FGD Gypsum Litter Effects on Gaseous Losses from a Broiler House
Abstract
Background and Objectives: Greenhouse gas (GHG) emissions are increasing at an unprecedented rate and are expected to double pre-industrial revolution levels within this century. The effects of broiler house management on these emissions are unknown. A study was conducted to examine the effect of FGD gypsum bedding on efflux of NH3, CO2, CH4 and N2O. Materials and Methods: FGD gypsum bedding was compared with pine shavings and pine shaving+FGD gypsum (50:50 mix) and each litter type was either decaked or rotovated after each flock. Flux measurements (CO2, CH4 and N2O) and NH3 concentrations were taken during flocks 4 and 5. Results: Litter treatment had little effect on GHG gas emissions during flocks 4 and 5 but NH3 concentrations tended to be lower with FGD gypsum. Decaking tended to lower NH3 concentration and GHG emissions due to removal of some of the manure material. Conclusion: This first examination of the effects of different litter materials on GHG emissions from broiler houses showed that FGD gypsum can reduce NH3 concentrations without impacting climate change; however, more research is needed to verify these results.
Keywords:
Ammonia, carbon dioxide, climate change, FGD gypsum, global warming potential, greenhouse gases, litter management, methane, nitrous oxideArticle Metrics
License
Copyright (c) 2020 The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License.
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.