequency
Annual
Accession No.
0423886
Grant No.
(N/A)
Cumulative Award Amt.
(N/A)
Proposal No.
(N/A)
Multistate No.
(N/A)
Project Start Date
Jan 1, 2013
Project End Date
Mar 1, 2015
Grant Year
(N/A)
Program Code
[(N/A)]- (N/A)
Recipient Organization
AGRICULTURAL RESEARCH SERVICE
(N/A)
AMES,IA 50010
Performing Department
(N/A)
Non Technical Summary
(N/A)
Animal Health Component
40%
Research Effort Categories
Basic
60%
Applied
40%
Developmental
0%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
6050420200010%
1320430201015%
6050499207010%
1322410106015%
6053910107010%
1325210200010%
6057210201010%
1320110106010%
1320410107010%
Knowledge Area
605 - Natural Resource and Environmental Economics; 132 - Weather and Climate;

Subject Of Investigation
0420 - Weather; 3910 - Cross-commodity research--multiple animal species; 0110 - Soil; 0430 - Climate; 0499 - Atmosphere, general/other; 2410 - Cross-commodity research--multiple crops; 0410 - Air; 5210 - Fertilizers; 7210 - Remote sensing equipment and technology;

Field Of Science
2010 - Physics; 2070 - Meteorology and climatology; 1060 - Biology (whole systems); 1070 - Ecology; 2000 - Chemistry;
Goals / Objectives
Determine the effect diet formulation has on the potential for swine manure to foam.
Project Methods
The proposed project will characterize the effect swine diet formulation has on the potential for swine manure to foam. The goal of the project is determine the cause of swine deep pit foaming and enhance the scientific understanding of pit foaming. Areas of interest include diet formulation contribution and development of pit foaming potential indexes for both chemical and biological properties. The animal feeding trial will be carried out at the ISU swine farm with multiple diet formulations. Diet formulation will be dependent on the initial survey of producers feed inputs and analysis of manure collected from both foaming and non-foaming deep pits. Survey information is being developed by researchers from University of Minnesota, University of Illinois, and Iowa State University. Animal feeding trial manures will be tested for potential to foam from both a physical/chemically characterization and biological methane forming potential. The physical/chemical potential will include bubbling of nitrogen gas into manure to measure foaming potential, measuring the surface tension of the manure, quantifying a number of chemical components from fatty acid concentrations to protein levels in the manure. Biological properties of the manure will include methane forming potential and community analysis.

Progress 10/01/12 to 09/30/13

Outputs
Progress Report Objectives (from AD-416): Determine the effect diet formulation has on the potential for swine manure to foam. Approach (from AD-416): The proposed project will characterize the effect swine diet formulation has on the potential for swine manure to foam. The goal of the project is determine the cause of swine deep pit foaming and enhance the scientific understanding of pit foaming. Areas of interest include diet formulation contribution and development of pit foaming potential indexes for both chemical and biological properties. The animal feeding trial will be carried out at the ISU swine farm with multiple diet formulations. Diet formulation will be dependent on the initial survey of producers feed inputs and analysis of manure collected from both foaming and non-foaming deep pits. Survey information is being developed by researchers from University of Minnesota, University of Illinois, and Iowa State University. Animal feeding trial manures will be tested for potential to foam from both a physical/chemically characterization and biological methane forming potential. The physical/chemical potential will include bubbling of nitrogen gas into manure to measure foaming potential, measuring the surface tension of the manure, quantifying a number of chemical components from fatty acid concentrations to protein levels in the manure. Biological properties of the manure will include methane forming potential and community analysis. In 2013, analytical methods for determining both short chain fatty acids (SCFA) and long chain fatty acids (LCFA) in swine manure were developed. The methods were used to process over 800 samples for determining levels of SCFA and LCFA in both foaming and non-foaming barns. Foaming barns had lower SCFA levels and there were higher levels of LCFA in the foaming pits. Gas emissions from two animal feeding trials explored the role diets had in foaming pits. Methods are being developed for characterizing foaming material.

Impacts
(N/A)

Publications