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The entire animal production process
(1) INTIA, Villava (Navarra), ES(2) NEIKER-Tecnalia, Derio (Bizkaia), ES(3) IRSTEA, Rennes, FR
(4) TEAGASC, Johnstown Castle, Wexford, IE(5) INSTITUTO SUPERIOR DE AGRONOMIA, Lisboa, PT(6) GLASGOW CALEDONIAN UNIVERSITY, Glasgow, UK
Aguilar M.1*, Arriaga H.2, Dupard P.3, Lalor S.4, Fragoso R.5, Pahl O.6, Abaigar A.1, Cordovín L.1, Boyle M.6, Lanigan G.4, Loyon L.3, Merino P.2
*Corresponding author. E-mail: maguilar@intiasa.es
We present a novel tool to assess the mitigation potential of nitrousoxide (N2O), methane (CH4) and ammonia (NH3) losses as aconsequence of different strategies and techniques implemented onintensive cattle, pig and poultry farms.
ConsideringManagement Practices and Climatic Conditions
Designed for farm-scale use
Inputs typically well known by the farmer
A comparison of strategies
GASEOUS EMISSIONS PATTERN THROUGHOUT THE YEAR
GASEOUS EMISSIONS (NH3, CH4, N2O) IN THE DIFFERENTFARM STAGES FOR 2 STRATEGIES
21% Emissionreduction
Feed, water and energy consumption Animal production NH3, N2O, CH4 emissions Solid and liquid manure production and composition Nutrients in soil Effects on Faecal Indicator Organisms (FIOs)
The software enables simulation and comparison ofthe combined effects of different environmentaltechniques throughout all the farm process, and takesinto account specific management and climaticconditions, with the aim of facilitating the selection ofthe most suitable techniques for a particular situation.
Further tests will be necessary to validate the resultsprovided by this tool.
Animal nutrient balance, considering zoo-technical and nutritionaldata
Covers Additives
Separation techniques Aerobic treatment Anaerobic digestion Gravity decantation Composting
Equipment Manure Incorporation Dry matter content in the slurry
Faecal Indicator Organisms (FIOs) - E. coli and coliforms
3-stage qualitative scale
TREATMENT
Gas emission factors considering: the type of floor, the frequencyof slurry removal, slurry temperature, nitrogen dilution in theslurry, ventilation rates, bedding characteristics, grazing periodsand other best available techniques (BATs)
Different nutritional management (adjustment of protein and phosphorus)
STORAGE
LANDSPREADING
HOUSING
This work has been funded byBATFARM Interreg-Atlantic AreaProject (2009-1/071)
MAIN OUTPUTS OF THE MODEL
FIOs
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